Vertical Edz Antenna

Right folks, it's been a while since I embarked on my tri-band 20, 17, and 15m Moxon project for the beach. HF Vertical Antennas and Packages. I was looking for more directionality on the 10 meter band, so I created an Extended Double Zepp (EDZ) antenna The object of this antenna: purportedly the 3 db gain, more directional, and to bypass a tuner. With these two, I can operate anywhere from 80 to 6 Meters with no problems. I really never could find may cases where a vertical stack of more than two antennas was worth much. RID_Extract Chart1 RID_Extract Ormeau Road Belfast, Co. Here we have collected some links to building instructions for 11m antennas on the Internet. Most of the geotechnical. Please note: There is a large difference between distributed feed or branched feed curtain arrays like USIA arrays and Lazy H antennas and narrow or single band curtains like Sterba, Bobtail, and Bruce arrays. Customer responsible for return shipping on core items. The larger the wire, the wider the bandwidth. According to G3ZPS, the "extended double zepp or EDZ is one of the most successful wire antennas ever developed…. Clamps EDZ steel TA-926H-8-60 The TA-926H-8-60 is a horizontally polarized 60 degree sectoral antenna. The measurements below are for building a simple Dipole Antenna. 2) the vertical equation of motion takes the form do; dt 1 8p p 8z-= ----g (1. The Wire Size can range from 16 AWG to 12 AWG. Free essays, homework help, flashcards, research papers, book reports, term papers, history, science, politics. Two profiles (1 and 2) are in the Porphyroid and one in the slate (3). Home‎ > ‎. 160 Meter Antennas. Testing has concluded that the antenna works as well as the old EDZ. NIDXA-Sponsored 2018 CQ DX Marathon Plaque Winner K2JL Hello DX Friends! I just wanted to thank you for sponsoring the 2018 CQ DX Marathon Formula Class plaque! With my simple setup of 100w and a few wire antennas (1 Carolina Windom and 3 EDZ antennas plus a DXE 43' vertical), I was able to take home first place in 2018. My name is Ed Fong WB6IQN and I am currently on the. The double extended Zepp is a dipole type Antenna consisting of two collinear 0. V-Dipoles; Wire Antennas; Horizontal Antennas; Vertical Antennas; Loop Antenna. 6 Meter Antenna Build. 25 wl extended double Zepp (EDZ), are commonplace. An automatic tuner should tune this antenna with no problem. NIDXA-Sponsored 2018 CQ DX Marathon Plaque Winner K2JL Hello DX Friends! I just wanted to thank you for sponsoring the 2018 CQ DX Marathon Formula Class plaque! With my simple setup of 100w and a few wire antennas (1 Carolina Windom and 3 EDZ antennas plus a DXE 43' vertical), I was able to take home first place in 2018. Dahlberg N7AGK Editors note: The author of this project arrived at these plans by experimentation so this antenna should be considered an experimental project by the builder. Best 40 meter dx antenna. These would also work well on the higher bands. This is what I like about antenna building, always more to learn, have a edz up vertical at 75 feet to the top, still trying to get her tuned on open line, as it is about 140 feet of feeder, have had it working, but it is not getting out like it should. Wire antennas for ham radio. Because the antenna is basically 1. So my offering to FDIM 9 will also be a matter of 5: my personal selection of the top 5 HF wire antennas for the backyard and for multi-band operation. Dipole Antenna Calculator. The peak current at a position well above the top of the short antenna is said to give the longer monopole a lower-angle of radiation and additional gain. Building and experimenting with antennas can be an interesting part of the radio hobby. Signals from some parts of 4-land are weaker with this ant but it has some lobes offf the ends. In spite of having a 20 meter EDZ with reflectors aimed east and a 40 meter EDZ broadside N & S erected as an inverted vee, I just couldn't scare up the activity on 20 that I had hoped for. The antenna is at DC ground to aid in lightning protection. Subject: Re: [Elecraft] Folded Dipole Antennas Interesting. This 20 Meter Extended Double Zepp (EDZ) antenna should produce a 3-dB over the average half-wave dipole. Larry, Theoretical gain of a 1/4 wave vertical antenna is about 1. 20 Meter "Vertical Zepp Dipole" Antenna by Carl H. Antrim BT7 1EB 0845 247 0000 BPA PSU Talk Ltd 01698-305285 18 Worsley Grange Kemnal Road Chislehurst Kent BR7 6NL. Doublet Antenna : This is my favorite multi-band dipole. This link is listed in our web site directory since Sunday Jan 18 2015, and till today "40M Bazooka antenna" has been followed for a total of 4105 times. If coax feed is a must, a simple matching arrangement is shown in Figure 2. 5' on 10 meters), the antenna shows a feedpoint impedance ranging from 175-j930 at the short end to 110-j640 at the long end. The physical length of any HF antenna is critical to achieving resonance and good performance on a particular band. 160 Meter Antennas. The TA-5204-8-120 is a vertically polarized 120 degree sectoral antenna. Feeding the EDZ L. Once again the antenna was shipped and received with in a few days. I had a few minutes before the contest started, so made 2 dozen quick contacts on 20 using my Pacificon Special antenna. I have been using both the 20M and 40M EDZ for a few years at 43' Inverted V configuration and have had interesting results with making comparisons between dipoles at the same height with national contacts sometimes favoring the dipoles and the radiation patterns you have shown put some light on why this is so. This is an 86' foot doublet and is fed with balanced line. With this setup, the antenna will only work on ten meters. Since vertical antenna are negetively impacted by being close to metal and other. 2017 Nov 29 - This Pin was discovered by Atunsr123 Atunsr12. So, each segment is about. On the other bands its will have about the the same gain as a dipole. The 1/2-wave 80-meter doublet with ladder line all the way to a 1:1 bifilar choke/balun in or near the tuner is a much better antenna for 80-10, provided you adjust the ladder line length to avoid the voltage and current anti-nodes (i. Not if the feedline isn't part of the antenna and doesn't radiate. Solid advice from brother Jeff, so I ignored it. 25WL length. I had a few minutes before the contest started, so made 2 dozen quick contacts on 20 using my Pacificon Special antenna. This page was copied November 7th, 2000 from: http://www. This 20 Meter Extended Double Zepp (EDZ) antenna should produce a 3-dB over the average half-wave dipole. Homebrew 2m 144 MHz vertical 1/2 wave Coaxial Dipole antenna for QTH, SOTA & portable field operations/WICEN exercises. Dipoles need to be half a wavelength long, locating these long antennas can be an issue, especially when we are aiming for the 80 metre band or lower. 8,130,168) for ease of assembly and adjustments. I don't think it was any better than just feeding the one side without the clip on extention (107 ft). Whether you need a stock replacement for restoration, a direct fit resonator to fine tune your sound and flow, or a universal model for your completely custom exhaust. My success with using EZNEC to accurately tell what the gain will be has always eluded me. It has a "reflector system" that consists of 3 nested reflectors, but not nested in the typical nested fashion. T his 20 Meter Extended Double Zepp (EDZ) antenna should produce a 3-dB over the average half-wave dipole. 2) the vertical equation of motion takes the form do; dt 1 8p p 8z-= ----g (1. 500 MHz: Radiation pattern and mounting details. MHZ Diamond X50 vertical, a six meter loop, and a 160 meter inverted V. 500 MHz: Radiation pattern and mounting details KL7JR 5 BAND PIPE VERTICAL - 20-17-15-12-10 METER VERTICAL ANTENNA PROJECT. Signals from some parts of 4-land are weaker with this ant but it has some lobes offf the ends. I couldn't test in on 160m yet, because my own rig (IC-730) doesn't work on that band, but the measurements with the MiniVNA show a acceptable SWR between 1800 and 2000 kHz. Another antenna to look at is a 120' 80M dipole (cut roughly for 3. Addendum and Errata to the Second Reprint (8 November 2004). Jan 7, 2017 - 11 m Band Extended Double Zeppelin 'Zepp' (EDZ) antenna centred at 27. MFJ-949D Antenna Tuner, K4VIZ Camelback key, Czech key, J-38 key and for some contests a K4VIZ Vertical Single Paddle Keyer EDZ antennas for 6 Meters in the summer months. As an aside, if your antenna is 300 or 450 ohms impedance, you can feed it with a 300 ohm or 450 ohm Balanced Ladder Line. HF Portable/Apartment Antenna. It accomplishes that gain because it has a narrower horizontal beamwidth than a dipole. Since EDZ and fracture zone have the potential of affecting the safety of the underground openings and repository performance, many studies were conducted to characterize the EDZ and fracture zone by different methods, such as the rock mass displacements and strain measurements, seismic refraction survey, seismic tomography and hydraulic test, etc. Figure 1 The Balun is hung at a right angle A paracord is attached to Balun in the opposite direction from the coax to oppose the pull of the coax and is needed to. These can be really long but if you have the room and tall enough supports this antenna will give you the same gain as a two element beam in two opposite directions. com in 2 categories. So let's proceed to the Mini-MOXON project at W7XA Linear loading (making a folded back section) is somewhat mechanically complex and can add significantly. No category PDF. Such as it may be. Honeywell Aerospace Electric Power Systems, Honeywell Aerospace Engine (Suzhou) Co. THE POET'S CRAFT BOOK Edited by. tomorrow i will be ordering a roll of solder wick and some replacement SMA connectors to try. This morning I swapped the MFJ-1886 with the NEW Wellbrook ALA1530LNP. Longer elements, such as the 1. Antenna analysis. Figure 1 shows one general method of. The end fed antenna is essentially half a dipole, it uses a good earth connection to complete the arangment. RID_Extract Chart1 RID_Extract Ormeau Road Belfast, Co. However, all of the horizontal currents are flowing in the same direction and so create the effect of a pair of horizontal current peaks at the same height as. You can stack Yagis vertically, horizontally, or even in depth. I attached 88 ft. (3-1-2000). An EDZ is just what others would call a "five-eighths wavelength vertical", but here balanced as a dipole, not over ground as a vertical. Solid advice from brother Jeff, so I ignored it. After reading the article Antennas and the QRP Operator by Jim Thompson, W4THU, in Low Power Communications, Volume 2 (edited by Rich Arland, K7YHA), I built a 20m Extended Double Zepp. Vertical and Horizontal Spread Model. I have been using an EDZ antenna fed with 600 ohm open wire line but have been unsuccessful in stopping 100% of the RF from getting into the system. MFJ-949D Antenna Tuner, K4VIZ Camelback key, Czech key, J-38 key and for some contests a K4VIZ Vertical Single Paddle Keyer EDZ antennas for 6 Meters in the summer months. It has a "reflector system" that consists of 3 nested reflectors, but not nested in the typical nested fashion. Moreover, we may combine both end-fire and broadside techniques into single arrays. Now, however, the “monopole” antenna is understood as a special case of a dipole which has a virtual element “underground”. 1 - 40m dipole broadside gain patterns vs. This antenna is a square horizontal loop, 21m (69') per side, 84m (276') total length. The most productive bands were 20 and 40 meters CW with approximately 150 QSO's there. 99 Buy It Now 30d 3h 47m 44s , $7. [TowerTalk] Insights on 30m EDZ - nowhere near what I thought, Ken Bauer via TowerTalk, 18:11 February 02, 2020 Re: [TowerTalk] HyGain DCU-3 Firmware Upgrrade? , Steve Colello , 09:56. antenna at or above the height of the top for a good distance before dropping it down. My antennas are similarly modest. For example, I have found that my 20m vertical end fed half wave antenna with the bottom 1m from the ground is an extremely effective antenna. Description. This antenna is basically two 5/8 wave antennas end to end. Dipole Antenna Calculator. But a tuner like a Johnson Matchbox and parallel line should make short work of that problem, and provide a multiband antenna of merit. ANTENNA HAS 10 BEAM 12- IN. This is significant enough to try it. Antennas are fed with TV RG-6Q Coax. Sunnyvale, CA 94087 Welcome to our Website. The Wire Size can range from 16 AWG to 12 AWG. As an aside, if your antenna is 300 or 450 ohms impedance, you can feed it with a 300 ohm or 450 ohm Balanced Ladder Line. Tomorrow I will also re-arrange my station a bit. Something along these lines has been "conventional wisdom" for a long time but I'd never seen any real justification for it. The wire itself consists of 168 strands of #36 gauge woven copper. Best of all, the EDZ beam produces patterns that look like faces with interesting ears -- antenna modeling is full of surprises, and not all of them are technical. Introduction: The Extended Double Zeppelin 'Zepp' (EDZ Dipole Investments 8 Main Reef Road 1508 Benoni Gauteng. An Elecraft K2, along with a 20 meter EDZ antenna, was used on all CW bands from 80 to 10 meters. net/~jimhenry/esp/vortaroj/esp_angl. The term comes from the appearance of antennas arrayed above one another in the vertical plane. This material is very strong yet can easily be coiled like a rope for portable work. In a nutshell, each antenna is an end fed (high impedance) wire of at least one-half wavelength and configured as a vertical dipole, inverted ground plane, half square, or bobtail curtain. Of course, K1ZZ was overpowering, as always, but his signal is the exception. front-to-rear, F/R), gain (in the forward direction), feedpoint impedance (hence, SWR bandwidth), and side-lobes These characteristics depend in a complex manner on design parameters such as spacing between the. UHF Raw Gain = 7. Overall, we believe the 2 ele vertical array over salt water is a better all around antenna than a full size 3 ele 80m Yagi at 200′! The next graph examines the take off angles on 10m to Europe. Coax feed 6 meter extended double zepp zip cord antenna. The TA-5404-8-120 is a vertically polarized 120 degree sectoral antenna. • 2 - TCAS Directional Antennas • 2 - RCZ851E Comm/Xpdr Unit and • 2 - EDZ-816 EFIS Display • 1 - EDZ-816 MFD Display or • 2 - DV-910 VSI/TRA Display The TCAS 2000 system (RA/TAs) may be displayed on the Honeywell EFIS configured with Honeywell symbol generators P/N 7011674-526 for the EHSI and P/N 7011675-526. Aug 30, 2016 - Great Quality End Fed, FW Delta Loops and Windom Multiband HF Ham Radio Antennas. Thanks for the information. Antenna Systems. Michael Babineau VE3WMB EDZ – Extended Double Zepp • 44 or 88 foot doublet - fed with twin-lead or ladder-line (Google 'Norcal Doublet') • 44 ft version will operate on 40m through 10m • 88 ft version adds 80m operation • Advantage over a 40m dipole is that major antenna lobes are broadside to antenna on all bands. Light Weight 4. With your original doublet sized as a G5RV, it probably had a narrow EDZ style pattern on 20m before the mods. The EDZ is a nonresonant antenna, displaying great capacitive reactance. The cost of the resistive termination is 5 dB or so. 160 Inverted L Antenna 165 ft. A 160 meter vertical antenna that can be raised and lowered by one person. In my case, I have two antennas - an 88' Extended Double Zepp (EDZ) wire antenna and a Butternut HF9V antenna. Telex Communications' new V-2 antenna is a 2-meter extended double zepp vertical consisting of two stacked 5/8-wave sections decoupled inside the antenna for complete weather-proofing. Learning Unit 5 HF Wire Antennas with Gain Objectives and Overview: Take the student to the next step beyond the half-wave dipole and introduce wire antennas with enhanced directivity and gain. Although many people attempt to feed it with coax cable, I prefer to feed it with openwire feedline. If used as a vertical antenna then it doesn't need an extensive set of earth radials to be efficient. The measurements below are for building a Extended Double Zepp Near Vertical Incident Skywave (NVIS) Antenna. The main category is Antennas for 40 meters band that is about 40 meter band antennas projects. [TowerTalk] Insights on 30m EDZ - nowhere near what I thought, Ken Bauer via TowerTalk, 18:11 February 02, 2020 Re: [TowerTalk] HyGain DCU-3 Firmware Upgrrade? , Steve Colello , 09:56. piece of 2" diameter irrigation pipe and a short piece of PVC pipe. Vertical Antenna 5/8 wave for 15 mtr ham radio band; Vertical Antenna for DX. I say fantastic only because when you compare the height requirements and maintenance requirements, the phased array has tremendous bang for the buck. MFJ-949D Antenna Tuner, K4VIZ Camelback key, Czech key, J-38 key and for some contests a K4VIZ Vertical Single Paddle Keyer EDZ antennas for 6 Meters in the summer months. Easy Installation and Configuration. 2013 Year INDEX January http://www. O Box 645 Glenville, NC 28736 Voice: 828-743-1338 Fax: 866-304-8479. On this band, the 67' doublet is about 1. 6 meter zip cord edz 50 ohm feed 6 meter halo loop 6 meter edz signal squirter 6 meter 5/8 wave vertical 3 element beam for 6 another 6 meter loop the hentenna re-visited another 6 m j pole design one element beam 20 thru 6! n3sdo "j" beam 2 meter train track antenna 2 meter ultra cheap antenna 440 sling shot slim jim antenna 300 ohm twin lead. The sample EDZ uses a length just above 1. If I remember right, a 0. The Extended Double Zeppelin 'Zepp' (EDZ) is a copper wire antenna and is probably the most successful wire antenna ever developed. Count on us to get you this TELECOMMUNICATION & ELECTRICAL HARDWARE. Made from a 20-ft. T his 20 Meter Extended Double Zepp (EDZ) antenna should produce a 3-dB over the average half-wave dipole. it has a good gain and if high enough can be a great antenna on the HF bands. One reason is that there are 2 vertical lobes in the radiation pattern, and the null between them gets deeper with improved ground (see this previous article for the pattern). The grid point data form the SWS world maps of foF2, there are 576 maps, for two ionosheric levels (T=0, T=100), 12 months, and 24 hours. Coax feed 6 meter extended double zepp zip cord antenna. This is what I like about antenna building, always more to learn, have a edz up vertical at 75 feet to the top, still trying to get her tuned on open line, as it is about 140 feet of feeder, have had it working, but it is not getting out like it should. EDZ with 2 reflectors airmed east and a 40 meter EDZ broadside north and south erected as an inverted vee, it was hard to snag many of the NE boys. At 15 meters, the antenna is about 1. Using the standard formula, (468) for a half wave, we multiply times 2 = 936 for a full wavelength. V Beam antenna question I want to put up a 40M V Beam antenna to enhance communication in one direction only. Basically, the Extended Double Zepp Antenna is a pair of 5/8 wave elements. The inverted L is what it is; picture your Hamstick or any vertical and bending it 90 degrees halfway up and expecting some improvement over a nice simple straight vertical. EZNEC The use of W7EL's EZNEC comes with two calculating engines, NEC2 and NEC2D. 99 Buy It Now 30d 3h 47m 44s , $7. The 1KW Ez-Military system is a Multi-Band antenna from Alpha Antenna that includes a heavy duty Mil-Stick whip the solid 6-80 Meter Antenna EzMilitary in a 16" bag with Match & Mount Home. antic ["An tIk] 1. W4THU claims the 20m EDZ will provide 4dB gain over a 1/2-wave dipole on 20m, performance similar to a dipole cut for 40m and 80m on those bands, and. 25 wl long: an extended double Zepp (EDZ). 1 By contrast, everyone knows about the family of antennas related to the half-wavelength dipole: the quarter-wavelength ground plane, the 2-, 3-, and more-element Yagis, the ZL-Special. 5 : 1 max Gain:3dBi Impedance 50 Ohm Polarization Linear Vertical Omnidirectional Antenna Polarization Vertical Diameter: 13. RID_Extract Chart1 RID_Extract Ormeau Road Belfast, Co. " Other names include the "tuned doublet" and "dipole with tuned feeders. I use this type of antenna extensively in the field with my little single band QRP rigs. As an aside, if your antenna is 300 or 450 ohms impedance, you can feed it with a 300 ohm or 450 ohm Balanced Ladder Line. Height is the key with horizontal dipole based antennas for DXing. For many of the bi-directional array designs, absolute precision of wire length is less important than with other types of antennas. Helically loading a beam or vertical has been extensively discussed in the ARRL Handbook, Antenna Handbook, Moxon's "HF Antennas For All Locations" for many, many years. front-to-rear, F/R), gain (in the forward direction), feedpoint impedance (hence, SWR bandwidth), and side-lobes These characteristics depend in a complex manner on design parameters such as spacing between the. (Plural: antennas. FONSI: Finding Of No Significant Impact. to Antenna Feedpoints using Baluns & Equal Length Cables. Propagation on 20 was good. 5' on 10 meters), the antenna shows a feedpoint impedance ranging from 175-j930 at the short end to 110-j640 at the long end. The 88′ EDZ was homebrewed and the Butternut is a commercial antenna, of course. • Can easily be. Single Wire Gain Antennas: About the only true single wire antenna that has 3db gain over a dipole is an EDZ, extended double zepp. pdf New Pig Rig – pg 2CW n Brains – pg 5SLQS 25 th – pg 6 10 meter EDZ – pg 8. Testing has concluded that the antenna works as well as the old EDZ. Basically, the Extended Double Zepp Antenna is a pair of 5/8 wave elements. It has a "reflector system" that consists of 3 nested reflectors, but not nested in the typical nested fashion. I use a half wave mobile whip with an adapter between its PL259 fitting and my rig, it works perfectly well with the BNC socket on the 817 but I also have a right angle. My Top Five Backyard Multi-Band Wire HF Antennas L. " This is essentially a dipole cut for the lowest frequency of interest and fed with 450 ohm. Hubble Space Telescope (HST) high gain antenna (HGA) deployment during STS-31. 1 dB over a dipole at optimum height. The L-Antenna : The B-Antenna : 17-15-12 and Simple : A Vertical Doublet for 30-10 Meters : Notes on Hatted Vertical Dipoles for 10 Meters : The M3KXZ 2-Element Vertical Phased Array : EDZ Beam Update : Feeding the EDZ : The Expanded Lazy-H : Curtains for the Extended Lazy-H : An Almost Universal HF Back-Up Antenna For the Antenna Farm That Has. Our club wants to do something beyond the typical inverted V or EDZ's , etc. VHF 5/8wave vertical antennas The 1/4-wavelength antenna presents its half-dipole current distribution curve, while the 5/8-wavelength antenna provides a half-EDZ distribution curve post 19 Apr 2020. The RG58 was at a 90 degree angle. Notice how the 4-bay with 12" elements gives less gain at the high end (after dropping like a rock. It has a new turret with floor, PAZ nuclear-blast protection and over-pressure NBC system, gamma ray detector, improved V-55 engine developing 580 horsepower (430 kW) (the engine output was boosted by increasing both pressure of injected fuel and degree of compression) and power-assisted. 1 - 40m dipole broadside gain patterns vs. This seems counter intuitive; how can an antenna that small (I stopped at 5 inches) intercept much signal? The answer is that the fields around an antenna extend beyond the wires for a sizable fraction of a wavelength. The Zepp, short for Zeppelin is any resonant antenna end-fed by ladder line. With these two, I can operate anywhere from 80 to 6 Meters with no problems. This will simulate the impedance of a vertical antenna. 98 KB Want a Good Microwave Antenna-Drink More Coffee. Vertical antenna for 20-15-10 m This is a vertical multiband antenna made up of several aerial elements lambda/4 length, feeded with just a coaxial cable in French. 2 dBi while a dipole is about 2dBi. Unless I'm truly missing something, I'd bet you could half the width making each bay a 1/2 wave dipole but preferably a folded dipole (better yet 3 wire) with no gain loss (shorter reflector. 1990-04-25. R-8 Vertical recently joined the mix and it's beingused most of the time now (20-meter EDZ) antennas, and the EZNEC models predict RE: [Elecraft] Folded Dipole Antennas You won't measure the 800 ohm resistor as it is fed thru a 1:16 balun. Lack of time has meant things have taken longer than expected. Addendum and Errata to the Second Reprint (8 November 2004). Yet, many amateurs still do not know much about it. Since EDZ and fracture zone have the potential of affecting the safety of the underground openings and repository performance, many studies were conducted to characterize the EDZ and fracture zone by different methods, such as the rock mass displacements and strain measurements, seismic refraction survey, seismic tomography and hydraulic test, etc. In addition, Brown's analysis of the ground currents surrounding the base of the vertical antenna also makes interesting reading (Ref 111). Home‎ > ‎. " Economy QRP Antenna 80-40-20-15 End Fed w End 6m-80m Fed HFedz HF Radio Ham antenna Antenna Antenna antenna Ham End HF 6m-80m Radio HFedz Fed Harvest Out 250B (3. , a turns ratio of about 1:7 to 1:8. With these two, I can operate anywhere from 80 to 6 Meters with no problems. So, each segment is about. 2,Radioactive Waste Repository Authority(CZ),UNIVERSITY OF EAST ANGLIA(UK),UNIVERSITEIT ANTWERPEN(BE),GALSON SCIENCES LIMITED(UK),Asociación para la Investigación y Desarrollo Industrial de los Recursos Naturales(ES),NATIONALE GENOSSENSCHAFT FUER DIE LAGERUNG RADIOAKTIVER ABFAELLE(CH),AGENCE NATIONALE POUR LA GESTION DES DECHETS RADIOACTIFS(FR),EMPRESA NACIONAL DE. 1 - 40m dipole broadside gain patterns vs. You can also L shape it or zig zag it or slope it if you are limited on room. Also the comment that the feedline matcher can change the radiation pattern is just wrong. The next antenna modeled was a 20 meter full wave vertical rectangular loop 8 feet high and 28 feet wide fed at the center of the lower side. Calculator antennas: i1wqrlinkradio. Signals sounds louder and cleaner and are at least 5 to 7 S-units stronger compared to that produced by the Cobwebb and Vertical which are both omni-directional and at the same height above ground. Related: dipole antenna end fed hf antenna hf antenna shortwave antenna antenna analyzer 9:1 unun g5rv swl antenna qrp end fed dipole end fed wire antenna elecraft Refine more Format. Click the “Source/Load” tab. piece of 2" diameter irrigation pipe and a short piece of PVC pipe. See more ideas about Ham radio antenna, Ham radio and Ham. ) antennae [An "tEn i] a plural of antenna W. I also have installed an Extended Double Zepp (EDZ) cut for 20 meters. So let's imagine an EDZ for 40m. Harold hi, i’m ik1mnj Henry, I read your interesting articles on the open wire line, I fell in love with this type of power antennas to the point that I removed all coaxial cables that fed all my antennas 6 m. antic ["An tIk] 1. ##### هشدار ##### به تاریخ ارسال مطالب دقت فرمایید. Its 40M Antenna Test Time! With the cancellation of 3Y0Z, I went out back and took down my two temporary antennas that I had up for Bouvet - the 2 element 20M yagi and the 40M doublet - which is a 17M EDZ. Most of the geotechnical. 2470 for more information about this 2013 Chevrolet Silverado 1500 LT Silverado 1500 - Stock #B30938A. J Pole variant. The verticals were extremely competitive with the EDZ and as the sun moved West the verticals were 3 S units louder to Ca. I set it up to aim NE/SW and working into Europe and Hawaii and SoCal sure is easier now. The Bobtail is a simple three-element vertical broadside-array with a unique feed system that produces. Anything that is 1. Tomorrow I will also re-arrange my station a bit. Since EDZ and fracture zone have the potential of affecting the safety of the underground openings and repository performance, many studies were conducted to characterize the EDZ and fracture zone by different methods, such as the rock mass displacements and strain measurements, seismic refraction survey, seismic tomography and hydraulic test, etc. It is not resonant, the vertical is operated midway between the first parallel resonance and the second series resonance, and it is highly reactive when fed at the base. May 11, 2015 - Long vertical slots multiple cables and antennas will probably look terrible sticking through the top. 27 kg) 125 mph (200 km/h) 37 lb. The concept of creating and aligning antenna currents is introduced. My antennas are similarly modest. Extended double zepp antenna youtube. The part ADO-15288103 has an additional core charge of $40. PAR Electronics, Inc. Vertical and Horizontal Spread Model. Unfollow end fed antenna to stop getting updates on your eBay Feed. The verticals had at least 4 to 5 S unit rejection in the back direction, not fair to the Zepp with gain but showed at least that much with the unity gain dipole. Elk Antennas 2m/440 5-element log periodic beam seen above the EDZ. I am trying to see what i can come up with for a antenna that will fit for both uses. On other bands it is less, 40 M for instance where the radiator is less than 1/4 wave. For many of the bi-directional array designs, absolute precision of wire length is less important than with other types of antennas. Helically loading a beam or vertical has been extensively discussed in the ARRL Handbook, Antenna Handbook, Moxon's "HF Antennas For All Locations" for many, many years. I say fantastic only because when you compare the height requirements and maintenance requirements, the phased array has tremendous bang for the buck. A portable 10/20/40 mt vertical antenna A portable vertical antenna for 10 to 40 meters, designed for mobile operations can be used in a car as seen in pictures. This is what I like about antenna building, always more to learn, have a edz up vertical at 75 feet to the top, still trying to get her tuned on open line, as it is about 140 feet of feeder, have had it working, but it is not getting out like it should. Today i soldered up a PCB based antenna, which went well. So let's proceed to the Mini-MOXON project at W7XA Linear loading (making a folded back section) is somewhat mechanically complex and can add significantly. The lower frequency GPR antenna (centered around ~ 1,500 MHz) was found to be most useful in identifying individual fractures, whereas the higher frequency antenna (centered around ~ 2,500 MHz) provided EDZ dimension estimates more consistent with those provided by other methods (as shown in Fig. So we may be content in calling the EDZ an off-resonance antenna. The impedance--both the resistive and reactive components--falls off more rapidly as the length. The antenna is designed to be fed with 50 or 75 Ohm Coax Cable of most any length with a Balun. This seems counter intuitive; how can an antenna that small (I stopped at 5 inches) intercept much signal? The answer is that the fields around an antenna extend beyond the wires for a sizable fraction of a wavelength. Adding a sleeve, I would expect that to become more like an ordinary dipole on 20m. Because the antenna is basically 1. In this tab you will define one of the segments on your wire to be a source for the antenna. Moreover, we may combine both end-fire and broadside techniques into single arrays. The physical length of any HF antenna is critical to achieving resonance and good performance on a particular band. The 40M Extended Double Zepp By Jim Streible, K4DLI There were many new and somewhat unfamiliar antennas used at this year's NFARL Field Day. Made from a 20-ft. Basically, the Extended Double Zepp Antenna is a pair of 5/8 wave elements. It is considered as an excellent, easy to build wire antenna that produces real usable gain with a broadside pattern and easy to match with 50 ohm coax. it has a good gain and if high enough can be a great antenna on the HF bands. Soapbox: Varying Doppler on both bands for both the early and late runs. One reason is that there are 2 vertical lobes in the radiation pattern, and the null between them gets deeper with improved ground (see this previous article for the pattern). Even allowing for the losses in such systems, the vertical EDZ may be worth considering for some applications. antenna installation and your station/working conditions. 134 feet high at top. 2470 for more information about this 2013 Chevrolet Silverado 1500 LT Silverado 1500 - Stock #B30938A. The most productive bands were 20 and 40 meters CW with approximately 150 QSO's there. Your assigned professional is Marshall Duskes who is standing by to help with tech specs, pricing and warranty information. This page was copied November 7th, 2000 from: http://www. ) I made a tall aluminum 2 meter J-pole "extended double Zepp" (EDZ) antenna in northern New Mexico decades ago. Jan 7, 2017 - 11 m Band Extended Double Zeppelin 'Zepp' (EDZ) antenna centred at 27. 2 meter ssb yagi antenna 2 meter slingshot re-visited design a j pole for any band easy 2 meter ground plane + 6 meter edz signal squirter 6 meter 5/8 wave vertical 3 element beam for 6 another 6 meter loop the hentenna re-visited another 6 m j pole design. Antrim BT7 1EB 0845 247 0000 BPA PSU Talk Ltd 01698-305285 18 Worsley Grange Kemnal Road Chislehurst Kent BR7 6NL. ANTENNA VERTICAL AMATEUR RADIO HAM RADIO. It seems all the trees here have a height limit, so you are pretty much on your own if you want to get over 25-30 feet in the air. Homebrew 2m 144 MHz vertical 1/2 wave Coaxial Dipole antenna for QTH, SOTA & portable field operations/WICEN exercises. It can be fed with ladder line from the center insulator to tuner or it can use an impedance. The vertical beam-width matches what you expect from an 8 dBi antenna. The J Pole is a variation on the EFZ where the nominal half wave radiator is rotated to vertical to achieve vertical polarisation. One rule-of-thumb with antennas is that one which is optimized for one band, is superior to a multiband antenna, all other things being equal. 5+ dB Loss in RF Combiner by using an Optimized Vertical Interconnection Harness. I attached 88 ft. antenna at or above the height of the top for a good distance before dropping it down. SeaSat (also referred to as SeaSat-A prior to launch and SeaSat-1 after launch) is a pioneering Earth observation experimental mission of NASA/JPL; the first ever civilian spaceborne imaging radar instrument (SAR) was flown on SeaSat in 1978. Here is the current balun at the bottom of the ladder line on the two band edz Between you and me ,I go back to my work on the "fan Vertical "and apply "W5ZO's Law", that if the feed point impedance is 50 to 75 ohms, and the rf can find a resonant radiator (or proper multiple of one), it doesn't matter how many radiators you have on the antenna , all of the rf goes to that resonator. 6 dBi, or 14. VERTICAL ANTENNAS K4TR 160 METER VERTICAL "T" ANTENNA (MADE TO ORDER) This Antenna Is Taken From A Time Proven Design. Two profiles (1 and 2) are in the Porphyroid and one in the slate (3). You will see from the antenna patterns the secondary lobes beginning to form. one of the sensitive feelers found in pairs on the heads of insects and some sea creatures. Anything that is 1. Thanks to a interesting article about the so called Half Extended Double Zepp (HEDZ) by W5DXP we managed to get our EDZ working om both 80m and 160m. The lesson from the Generation 1 antenna experiment is: if you are an attic antenna farmer, build antennas that have self contained ground or counterpoise structures. 5mm With TNC plug (male pin) Colour: black. 25 wl long: an extended double Zepp (EDZ). EDZ vertical Good to hear from you again Homer. Connect the antenna analyzer to the red wire BNC connector. I like the idea of a linked di-pole but that's not working to work at my apartment. Of course, K1ZZ was overpowering, as always, but his signal is the exception. The 19-acre site will have other antennas springing up as time permits. I intended to design my homebrew antenna tuner to suit my specific antenna system situation, instead of using a more "universal" design which is a "one-size-fits-all" device normally intended to be useful in "most" circumstances, but generally only with reasonably well-designed HF antennas. 5 V, Zener Current 5 mA, Power 150 mW, Storage Temperature -55 to 150 °C. In this tab you will define one of the segments on your wire to be a source for the antenna. This antenna is basically two 5/8 wave antennas end to end. ) antennae [An "tEn i] a plural of antenna W. Therefore, the radius is < 1/10 of segment length. The larger the wire, the wider the bandwidth. The Extended Double Zepp (EDZ, sometimes also known as Double Extended Zepp or DEZ) is the same, but the wires are now 5/8 wavelength instead of 1/2. 99 Buy It Now 30d 3h 47m 44s , $7. Pick an antenna. Comparisons Between Ground Surface and Elevated Radials" « Reply #17 on: June 13, 2011, 08:46:27 PM » If you look at buried radials as a part of the circuit between a Marconi vertical and its mirror at the ground, in many areas a foot of earth acts as a lossy resistance in the buried radial circuit, giving elevated radials an advantage. Extended double zepp antenna youtube. one of the sensitive feelers found in pairs on the heads of insects and some sea creatures. Autopilot, ADS-B Out Compliant, IFR Certified, Single Pilot Certified, 14 Seat Passenger & Crew and Much More!. The null is high, at about 35 ° elevation, but still impacts gain at somewhat lower elevations. one of the sensitive feelers found in pairs on the heads of insects and some sea creatures. Extended Double Zepp NVIS Antenna Calculator The measurements below are for building a Extended Double Zepp Near Vertical Incident Skywave (NVIS) Antenna. If I remember right, a 0. Not Yet Reviewed. A rig should always have a DC ground, of course. Chart for determining counterpoise lengths for 160 meter vertical antennas based on the formula 240/f(MHz). End Fed Vertical Antenna Variations. Constructed From durable,UV Resistant Parallel Feed Line(300 Ohm) And #14 Double Coated Stranded,Insulated COPPER Wire, This Antenna Performs Extremely Well On 160 Meters Because Of its Low Angle Of Radiation. With your original doublet sized as a G5RV, it probably had a narrow EDZ style pattern on 20m before the mods. The Extended Double Zeppelin 'Zepp' (EDZ) is a copper wire antenna and is probably the most successful wire antenna ever developed. 98 KB Want a Good Microwave Antenna-Drink More Coffee. antenna installation and your station/working conditions. That way the system does not depend on this ground structure for some meaningful RF performance. Moreover, we may combine both end-fire and broadside techniques into single arrays. Total Products : 5,131,811 Product Name. 2017 Nov 29 - This Pin was discovered by Atunsr123 Atunsr12. 160 Inverted L Antenna 165 ft. 2) the vertical equation of motion takes the form do; dt 1 8p p 8z-= ----g (1. The ASC can help you to calculate the staking distance for your antenna stack arrays and can be used only for antennas with boom length at least 2 wavelength. I like the idea of a linked di-pole but that's not working to work at my apartment. geological maps and vertical sections are prepared and project costs are calculated, usually with an accuracy of ± 20%. We expect about 3 dB gain over a dipole from an EDZ, and if we compare the 40-meter and 17-meter gain figures, we can see that we get it. Rating: 50%. 2:1 on 15, 20 and 40 meters. It seems all the trees here have a height limit, so you are pretty much on your own if you want to get over 25-30 feet in the air. 902-928 MHz Dual-Polarised Sector Panel Wireless LAN Antenna (Model: A-TA-926VH-8-120) Description The A-TA-926VH-8-120 is a dual polarised 120 degree sectoral antenna. NIDXA-Sponsored 2018 CQ DX Marathon Plaque Winner K2JL Hello DX Friends! I just wanted to thank you for sponsoring the 2018 CQ DX Marathon Formula Class plaque! With my simple setup of 100w and a few wire antennas (1 Carolina Windom and 3 EDZ antennas plus a DXE 43' vertical), I was able to take home first place in 2018. Longer elements, such as the 1. Extended Double Zepp NVIS Antenna Calculator The measurements below are for building a Extended Double Zepp Near Vertical Incident Skywave (NVIS) Antenna. tomorrow i will be ordering a roll of solder wick and some replacement SMA connectors to try. CLEMENT WOOD Revised by. An EDZ is not a secret. Hello DX Friends! I just wanted to thank you for sponsoring the 2018 CQ DX Marathon Formula Class plaque! With my simple setup of 100w and a few wire antennas (1 Carolina Windom and 3 EDZ antennas plus a DXE 43' vertical), I was able to take home first place in 2018. Antennas are fed with TV RG-6Q Coax. HF Portable/Apartment Antenna. I built this highly modified 5/8 wavelength vertical antenna on Sunday, 26 August 2013, and was pleasantly surprised by its performance, considering the generally poor. It can be fed with ladder line from the center insulator to tuner or it can use an impedance. Made from a 20-ft. The vertical had outperformed my old wire antenna, but the HFedz outperforms my vertical. The TA-5204-8-120 is a vertically polarized 120 degree sectoral antenna. Propagation on 20 was good. • 2 - TCAS Directional Antennas • 2 - RCZ851E Comm/Xpdr Unit and • 2 - EDZ-816 EFIS Display • 1 - EDZ-816 MFD Display or • 2 - DV-910 VSI/TRA Display The TCAS 2000 system (RA/TAs) may be displayed on the Honeywell EFIS configured with Honeywell symbol generators P/N 7011674-526 for the EHSI and P/N 7011675-526. Dahlberg N7AGK Editors note: The author of this project arrived at these plans by experimentation so this antenna should be considered an experimental project by the builder. If you want to research it further look up extended double zepp antenna and 5/8 wave vertical antennas for AM broadcast and 2 meter ham band (which are 1/2 of the EDZ). Free essays, homework help, flashcards, research papers, book reports, term papers, history, science, politics. Notice the difference in the pattern of this antenna and the curve for the dipole in figure 2. The M4 bowtie antenna was named for mclapp who was an active member on DHC and AVS and did a lot of modeling and range tests on the 4-bay bowtie antenna. Learning Unit 5 HF Wire Antennas with Gain Objectives and Overview: Take the student to the next step beyond the half-wave dipole and introduce wire antennas with enhanced directivity and gain. No category PDF. MicroVert マイクロバート; Delta Loop Antenna デルタループ アンテナ Zepp Antenna ツェップ アンテナ 430MHz. Rig = K3 @ 5W; ANT = EDZ @ 55ft. Regards Steve. 20 Meter "Vertical Zepp Dipole" Antenna by Carl H. It is often confused and called a variety of names, the most common is probably "Zepp," or "center-fed Zepp. 6 Meter 5/8 EDZ Signal Squirter by N4UJW. I use an old favorite multiband antenna on forty and eighty meters - the center-fed inverted V dipole, fed with true open wire feedline -sometimes known as "tuned feeders". Vertical Antennas Misc Antennas; 160m Projects Receivers Pre-Amplifiers Transceivers Transmitters Amplifiers 6m Projects - Directional Antennas. 6 dBi and SWR (300-ohms) under 1. A 160 meter vertical antenna that can be raised and lowered by one person. 28 times this (936) = 1198 rounded off for the number to use in our formula = 1198/freqmhz. RID_Extract Chart1 RID_Extract Ormeau Road Belfast, Co. The antenna generally has a high impedance (several thousand ohm) on most bands. Most of my operating is with a Butternut HF-6V multi-band vertical. The feed line and its capacity to carry common mode current are relevant. Not if the feedline isn't part of the antenna and doesn't radiate. This antenna can be installed as three different types of antenna. Five-eighth wave vertical. Core Charge. The Wire Size can range from 16 AWG to 12 AWG. Cebik, W4RNL (SK) The antenna owes its name to a certain visual similarity that some kinds bear to the "movable, segmented organ of sensation on the head of insects, myriapods, and crustaceans. Overall, we believe the 2 ele vertical array over salt water is a better all around antenna than a full size 3 ele 80m Yagi at 200′! The next graph examines the take off angles on 10m to Europe. ' An EDZ' built for 20 meters is about 85' long. Antenna tuner, matching network, matchbox, transmatch, antenna tuning unit (ATU), antenna coupler, and feedline coupler are all equivalent names for a device connected between a radio transmitter and its antenna, to improve power transfer between them by matching the specified load impedance of the radio to the combined input impedance of the feedline and the antenna. The larger the wire, the wider the bandwidth. (Plural: antennas. O Box 645 Glenville, NC 28736 Voice: 828-743-1338 Fax: 866-304-8479. If you want to research it further look up extended double zepp antenna and 5/8 wave vertical antennas for AM broadcast and 2 meter ham band (which are 1/2 of the EDZ). I am trying to see what i can come up with for a antenna that will fit for both uses. Wire Antennas: The Good, Bad, and The Ugly: bob raynor (N4JTE) on October 6, 2007 View comments about this article! Wire Antennas: The Good, Bad, and The Ugly: The following notes are from my experiences during the last 5 years of intense experiments with various wire configurations for the 80, 40 and 20 meter bands during the solar minimum. Our club wants to do something beyond the typical inverted V or EDZ's , etc. I love the 2x5/8 wavelength "extended double Zepp" antenna design - like the CP-22 and the Diamond X300a. Chart for determining counterpoise lengths for 160 meter vertical antennas based on the formula 240/f(MHz). "The antenna above produces an overall gain of 14. 1 By contrast, everyone knows about the family of antennas related to the half-wavelength dipole: the quarter-wavelength ground plane, the 2-, 3-, and more-element Yagis, the ZL-Special. Tree vertical- can be very tall, but will interact with the tree if up against it. 5B can be seen below. 500 MHz: Radiation pattern and mounting details. One of these was the one for the CW station. Portable End-Fed 160-10 Meters Dipole Antenna George on 24th Feb 2020 This is the 4th or 5th product that I have purchased 4 or 5 items from ni4l. Antenna Systems. or EDZ's , etc. 20 Meter "Vertical Zepp Dipole" Antenna by Carl H. NIDXA-Sponsored 2018 CQ DX Marathon Plaque Winner K2JL Hello DX Friends! I just wanted to thank you for sponsoring the 2018 CQ DX Marathon Formula Class plaque! With my simple setup of 100w and a few wire antennas (1 Carolina Windom and 3 EDZ antennas plus a DXE 43' vertical), I was able to take home first place in 2018. My Favorite 40m "DX" Antenna NOTE: This is not a plug-n-play antenna. Here is the current balun at the bottom of the ladder line on the two band edz Between you and me ,I go back to my work on the "fan Vertical "and apply "W5ZO's Law", that if the feed point impedance is 50 to 75 ohms, and the rf can find a resonant radiator (or proper multiple of one), it doesn't matter how many radiators you have on the antenna , all of the rf goes to that resonator. So far received 31 votes for a total score of 6. Today i soldered up a PCB based antenna, which went well. Astfel a apărut antena Double Zeppelin (DZ), Extended Double Zeppelin (EDZ), Vertical Zeppelin (VZ), Extended Vertical Zeppelin (EVZ) cunoscută şi sub denumirea de J-pole, DL7AB, OH1NE, etc. 14 The full Monty Acronyms, Jargon, Abbreviations, and Rubbish Aberystwyth, Wales Tuesday, 10 June 2008 AJAR. Both antennas have better DX potential than a quarterwave vertical. Our club wants to do something beyond the typical inverted V or EDZ's , etc. TTAF: 14289. In a nutshell, each antenna is an end fed (high impedance) wire of at least one-half wavelength and configured as a vertical dipole, inverted ground plane, half square, or bobtail curtain. In the general case they may not be exactly balanced, and in this case by substituting the pressure and gravity forces in the vertical component of Eq. I have a Icom IC706 and a AH4, Not sure the bands i want to work yet. 6 meter zip cord edz 50 ohm feed 6 meter halo loop 6 meter edz signal squirter 6 meter 5/8 wave vertical 3 element beam for 6 another 6 meter loop the hentenna re-visited another 6 m j pole design one element beam 20 thru 6! n3sdo "j" beam 2 meter train track antenna 2 meter ultra cheap antenna 440 sling shot slim jim antenna 300 ohm twin lead. I am trying to see what i can come up with for a antenna that will fit for both uses. Telex Communications' new V-2 antenna is a 2-meter extended double zepp vertical consisting of two stacked 5/8-wave sections decoupled inside the antenna for complete weather-proofing. 5+ dB Loss in RF Combiner by using an Optimized Vertical Interconnection Harness. HFedz End Fed 10m-160m HF antenna (200W) Ham Radio Antenna $69. Honeywell Aerospace Electric Power Systems, Honeywell Aerospace Engine (Suzhou) Co. Even its vertical cousin, the Extended Single Zepp, seems to have changed its name to the 5/8-wavelength ground plane to avoid identification with the EDZ. Also the comment that the feedline matcher can change the radiation pattern is just wrong. Acronyms, Jargon, Abbreviations, and Rubbish. Best of all, the EDZ beam produces patterns that look like faces with interesting ears -- antenna modeling is full of surprises, and not all of them are technical. • Can easily be. An EDZ is just what others would call a "five-eighths wavelength vertical", but here balanced as a dipole, not over ground as a vertical. One of these was the one for the CW station. Materials: 7m length of 50 ohm RG58AU/CU Mil Spec coax 1 * 50 ohm BNC connector 2 * 1 metre lengths of 27 mm water pipe (Bunnings) 1 * End Cap 2 * T-piece connectors 1 * […]. 500 MHz: Radiation pattern and mounting details. This will simulate the impedance of a vertical antenna. This Is An. Whatever your reason for having a ham radio wire antenna, whether its your wife, neighbors, HOA ( I hate those), small yard, your renting, your in an apartment or safety reasons or any other reason. The term comes from the appearance of antennas arrayed above one another in the vertical plane. If one should feel it necessary, a 1:1 Balun would do the job. While there are antennas which are more complex than an inverted vee, there are still several issues to be considered. Addendum and Errata to the Second Reprint (8 November 2004). An automatic tuner should tune this antenna with no problem. range of reasonable lengths (about 41. These can be really long but if you have the room and tall enough supports this antenna will give you the same gain as a two element beam in two opposite directions. net/~jimhenry/esp/vortaroj/esp_angl. Used 2013 Chevrolet Silverado 1500 LT Silverado 1500 Victory Red near Salisbury, MD at Preston Motor - Call us now at 877. With these two, I can operate anywhere from 80 to 6 Meters with no problems. Telex Communications' new V-2 antenna is a 2-meter extended double zepp vertical consisting of two stacked 5/8-wave sections decoupled inside the antenna for complete weather-proofing. yuyao edz con inv & dev co ltd b2112 xs1923401522 yichang high-tech inv dev co ltd n2112 xs1881793399 zhengzhou metro group co ltd b2112 xs1918137586 xinhu (bvi) 2018 holding co ltd n2112 xs1917914282 global strategic group limited china eco-farming limited bnp paribas-hkex ec2012a nl0013268782 bnp paribas-geely automobi ec2008a nl0013268790. RID_Extract Chart1 RID_Extract Ormeau Road Belfast, Co. EZNEC The use of W7EL's EZNEC comes with two calculating engines, NEC2 and NEC2D. (Some Comets too - like the 333. 160 Meter Antennas. Or you can mail donations to Henry Shivley at P. I am trying to see what i can come up with for a antenna that will fit for both uses. Propeller Overhauled 7th ! Jan. For 4x vertical array up to 10. [TowerTalk] Insights on 30m EDZ - nowhere near what I thought, Ken Bauer via TowerTalk, 18:11 February 02, 2020 Re: [TowerTalk] HyGain DCU-3 Firmware Upgrrade? , Steve Colello , 09:56. The EDZ dipole is a powerful performer in its preferred directions and could be considered in your use of any dipole. One rule-of-thumb with antennas is that one which is optimized for one band, is superior to a multiband antenna, all other things being equal. This Is An. When the equation (1) is to be applied to the vertical portion of the antenna, we shall call l = z', (7) where z' = vertical distance from jthe ground of the point P' on the antenna. org The coax needs to come away from the vertical at roughly 45° to minimize the coupling to the lower antenna wire. Like our earlier horizontal bi-directional arrays, the sample uses AWG #12 copper wire and is 1 wavelength above average ground. NIDXA-Sponsored 2018 CQ DX Marathon Plaque Winner K2JL Hello DX Friends! I just wanted to thank you for sponsoring the 2018 CQ DX Marathon Formula Class plaque! With my simple setup of 100w and a few wire antennas (1 Carolina Windom and 3 EDZ antennas plus a DXE 43' vertical), I was able to take home first place in 2018. Helically loading a beam or vertical has been extensively discussed in the ARRL Handbook, Antenna Handbook, Moxon's "HF Antennas For All Locations" for many, many years. top part of the antenna is bent over without any significant change in the magnitude of the current at the various points. Antenna gain pattern shapes with respect to antenna height. Elaine Mattson And Associates Phone: 425-828-8811 EDMONDS WA 98020. HF Portable/Apartment Antenna. The larger the wire, the wider the bandwidth. The radiator is 45 feet of genuine #14 black polyethylene coated Flex-Weave wire. (Some Comets too - like the 333. You can write a book review and share your experiences. Search this site. The EDZ fits nicely. As an aside, if your antenna is 300 or 450 ohms impedance, you can feed it with a 300 ohm or 450 ohm Balanced Ladder Line. If you have an antenna analyzer, you can test the antenna at your workbench to check that everything is properly connected before going out into the field. The grid point data form the SWS world maps of foF2, there are 576 maps, for two ionosheric levels (T=0, T=100), 12 months, and 24 hours. The tricky part of this antenna is now the length of the feeder. [TowerTalk] Insights on 30m EDZ - nowhere near what I thought, Ken Bauer via TowerTalk, 18:11 February 02, 2020 Re: [TowerTalk] HyGain DCU-3 Firmware Upgrrade? , Steve Colello , 09:56. An automatic tuner should tune this antenna with no problem. 5 GHz antenna was addressed into contact with clean, dry rock surfaces to detect changes of electrical resistivity in relation with variation of rock porosity. Figure 1 The Balun is hung at a right angle A paracord is attached to Balun in the opposite direction from the coax to oppose the pull of the coax and is needed to. It is inversely proportional to the frequency which means the wave with higher frequency will have shorter wavelength. For many of the bi-directional array designs, absolute precision of wire length is less important than with other types of antennas. 2 dBi while a dipole is about 2dBi. Page 2 of 2 - BEST OF the Binocular Forum - Start Here - posted in Binoculars: Depth of Field is the range of objects from foreground to background seen in focus at once without moving the focus dial. Antenna Systems. Figure 3 is the radiation pattern of and 'Extended Double Zepp' or 'EDZ. If used as a vertical antenna then it doesn't need an extensive set of earth radials to be efficient. Whatever your reason for having a ham radio wire antenna, whether its your wife, neighbors, HOA ( I hate those), small yard, your renting, your in an apartment or safety reasons or any other reason. Adding a sleeve, I would expect that to become more like an ordinary dipole on 20m. S/N: 152-80862. This calculator will help you to calculate the different wavelength of antennas based on the frequency. The ARRL Antenna book list VF for different lines. 6 Meter EDZ Signal Squirter. That series of reports was converted with some modifications into a series of seven articles in QEX magazine. com/4sqrpNewsLetter/201301. BOGUS L#A U R E. 20 Meter "Vertical Zepp Dipole" Antenna by Carl H. End Fed Vertical Antenna Variations. The EDZ fits nicely. 00 Honeywellsperryrca Ap-4001 Antenna Pedestal Maint Manual. Coax feed 6 meter extended double zepp zip cord antenna. The N6BT DXU-32 … I have had two occasions where I was able to test my fantastic 40M phased vertical array against other antennas. Band seemed to be in good shape here in FL. best top 10 sgm f86 brands and get free shipping. _Lnt rOMELETl RHYMW6. Here we have collected some links to building instructions for 11m antennas on the Internet. A terrific lecturer, LB often delivers forums on antennas and related subjects at Hamfests all over the South. 25 wl long: an extended double Zepp (EDZ). 7 feet of 540 ohm balanced feed line prouduces a low SWR on both 20 and 15 meters. Even a half-wave vertical antenna will exhibit a low vertical angle of at least 20 degrees to the horizon. The 88′ EDZ was homebrewed and the Butternut is a commercial antenna, of course. There are also ham radio-oriented models with an additional vertical element that will let them operate down … See on hackaday. Right folks, it's been a while since I embarked on my tri-band 20, 17, and 15m Moxon project for the beach. pdf), Text File (. On the EDZ antenna I put up an EDZ for 20M (2x-5/8 wave center fed) that showed definate gain in it's broadside directions. Even its vertical cousin, the Extended Single Zepp, seems to have changed its name to the 5/8-wavelength ground plane to avoid identification with the EDZ. My goal was to test how well two different antennas that I made for field use compare to my base station antenna. This thread, once you read down into it. This is significant enough to try it. is an industry leader in developing innovative fire protection systems that help stop the spread of fire, smoke, and hot gases. The 1/2-wave 80-meter doublet with ladder line all the way to a 1:1 bifilar choke/balun in or near the tuner is a much better antenna for 80-10, provided you adjust the ladder line length to avoid the voltage and current anti-nodes (i. Connect the antenna analyzer to the red wire BNC connector. 5 : 1 max Gain:3dBi Impedance 50 Ohm Polarization Linear Vertical Omnidirectional Antenna Polarization Vertical Diameter: 13. The Columbia Amateur Radio Club Presents. Yagi-Uda antenna gain considerations. Cheaper Wire For Ham Antenna Projects. My Loop Antenna November 20, 2013 2 Outline • Brief History • Characteristics of Small Loop Antennas for HF • My Loop for 40m -15m • Receive/Transmit Properties of Elect. The EDZ dipole is a powerful performer in its preferred directions and could be considered in your use of any dipole. I had a few minutes before the contest started, so made 2 dozen quick contacts on 20 using my Pacificon Special antenna. The 40M Extended Double Zepp By Jim Streible, K4DLI There were many new and somewhat unfamiliar antennas used at this year's NFARL Field Day. It's unclear what Diamond Antenna was thinking when designing their promotional information. Chart for determining counterpoise lengths for 160 meter vertical antennas based on the formula 240/f(MHz). 8 Mhz (lower sideband voice), your antenna length would be 468/3. Lots of activity was heard around 7030 kHz, but that included few if any contest stations. These can be really long but if you have the room and tall enough supports this antenna will give you the same gain as a two element beam in two opposite directions. This antenna exhibits more gain than the Fig IA antenna because lengthening the elements to 5/8 has the same effect as spacing the element ends of two collinear half-wave elements 0. Its 40M Antenna Test Time! With the cancellation of 3Y0Z, I went out back and took down my two temporary antennas that I had up for Bouvet - the 2 element 20M yagi and the 40M doublet - which is a 17M EDZ. Description. I see you are still doing way cool antenna stuff. The vertical had outperformed my old wire antenna, but the HFedz outperforms my vertical. The term comes from the appearance of antennas arrayed above one another in the vertical plane. My success with using EZNEC to accurately tell what the gain will be has always eluded me. 1 By contrast, everyone knows about the family of antennas related to the half-wavelength dipole: the quarter-wavelength ground plane, the 2-, 3-, and more-element Yagis, the ZL-Special. The peak current at a position well above the top of the short antenna is said to give the longer monopole a lower-angle of radiation and additional gain. The dipole has just one vertical lobe, peaking at about 30 °. The antenna consists of a printed dipole array enclosed in an aluminum base with a UV stabilized radome for superior weatherability. Some users, especially those who employ the antenna as a simple center-fed long wire on bands other than the design band, simply use parallel feedline and an ATU. It has a new turret with floor, PAZ nuclear-blast protection and over-pressure NBC system, gamma ray detector, improved V-55 engine developing 580 horsepower (430 kW) (the engine output was boosted by increasing both pressure of injected fuel and degree of compression) and power-assisted. HF Portable/Apartment Antenna.