ANTENNA 40M BAND ( 7Mhz) HF ANTENNA
Many antennas function because of common mode currents, rather than working in spite of them. Two popular examples are CFA and EH antennas. Another recent example, appearing in Antennex's compact antenna articles, is a thick stub "vertical" with no counterpoise. All of these antennas become significantly poorer radiators if common-mode currents.
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This is my homebrew EH antenna for 40M band.This antenna has the problem with a strong returning RF in to coax. This is the reason why i never tryed this ant.
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The theory of EH antennas is discussed on several web sites, but these provide contradictory conclusions on the effectiveness of the EH antenna. Here is a simple practical design developed for experimentation to allow you to draw your own conclusions. Supplies 1 Grey PVC Tube (drain pipe) do not use Black PVC as this is doped with carbon
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A PDF document describing my test of a 40m commercial EH-ANTENNA. Why I chose that name is explained in the document. This test was conducted in December of 2002. Almost A Test EH-Antenna.pdf PDF-Dokument [237.1 KB] THE OTHER SIDE OF THE STORY "The EH-ANTENNA does not work. PERIOD!"
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It's a multi-band 80-6 meter wire dipole. ZS6BKW started with the G5RV and then conducted extensive computer modeling to increase the gain, flatten the SWR a bit, and smooth out the lobes. It's also about 10 feet shorter than an equivalent G5RV. The antenna must be fed with 39 feet of 450 ohm ladder line and also must have at least 70 feet of.
EH Antenna MK II Vert
Main category is EH that is about EH Antennas. This link has been on our site since Thursday Oct 23 2008, and it has been clicked on 2018 times. So far it received 5 votes for a total score of 7.40/10. Discover more websites like this one in these categories: Antennas/40M - 40 meter band antennas projects ; Antennas/EH - EH Antennas
Antenna EH for 27 MHz
Antennas/EH - EH Antennas ; Antennas/40M - 40 meter band antennas projects ; Antennas/20M - 20 meters band antennas Rate this resource. it received 18 votes for a total score of 7.43/10 The scale is 1 - 10, with 1 being poor and 10 being excellent. Webmaster, add a Remote rating.
80m M0MCX Amateur Radio Ham Radio
antennas is the tubular dipole which has been named the EH antenna. Here we describe a typical antenna assemblies made up for 20 and 40 metres. 40 Metre Dipole (Figures redrawn for AR Journal by Bill Roper VK3BR) Introduction An excellent way to start on the EH Antenna would be to just read the material by Ted Hart (W5QJR) on
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80 Meters EH Antenna plan - Building this antenna is very easy and inexpensive, 6 Foot EH Antenna. 10 Meters EH Antenna - PDF file with plans to build an eh antenna for 10 meters band, by lloy. VK5BR 20-40 Metre EH Antennas - How to construct a very small but efficient Antenna with PVC Plumbing. EH antenna for 160 mt by Iz7ath - EH.
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Antennas/EH - EH Antennas ; Antennas/40M - 40 meter band antennas projects Rate this resource. it received 2 votes for a total score of 10.00/10 The scale is 1 - 10, with 1 being poor and 10 being excellent. Webmaster, add a Remote rating. Report this link If you find this.
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EH STAR antenna for 40m About 3 years ago I was looking for a mono-band 80m antenna and came across a schematic for an EH vertical antenna designed by Ted Hart, W5QJR. It looked interesting so I bought a second hand EH Venus and stuck it at the end of the garden about 4 feet above ground level. I had an A/B antenna switch in the
Disccone_EH_for_40m
VK5BR 20-40 Metre EH Antennas How to construct a very small but efficient Antenna with PVC Plumbing tube and discarded fruit cans. - Just the thing to fit in a small space such as the house attic Wireman-J-Poles for 2m-40m J-Poles with Wireman-cables for the quarterwave matching section, working on VHF and HF bands G5RV Beam G5RV 40m Beam Antenna.
EH Antenna MK II Vert
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EH antennas
40m Receiver EH Antenna - G8ODE. v. When Tuned to 7.050MHz. SWR . 1.5:1 @ 7.036 & 7.077 MHz SWR 2. 0:1 @ 7.001 & 7.084 MHz Aluminium Cylinders 50mm long. - The Plastic Marley 50mm diam drain pipe has served really well as a test-bed. The design above is the third EH antenna tested, a has proved to be the easiest to tune. Graphics G8ODE 15.
EH Antenna MK II Vert
One outcome of that thinking in small efficient antennas is the tubular dipole which has been named the EH antenna. Here we describe a typical antenna assemblies made up for 20 and 40 metres. Download complete article on PDF File: vk5br eh antenna for 20 40m. Required fields are marked.
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EH STAR antenna for 40m. About 3 years ago I was looking for a mono-band 80m antenna and came across a schematic for an EH vertical antenna designed by Ted Hart, W5QJR. It looked interesting so I bought a second hand EH Venus and stuck it at the end of the garden about 4 feet above ground level.