HF Antenna: was G5RV

[Edward R Cole]

I have found that resonant antennas work best for me: on HF or VHF+.

I have a 80/40m dual inverted-V with apex at 45-feet and 80m ends at
22-feet that works very well out to 800-miles (so I would consider it
good NVIS and moderately good for longer distance). It is fed with a
current balun and coax cable.  I use a MFJ-945E tuner to improve
matching off center frequency: 3920 & 7150 KHz.  Some years ago I had
a 252-foot 160m dipole, but it was too close to ground for a decent
radiation angle (top loaded verticals seem better for the top band).

Before setting up my Hygain TH3mk4 triband yagi, I also used a 20m
dipole.  I have a 10m/6m dual-band J-Pole which is resonant on my
favored frequencies and again can be tuned using the antenna tuner to
extend off frequency.

I use a 43x122-foot Inverted-L with base loading coil on 502-KHz.  I
plan to try tuning it for 160m, as well.  The antenna is resonant
with base-loading over a 5-KHz bw, although extremely short on 600m
(quarter wave = 490-feet); radiation resistance =0.8 ohms.

Thus I avoid high SWR on transmission lines (<3.5:1).

73, Ed - KL7UW
I run 100w on 502-KHz, and up to 270w on 160-10m using either the K3 or KX3.

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[N5GE]

Edward,

Here is a link to an antennae only web site.  You might find that it
fits your antennae discussion interests very well.

73,
Tom
Amateur Radio Operator N5GE
ARRL Lifetime Member
QCWA Lifetime Member

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73,
Tom
Amateur Radio Operator N5GE
ARRL Lifetime Member
QCWA Lifetime Member


On Fri, 15 Feb 2013 23:12:33 -0900, Edward R Cole
<[hidden email]> wrote:

>I have found that resonant antennas work best for me: on HF or VHF+.
>
>I have a 80/40m dual inverted-V with apex at 45-feet and 80m ends at
>22-feet that works very well out to 800-miles (so I would consider it
>good NVIS and moderately good for longer distance). It is fed with a
>current balun and coax cable.  I use a MFJ-945E tuner to improve
>matching off center frequency: 3920 & 7150 KHz.  Some years ago I had
>a 252-foot 160m dipole, but it was too close to ground for a decent
>radiation angle (top loaded verticals seem better for the top band).
>
>Before setting up my Hygain TH3mk4 triband yagi, I also used a 20m
>dipole.  I have a 10m/6m dual-band J-Pole which is resonant on my
>favored frequencies and again can be tuned using the antenna tuner to
>extend off frequency.
>
>I use a 43x122-foot Inverted-L with base loading coil on 502-KHz.  I
>plan to try tuning it for 160m, as well.  The antenna is resonant
>with base-loading over a 5-KHz bw, although extremely short on 600m
>(quarter wave = 490-feet); radiation resistance =0.8 ohms.
>
>Thus I avoid high SWR on transmission lines (<3.5:1).
>
>73, Ed - KL7UW
>I run 100w on 502-KHz, and up to 270w on 160-10m using either the K3 or KX3.
>
>______________________________________________________________
>Elecraft mailing list
>Home: http://mailman.qth.net/mailman/listinfo/elecraft
>Help: http://mailman.qth.net/mmfaq.htm
>Post: mailto:[hidden email]
>
>This list hosted by: http://www.qsl.net
>Please help support this email list: http://www.qsl.net/donate.html

______________________________________________________________
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