[Elecraft] OT: G5RV antenna

[Doug Person]

I experimented with a G5RV. I did not have worth while results. A simple 
dipole with a quality current balun easily outperformed it. I also tried 
the "Mystery Antenna" - a joke. Measurements were down to a millimeter. 
It was up for an hour then was scrapped. I did have "acceptable" results 
with the G5RV in that my Differential-T tuner could load it on 40 
through 10 quite easily.

My next test was a 132' doublet fed with 40' of good quality 300 ohm 
twin lead into an excellent 1:1 current balun with 10' of RG/213 into my 
tuner. Tunes 160 through 10 with my Diff-T tuner. Signal reports were 
outstanding on 40 and easily a match for the dipole on 20. Nothing 
surprising about these results.

As many have said before - the 132' wire-fed doublet is the best 
overall, must versatile antenna you can erect.

73, Doug -- KJ0F

On 12/9/2018 12:52 PM, Bob McGraw K4TAX wrote:
> From my experience, more folks should pay attention to the antenna and 
> balun work done by DJ0IP.    They would likely have better performing 
> antennas.  His work is proven on antennas and not text book or 
> computer models, but indeed he provides real world results.
>
> 73
>
> Bob, K4TAX
>
>
> On 12/9/2018 10:30 AM, CUTTER DAVID via Elecraft wrote:
>> In addition, Reg was designing in the era of valve output 
>> transmitters with built-in pi-tank matching system, so, it was 
>> possible to match on different bands.  I'm sure mine worked across 80 
>> to 10m in those days.  For 80 to 10m these days I use a 
>> off-centre-fed dipole with hybrid choke/transformer at the feed point 
>> as designed by DJ0IP for minimum common mode current.
>> David G3UNA
>>
>>> On 08 December 2018 at 16:32 Ken G Kopp <kengkopp at gmail.com> wrote:
>>>
>>>
>>> As I've already stated … I have a copy of the original Varney
>>> RSGB article that describes the G5RV and plainly states that
>>> it's a 20M only antenna.
>>>
>>> Remember, it requires an antenna tuner …
>>>
>>> Start with a dipole …
>>>
>>> Keep the "magic" 32' length of 300 ohm feedline.
>>>
>>> Delete the 68' of coax.
>>>
>>> What's left?  A "normal" open wire fed dipole, better
>>> known as a Zepp.
>>>
>>> 73!
>>>
>>> Ken Kopp - K0PP
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>
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