[Elecraft] OT: G5RV antenna

Bob McGraw K4TAX rmcgraw at blomand.net
Sun Dec 9 14:52:37 EST 2018


 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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