The G5RV in its orriginal configuration is
102 feet long. Centre fed with a quarter wave of of 300 ohm ribbon. This
is then connected to coax for the final run to the radio. This will work
for 80 through to 10 ignoring the warc bands. Modifications include quality
balluns at the ribbon coax junction and additions to allow warc band
opeeration. In theory you can strap the centre and shield of the coax
together and load it as a long wire. Again thinking now tends to favour a
doublet where you feed the 102 top with open ladder line and used a balanced
tuner.
All that being said its a popular design and needs the general needs of most
people It has I suspect gained a reputation well beyond its merits and is
probably an embarassment to its namer. It was only ever intended as a
compromise one size fits all design I understand. There is some interesting
stuff on tuning it by changing the feeder lengths. Basically and inductor
at the end of each of the ladder wires. You alter the taps on the inductors
to alter the ladder length.
- Liam g4uwp
----- Original Message -----
From: Fred Leader <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, March 07, 2001 8:26 PM
Subject: G5RV
> Can someone tell me a little more about the G5RV antenna. What bands does
> it cover? How long is it? Is it center fed? What do you feed it with?
> Thanks for any or all answers.
> Fred Leader [log in to unmask]