Hi Dave;

I also use a modern G 5 R V.

It is coaxial fed.

In order to get it to tune above 20 meters, I use a device that M F J
manufactures.

It adds inductance in the line.

Its called an "auto tuner extender".

It has an eight position rotary switch.

However, even though I can tune up on ten meters, the R F is awful and I
have to tune everything off in my shack.

The R F make my computer work all by itself and my speech chip in my T M V 7
A just starts announcing the frequency that the radio is set to.

Hope this helps.

73 DE ANTHONY W2AJV
[log in to unmask]
PS. I have a good grounding system also.


----- Original Message -----
From: "David W Wood" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, October 10, 2001 2:03 AM
Subject: Re: Audible Power Meter


> Hello Lou
>
> I am surprised that an auto ATU is coping with the G5RV, but if it works
> then fine.
> I would be interested to hear if you are getting a good match on 21 megs
> with it?
> As I have mentioned on this list before, the modern commercially built
> G5RV antennas are not as Lou Varney designed them, but have been
> modified to meet modern commercially available wire.  He also described
> a matching system specifically for his configuration - before coax was
> available in amateur circles.
>
>
> I use a noise bridge between my t/rx and amp, and use resonant antennas
> where I can and then use home brew pi LC circuits of the usual form of
> two variable capacitors and a roller inductor.
>
> Tuning achieved by one of the RF Applications audible meters.
> Incidentally, I was talking to a U.S. ham here in London at the weekend
> and he uses one of these also, so it isn't just us blinkies who use
> them, maybe RFC haven't got their marketing right!
>
> By the way, I have two which will cope with up to 3 kW!
>
> 73 de Dave - G3YXX