He's talking not using the tuner. Not using the tuner, that sounds pretty
close to what I have with about 3 inches less ladder line. I have no idea
what it was before.
----- Original Message -----
From: "Lou Kline" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, December 28, 2007 12:47 AM
Subject: Re: more G5RV stuff
> Hi Tom.
>
> Those SWR readings seem a little high to me. I wonder if you could have
> an
> open or resistive feedpoint connection on one side of the ladder line on
> the antenna side of the ladder line?
>
> With the tuner I can generally bring 40 meters down to between 1.6 to 1
> (low end) and 1.3 to 1 z(high end). On 20 meters, I typically see 1.2 to
> 1
> on the phone portion of 20 meters with the tuner. Either I've got a much
> better tuner than you, or there is a problem somewhere in your antenna
> system.
>
> 73, de Lou K2LKK
>
>
>
> At 09:09 PM 12/27/2007 -0500, you wrote:
>>Are these readings what you get after using the tuner?
>>----- Original Message -----
>>From: "T Behler" <[log in to unmask]>
>>To: <[log in to unmask]>
>>Sent: Thursday, December 27, 2007 9:09 PM
>>Subject: more G5RV stuff
>>
>>
>> > Hi, all.
>> >
>> > Can someone tell me what an acceptable SWR picture would be for a
>> > 102-foot
>> > G5RV antenna?
>> >
>> > I re-oriented my G5RV antenna today, by making the ladder-line run
>> > pretty
>> > much vertically from the antenna feed-point at the top of my 35-foot
>> > tower,
>> > to the coax that then goes into my shack from the base of the tower. I
>> > checked the connections between the ladder-line and the coax feedline,
>> > and
>> > they still seem to be good.
>> >
>> > My SWR's are a bit better, and the auto-tuners on both my IC746 and
>> > Kenwood
>> > TS480 now tune the antenna on 40 meters (which I couldn't say before),
>> > but
>> > the SWR's still seem quite high to me.
>> >
>> > On 40 meters, I get an SWR anywhere from about 5 to 1 down to about 4
>> > to
>> > 1.
>> >
>> > The antenna has its best SWR readings on 20 meters, which you'd expect,
>> > but
>> > even here, I can't get the SWR to go much below about 1.8 to 1 in the
>> > center
>> > of the band.
>> >
>> > Again, at least now, the auto-tuners in both of my HF rigs will tune
>> > the
>> > antenna, but I'm wondering whether it's even safe or wise to use the
>> > antenna
>> > under these conditions.
>> >
>> > 73 from Tom Behler: KB8TYJ
>> >
>>
>>
>>
>>
>>--
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>>12/27/2007 1:34 PM
>
> Louis Kim Kline
> A.R.S. K2LKK
> Home e-mail: [log in to unmask]
> Work e-mail: [log in to unmask]
> Work Telephone: (585) 697-5740
>
|
