The tuner in this application is a LDG AT897.
Also just to make sure I understand the advice properly here is the
modification plan.
Take the feed line from the 300 ohm twin lead and stick it right in the
center conductor of the coax connector on the tuner. Take the other
side of and ground that sucker! Many times, as much as I can. Ground
the radio to the water pipes. Tie a nice ground into the metal railing
outside my shack window (opposite side of the house). Ground to the
cat. Ground it!
Do I got the right idea?
Thank you very much for all your replies. I have been very impressed
with the level of "professionalism" in this group of ham's.
Justin
On Mar 28, 2005, at 8:40 AM, Jim Lux wrote:
> At 08:17 AM 3/28/2005, Tom Rauch wrote:
>> Ohh, OK, a shunt C. I missed that. My instincts tell me we
>> have to be careful with a shunt C when the network has a
>> series C in the output, like a T network. But maybe I'm
>> wrong.
>
> Most autotuners (or, at least, the SGC and LDG varieties) seem to use a
> shunt C and a series L, with the shunt C switched to either end,
> depending
> on the relative magnitude of the feedpoint impedance of the antenna
> being
> matched.
>
>
>
>>> Maybe I wasn't clear here either: "drop the counterpoise"
>>> does not mean "omit the counterpoise". It means connect
>>> a wire to the cold end of the counterpoise and let it drop
>>> vertically from there to the ground. BTW, when your
>>> antenna impedance is 1000's of ohms, you don't need much
>>> of a counterpoise, especially if you feed the
>> antenna/counterpoise
>>> through a balun to keep RF out of the shack.
>
>
> _______________________________________________
>
> See: http://www.mscomputer.com for "Self Supporting Towers",
> "Wireless Weather Stations", and lot's more. Call Toll Free,
> 1-800-333-9041 with any questions and ask for Sherman, W2FLA.
>
> _______________________________________________
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> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
Justin KL1RL
Fairbanks AK
Justin KL1RL
Fairbanks AK
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
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TowerTalk mailing list
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