Rick,
900 feet? What type of coax are you using?
You could probably cancel out the coax by using a VNA like the AIM4170 of
N2PKVNA and performing a OSL calibration at the antenna end. You would get
lots of exercise walking back forth to to switch between the open, short,
50ohm and actual load!
73,
Mike N2MS
----- Original Message -----
From: "Rick Karlquist" <richard@karlquist.com>
To: "Michael St. Angelo" <mstangelo@comcast.net>
Cc: <richard@karlquist.com>; "Mike & Coreen Smith" <ve9aa@nbnet.nb.ca>;
<topband@contesting.com>
Sent: Saturday, October 17, 2009 12:28 AM
Subject: Re: Topband: BCB Filter (related to Antenna Analyzer question)
> Michael St. Angelo wrote:
>> Rick,
>>
>> Telepost makes a Digital Vector Wattmeter, model LP-100A, that also
>> measures
>> complex impedances when you transmit. If you can get your hands on one of
>> there you can try it.
>>
>> Mike N2MS
>
> I need to know the complex impedance of the antenna, not the
> impedance at the transmitter. I don't believe the telepost
> system calibrates out cables. Also, my transmitter is 900 feet
> from my antenna, so it is kind of impractical to make adjustments.
>
> Rick N6RK
>
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