[Top] [All Lists]

Re: [TenTec] AL-811 amp integration with Omni V

To: tentec@contesting.com
Subject: Re: [TenTec] AL-811 amp integration with Omni V
From: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Reply-to: geraldj@storm.weather.net,Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Mon, 06 Aug 2007 16:12:07 -0600
List-post: <mailto:tentec@contesting.com>
On Mon, 2007-08-06 at 15:11 -0500, Stuart Rohre wrote:
> All,
> Always tune up a rig and linear and tuner into a dummy load before applying 
> an antenna.  Then, you should have less range of adjustment to fine tune the 
> tuner to the antenna.

Only if the antenna is near resonance. Otherwise the tuner should be
pretuned with an antenna analyzer or noise bridge or tuner tuner (fixed
Z noise bridge. The rig and linear used with that tuner should be tuned
into a dummy load and all that tuning can be facilitated by keeping a
tuning chart with good logging dials on the adjustable components.

I find peaking receive through the tuner speeds adjustments when I've
neglected to look at my tuning chart.
> And, if possible, use an antenna analyzer to make sure the tuner settings 
> are either correct for the intended antenna, (separately with the linear 
> disconnected), or tune the antenna using the antenna analyzer as the source.
> That minimizes the on air time of the linear while tuning up.  Actually, the 
> goal is to NOT tune up the linear on the air.

For sure, but when the only tuning instrument is a SWR bridge that runs
at full transmitter power, tuning on the air will be done.
> 73,
> Stuart
> K5KVH 

73, Jerry, K0CQ,
All content copyright Dr. Gerald N. Johnson, electrical engineer

TenTec mailing list

<Prev in Thread] Current Thread [Next in Thread>