[TenTec] repairs

[Rick - DJ0IP / NJ0IP]

Hi Sinisa,

Has this technique ever been implemented in a ham radio like this?

With analog technology that would have been a very tough feat to accomplish
but with digital technology it ought to be fairly easy to do.

Of course the down side of that method would be, it moves both skirts in the
same direction, so while you are moving away from QRM on one side, you may
very well be moving into QRM on the other side.

73 - Rick, DJ0IP
(Nr. Frankfurt am Main)


-----Original Message-----
From: TenTec [mailto:tentec-bounces at contesting.com] On Behalf Of shristov
Sent: Wednesday, October 29, 2014 7:34 AM
To: Discussion of Ten-Tec Equipment
Subject: Re: [TenTec] repairs

Rick - DJ0IP / NJ0IP <Rick at DJ0IP.de> wrote:

> Could someone here please explain to me (technically) how PBT can work 
> with single conversion?


PBT (with constant filter bandwidth) is easily done with single conversion
and single filter. 
Just vary VFO and BFO frequencies simultaneosly to keep the resulting
carrier frequency unchanged.

73,

Sinisa  YT1NT
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