IF it has an RF gain control the pumping you describe shouldn't be a problem
if it is backed off, the ATT also does the same thing, I use the TS 870
and during heavy QRM action on CW or SSB it is very prone to pumping and
intermod. By reducing the RF gain control it is supprising how well a weak
signal can be copied next to a Big signal. The pumping and mixing of signals
is cured PRESTO.
Quack
----- Original Message -----
From: "Andrew Faber" <andrew.faber@gte.net>
To: <K4BEV@aol.com>; <cq-contest@contesting.com>
Sent: Saturday, October 08, 2005 19:32
Subject: Re: [CQ-Contest] A portable rig that would servewell
forcontestingtoo?
> Don,
> I've used a TS-570 in CW contests. It is a terrific rig in a lot of
ways,
> but it has a very broad front end. For contesters, this means that you
get
> AGC pumping caused by signals that you can't hear (because they are
outside
> of the IF filter passband), and this makes it hard to copy the signals you
> do hear. So, I don't recommend it for serious contesting.
> 73, andy, ae6y
> ----- Original Message -----
> From: <K4BEV@aol.com>
> To: <cq-contest@contesting.com>
> Sent: Friday, October 07, 2005 6:52 PM
> Subject: Re: [CQ-Contest] A portable rig that would serve well
> forcontestingtoo?
>
>
> > I'm surprised that the Kenwood TS-570 isn't being recommended as a
> > portable
> > contesting rig.
> > Is there a reason for this? Additional power supply needed perhaps??
> > The internal antenna tuner works fine and computer control is FB with
> > contest software that provides it. Built in (optional) DVK and a decent
CW
> > receiver
> > with an Inrad filter. Plus a carrying handle on the side. I like mine.
> >
> > I use a 765 for contests from home, but way prefer the 570 over the 706
in
> > my car. The 706 just takes up a lot more space with the panel detached.
> >
> > 73, Don - K4BEV
> > _______________________________________________
> > CQ-Contest mailing list
> > CQ-Contest@contesting.com
> > http://lists.contesting.com/mailman/listinfo/cq-contest
> >
>
>
> _______________________________________________
> CQ-Contest mailing list
> CQ-Contest@contesting.com
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>
>
>
> --
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