[TenTec] AGC thump

[Clark Savage Turner]

Hi Paul -

Oh, heck, if it doesn't bother you why worry?  (Remember MAD magazine 
and Alfred E. Neuman with his "What, Me Worry?"   My dad always thought 
I was a little like Alfred!)  I tried out a "mod" to the AGC on an 
Argosy II and it killed the QSK sharpness.  I didn't like it, the AGC 
went "soft" on me.

The "thump" is when you are listening to a quiet band, then suddenly a 
big signal (over S9) comes up and the receiver gives a "pop" at that 
instant.  Not a big deal, doesn't bother me much either.  When you take 
down the RF gain it will disappear (takes the signal to the bottom of 
the AGC range) so that will "solve" it anyway.

I notice a bit of a thump on transmit also, but it is not a big deal to 
my ears, just a minor result of that wonderful QSK of a Ten Tec.  I 
believe the engineering tradeoffs of very fine QSK (biggest priority: 
allowing me to hear the band in between my transmissions)  don't quite 
involve perfection, but give me just what I need ... and better than 
other kinds of transceivers.

Clark
WA3JPG


On Wednesday, March 12, 2003, at 06:35 AM, Paul DeWitte K9OT wrote:

> Having read several references to AGC thump, I am not sure what it 
> sounds
> like. My Corsair II on transmit will have a thump on keying. If I turn 
> down
> the AF gain or the RF gain the noise will dissappear. Is this what is
> refered to as AGC thump? My Omni D has none of this. Smoothest cw rig 
> that I
> have run yet.
> If this is what is referred to as AGC thump, do any of the mods that are
> around get rid of the thump and still retain 100% of the breakin?
> Maybe I have an entirely different problem? I can live with it but 
> would be
> nice to get rid of the thump.
> Thanks 73 Paul K9OT
>
>
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