[TenTec] Corsair vs. Orion (weak signal)

Robert & Linda McGraw K4TAX RMcGraw at Blomand.Net
Tue Aug 2 22:12:15 EDT 2005

Now wouldn't a IMD birdie that is zero beat produce nothing as far as an 
audible signal is concerned?  The only thing is that an "on frequency" 
signal might capture the AGC which would reduce the level of the desired 

Bob, K4TAX

----- Original Message ----- 
From: "Bill Tippett" <btippett at alum.mit.edu>
To: <tentec at contesting.com>
Sent: Tuesday, August 02, 2005 9:03 AM
Subject: [TenTec] Corsair vs. Orion (weak signal)

> W1ZR wrote:
> >Thus a receiver with better 3OIMD performance will allow that skilled
> operator to do a much better job of copying the weak signal than a 
> receiver
> with poor 3OIMD response.
>         Especially so if an IMD birdie happens
> to zero beat the signal you are trying to copy.
> The human ear (or any DSP) cannot cope with that
> at all.  The only solution is to remove the IMD.
>                                         73,  Bill  W4ZV
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