Ok but somehow I got the idea that the clicks were actually generated within
the DSP stage. When using headphones I can hear what sounds like a bit of
AGC overshoot on the PRO. A thumpy sound on cw. Somehow I think the thumps
and clicks are related. The AGC on the OMNI is perfectly smooth even in fast
mode which is very unusual.
Steve N4LQ
----- Original Message -----
From: <al_lorona@agilent.com>
To: <tentec@contesting.com>
Sent: Thursday, August 12, 2004 6:42 PM
Subject: RE: [TenTec] ICOM PROII vs 6+ experiment
Steve,
It tells you that the phase noise of the Icom is 6 dB higher. This phase
noise causes something called "reciprocal mixing". That's what you're
hearing. But nobody cares about phase noise here. It's not important.
Regards,
Al W6LX
> -----Original Message-----
> From: tentec-bounces@contesting.com
> [mailto:tentec-bounces@contesting.com]On Behalf Of Steve N4LQ
> Sent: Thursday, August 12, 2004 3:37 PM
> To: tentec@contesting.com
> Subject: Re: [TenTec] ICOM PROII vs 6+ experiment
>
>
> It didn't matter. I was comparing receivers and they were set
> up equally.
> Same antenna. Same speaker etc. It didn't matter what caused
> the clicks
> then. Sure we can blame it on the 930's spurious products but
> the fact that
> those products were LOUDER on the PRO than they were on the
> Omni tells me
> something. Question is: What did it tell me?
>
> Steve N4LQ
> ----- Original Message -----
> From: "Barry N1EU" <n1eu@yahoo.com>
> To: <tentec@contesting.com>
> Sent: Thursday, August 12, 2004 6:30 PM
> Subject: [TenTec] ICOM PROII vs 6+ experiment
>
>
> > N4LQ reported "Both the Omni 6+ and PROII were set for
> > 250hz bandwidth and equal audio output then tuned off
> > frequency by 500hz."
> >
> > If you tuned 500hz off the fundamental xmit freq, how
> > do you know you weren't hearing spurious xmit products
> > rather than spurious rcvr products? The TS-930's cw
> > xmit spectrum is almost certainly a lot wider than +/-
> > 500hz.
> >
> > 73,
> > Barry N1EU
> >
> >
> >
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>
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