[TenTec] ICOM PROII vs 6+ experiment

[al_lorona at agilent.com]

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 at contesting.com
> [mailto:tentec-bounces at contesting.com]On Behalf Of Steve N4LQ
> Sent: Thursday, August 12, 2004 3:37 PM
> To: tentec at 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 at yahoo.com>
> To: <tentec at 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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