Topband: BAD OT:Phase noise *** RE: digital on 1838 +/-

[MIKE DURKIN]

Don't you mean IMD from the radio/amp driven past ALC?

CW is a binary signal and no one complains of its "phase noise" ..... 

Mike KC7NOA 

> From: n4is at comcast.net
> To: wa3mej at comcast.net; topband at contesting.com
> Date: Fri, 30 Dec 2011 22:59:09 -0500
> Subject: Re: Topband: digital on 1838 +/-
> 
> 
> 
> -----Original Message-----
> From: topband-bounces at contesting.com [mailto:topband-bounces at contesting.com] On Behalf Of wa3mej at comcast.net
> Sent: Friday, December 30, 2011 10:47 PM
> To: topband at contesting.com
> Subject: Re: Topband: digital on 1838 +/-
> 
> 
> Jim
> 
> >>>Consider this however, CW and digital modes like JT65 typically share the CW portion of the bands<<<.  
> 
> That is not the case on weak signal bands, and in special 6m, digital modes are above 50.250 MHz, there is a clear reason for that, digital is not a narrow mode, there are phase noises that  can trash the band.
> 
> 
> Regards
> Jose Carlos
> N4IS
>  
> 
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