Phil,

I'm the guilty one, and thanks for answering my question.  Considering that 
the R75's DSP is in the audio chain, it works pretty well, but it makes 
sense that the DSP in the 7000 works better.

Steve

----- Original Message ----- 
From: "Phil Scovell" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, March 13, 2009 17:53
Subject: DSP and Icom 7000


>     Someone asked me awhile back if the Digital Signal Processing
> DSP in the Icom 7000 was in the audio circuit or the IF.  I
> happened to be reading the manual last night and stumbled across
> this information.  The DSP is indeed sampling the signal from the
> IF.
>
>     Speaking of which, last night I was working a guy in Ohio on
> 30 meters.  I check 30 meters often and especially later at night.
> I do so by checking to see if I can hear WWVH and the female audio
> in Hawaii on 10 Megs.  Her signal was really loud last night about
> 9 PM local so I went up the band and heard some CW signals.  I
> punched up a few CQ calls and got a guy from Ohio with whom I rag
> chewed with for about 30 minutes.  Although he was pretty loud,
> and the line noise was low, there was a lot of weird background
> hash and hiss coming through so just for fun, I snapped on the
> DSP.  Fifty percent of the noise disappeared and he came through
> loud and clear.  I didn't have to turn on any crystal filters at
> all to copy him 100 percent.  So, I am very much impressed with
> the DSP, at least for CW operation, with this radio compared to
> the Icom R75 receiver version of the DSP feature.
>
> Phil.
> [log in to unmask]
>