[Elecraft] KDSP2 - SSB Gain

Sun Aug 10 08:57:00 2003

I notice this same effect with the DSP on cw.  I haven't reduced the gain 
to make it sound the same as BYP mode since I don't really switch back and 
forth that often.  But it is curious what the default gain of zero means.

best wishes,

dave belsley, w1euy

--On Sunday, August 10, 2003 11:26 AM +0100 Baker <[email protected]> 
wrote:

> I was wondering why SSB signals were sounding much louder with the
> KDSP2 switched in than bypassed.
>
> Using a signal generator set to a low level I obtained a 1 kHz audio
> beat with the carrier oscillator.
>
> The AGC was switched off and the filter set to OPT1.
> I then looked at the resultant audio on Spectogram.
>
> When the DSP was switched ON with SSB Filter gain set to the default
> ( 0 dB) the audio level went up by about 3.5 dB. No wonder signals
> sounded stronger !
>
> I have set the SSB filter gain to -3.5 dB and now observe no change
> in audio level between DSP in or out.
>
> I am wondering if my K2/DSP has a problem as I would have expected
> unity gain with the default setting of 0 dB.
>
> Anybody else found this ?
>
> Stewart G3RXQ
>
> -- The Bakers' Home
> -- [email protected] on 10/08/2003
>
>
> _______________________________________________
> Elecraft mailing list: [email protected]
> You must be subscribed to post to the list.
> To subscribe or unsubscribe see:
> http://mailman.qth.net/mailman/listinfo/elecraft Postings must be plain
> text (no HTML or attachments).
> Elecraft Web Page: http://www.elecraft.com

----------------------------------
David A. Belsley
Professor of Economics