George,
The Pegasus transmit bandwidth is also DSP controller and can be set
from 900 hertz to 3900 hertz. This is all the GUI allows. Actually the
firmware
will allow any receive filter to be used in transmit. What I am playing
around with is just where the filter should center in the audio passband.
In other words, how should
a 2400 hertz filter be centered. Should it pass 0 to 2400 or should it be
300 to 2700
or what?
The receive bandwidth can be set from 8000 hertz to 300 hertz with 32 steps
in between these values.
Carl Moreschi N4PY
cjm@qvssoftware.com
----- Original Message -----
From: "George T. Baker" <w5yr@att.net>
To: "Beamer, Jay" <JBeamer@PanAmSat.com>
Cc: "'Sherrill WATKINS'" <SEWATKINS@dgs.state.va.us>;
<CarlMoreschi@worldnet.att.net>; <tentec@contesting.com>
Sent: Thursday, March 23, 2000 8:47 PM
Subject: Re: [TenTec] CAUTION: SSB Comments Only (for N4PY)
>
> The Kachina uses DSP phasing to generate the SSB transmit signal. The
> transmit passband is 100 Hz to 4000 Hz. The receive passband on SSB is
> 3500 Hz, with DSP filters; on AM it is 6000 Hz. I think Sherrill has the
> right idea.
>
> You CAN equip some conventional rigs - such as the KW 950 series - with 6
> KHz transmit and receive filters, but they are the exception. That is
> what many of the 20-meter "hi fi" group on 14,178 are running. together
> with a few K-bucks of commercial audio processing gear up front after a
> $$$ studio mic.
>
> Most rigs with factory filters are good for about 2000-2500 Hz at best,
> usually with a restricted low end. They can and do sound good and do very
> well within their design limitations.
>
> 72/73, George
> Fairview, TX 30 mi NE Dallas in Collin county
> Amateur Radio W5YR, in the 54th year and it just keeps getting better!
> R/C since 1964 - AMA 98452 RVing since 1972 Kachina #91900556
>
> "Beamer, Jay" wrote:
> >
> > Sherrill,
> >
> > Ouch! Guess that depends on one's perspective! Sherrilly you jest!
> >
> > 73,
> >
> > J/KM6VX
> >
> > -----Original Message-----
> > From: Sherrill WATKINS [mailto:SEWATKINS@dgs.state.va.us]
> > Sent: Thursday, March 23, 2000 11:32 AM
> > To: JBeamer@PanAmSat.com; CarlMoreschi@worldnet.att.net
> > Cc: tentec@contesting.com
> > Subject: Re: [TenTec] CAUTION: SSB Comments Only (for N4PY)
> >
> > Unless one is running A.M, or a phasing type single sideband generator,
> > the term "enhanced audio" is an oxymoron. - Sherrill W. k4own
>
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