[TenTec] External DSP with Pegasus

[Carl Moreschi]

I used to run my Timewave DSP-599ZX with the Pegasus.  It really worked well
that way.

Carl Moreschi N4PY
121 Little Bell Drive
Bell Mountain
Hays, NC 28635
----- Original Message ----- 
From: "Mark Erbaugh" <mark at microenh.com>
To: "tentec mailinglist" <tentec at contesting.com>
Sent: Wednesday, March 28, 2007 1:45 PM
Subject: [TenTec] External DSP with Pegasus


> Recently I hooked up an old MFJ-784B DSP box to my Pegasus.  While the
> 784B is still in the MFJ catalog, the EPROM copyright sticker says 1996.
> One of the things I don't like about the Pegasus is the lack of any
> really narrow filters. I have enough problems copying just one CW signal
> (I'm doing this the old-fashioned way, by ear), and there are times,
> when the 300 Hz filter on the Pegasus just won't cut out a nearby
> signal, which really distracts me.
>
> The 784B allows me to really narrow in on one signal. In addition, the
> 784B accepts a line level input and has an audio amp for a speaker
> output so I can use an external speaker (and not worry about not
> grounding the speaker). Another nice thing about the 784B was that it's
> 5-pin DIN is an exact match for the Pegasus accessory output, except pin
> 5, which can be ignored if you like to send and receive CW at the same
> audio frequency (on the 784B, pin 5 is an input that bypasses the DSP
> when in Tx, so you could hear a sidetone that's not in the bandpass of
> your Rx filter - on the Pegasus, pin 5 is unused).
>
> The only downside is that the unit seems to increase the background
> noise a little and I haven't been able to cut that with the 784B's noise
> reduction. I find that under noisy (QRN) conditions, I can hear better
> without the 784B.
>
> Has anyone tried any of the other DSP boxes with a Pegasus?
>
> 73,
> Mark
>
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