[TenTec] Pegasus / Jupiter and Timewave DSP599zx

[Robert Steele]

Hi Mark
    I've got a Jupiter which I intend to use for PSK31, but I don't know
anything about the DSP599xx box. I take my license exams on the 28th and I
hope to be on the air by the middle of April. Shortly after that I hope to
be trying out Digipan PSK31. Perhaps I'm simple minded but I thought all
that was required was to connect up the radio through the provided port on
the back to the sound card, and the serial port of the computer, install the
software (I've already done this) adjust the sound card gains, and go.

    Is it possible that you have RF inerference  into your radio and
computer, from each other? this is a very common complaint according to all
I've read.

Bob
----- Original Message -----
From: "Mark Erbaugh" <mark@microenh.com>
To: <tentec@contesting.com>
Sent: Saturday, March 17, 2001 6:29 PM
Subject: [TenTec] Pegasus / Jupiter and Timewave DSP599zx


>
> Has anyone hooked up the Timewave DSP599zx box to a Jupiter or Pegasus?
The
> latest firmware allows the 599zx to provide an interface between the
> transceiver and a computer for modes such as PSK31.  All you need are
> connecting cables. The RS232 - TTL level converter for PTT control is in
the
> box. The input and output levels are adjustable through setup menus so you
> shouldn't need additional level adjusting pots. I spent a couple of hours
> messing with the setup this afternoon and never did get my transmitted PSK
> to sound clean.  It was close, but the one on the air contact I made gave
me
> a -12 IMD (which I think is way too high). Of course there could have been
> other factors, but I suspect that I'm overdriving the tx.  The 599zx
output
> level can be adjusted over a 50 db range (-45 - +6 or so) range so you
would
> think that would be enough.  I wonder if I've got some feedback or
something
> going in.
>
> 73,
> Mark, N8ME
>
>
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