[amsat-bb] PSAT PSK31 experimental software (Op ideas)

Robert Bruninga bruninga at usna.edu
Thu Jul 16 13:29:32 UTC 2015

Full DUX PSK31 Operating ideas:

Can I assume the TX uplink software has the usual BRAG text and CQ
features, since the expectation is that users will continuously transmit
throughtout the entire pass and the operator has plenty to do other than
type continuously at the keyboard.  So I envision some continuously
running brag text including CQ's the call, the HF antenna, the power, the
grid, the location in DDN/DDDW whole degrees maybe (for APRS purposes),
the downlink antenna, and so forth.  And then maybe the looping uplink
will stop at the next item separator and allow the operator to inject
keyboard text.

In other words, the loop just runs.  But if the operator begins typing
(maybe he sees a buddy in the dowonlink) he just starts typing and the
LOOP stops at the next break in loop elements and inserts the typed text.
Im thinking that elements in the brag string would be separated by " - "
but then when ever the operator types text, then it is inserted in the
stream beginning with [ then text goes here and ends with a ] when he hits
the enter key?

By having a common system of continuous brag items and interjected live
text, then we all have consistent expectations as to what the PC is doing
versus the operator?

Bob, WB4aPR

-----Original Message-----
From: AMSAT-BB [mailto:amsat-bb-bounces at amsat.org] On Behalf Of KO6TZ Bob
Sent: Thursday, July 16, 2015 12:31 AM
To: amsat-bb at amsat.org
Subject: Re: [amsat-bb] PSAT PSK31 experimental software

The software worked great !!!  Produced a straight line on the waterfall
for the down link.

As expected, I was alone on the pass, so no opportunity for a contact.

I was using digi-pan for the RX, my signal was at around 2200Hz..
Probably an indication the oscillator in my radio is off a bit.  I think I
will lower the frequency from 2000 to about 1600.  That will put my signal
lower in the VF pass band.

I like the program.  Had good copy.


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