Bob,
Just to clarify, by right padded, you mean spaces after the call sign, Correct: (K7TEJ sez)?
Rick Tejera
Saguaro Astronomy Club
www.saguaroastro.org
Thunderbird Amateur Radio Club
www.w7tbc.org
From: Robert Bruninga <bruninga@usna.edu>
Sent: Thursday, May 27, 2021 22:05
To: amsat bb <amsat-bb@amsat.org>
Cc: Robert Bruninga <bruninga@usna.edu>
Subject: [AMSAT-BB] PSAT2: DTMF *and* APRS-to-Voice enabled
A new feature has been enabled for the Voice Synthesizer on PSAT2
in addition to DTMF grid and DTMF messaging to voice. Now the voice
synthesizer is also listening for APRS-to-Voice messages as well.
Here is how to use it
1) Remain on the 145.980 uplink and 145.825 downlink for DTMF
2) Using an APRS radio, send an APRS message to PSAT-SAY
3) Begin the first 10 chars of the message with CCCCCC sez
4) Followed by the text to be spoken.
5) CCCCCC is your callsign right-padded with spaces.
The satellite should ACK the packet uplink and then speak the text.
You can tell if APRS-to-Voice is enabled if this 1 bit is on: XXXX0010.
Usually the DTMF bits are also enabled so the telemetry will usually
show as 11010010.
To do both DTMF and APRS-to-Voice at the same time, the Basic Stamp
processor has to check both the DTMF decoder and the packet decoder
and so there is a finite chance that a perfectly good uplink might be missed
So, just try again.
Tomorrow I will add this feature to the users manual and post it.
Enjoy, Bob, WB4APR