[aprssig] RAFT in Packet-Voice mode

[Robert Bruninga]

Henk, PA3GUO, reports that he has just -enabled- RAFT VOICE
mode.

Enabled, this means that any station may TURN ON voice mode over
his country with a single CONNECT RAFT packet.  The voice
synthesizer will remain on for 90 seconds for eveyone to use.

Only the CONNECT packet is required of that station.  After his 
connect packet brings up RAFT, then he can fore a disconnect so 
he can try an APRS MESSAGE to TALK just like everyone else.

Once the VOICE synthesizer is on, then anyone can send a UI APRS
formatted MESSAGE to the callsign of "TALK" and RAFT will speak
it (if it decodes it)...

RAFT is very weak and hard to hear except on HIGH overhead
passes, even with beams.  Please do NOT attempt to turn on RAFT
or to send TALK messages if you cannot hear it.  You may be
QRMing other stations.

Thanks
Bob Bruninga, WB4APR
US Naval Academy Satellite Lab