Timewave DSP-232, Operating Manual

Page: 119 / 271

Chapter 6 GPS Applications
While operating in one of the GPS modes, the following commands can be programmed: GLOCtx, GNMEA1,
GNMEA2, GINIText, GSYMchar, Unproto.
To remotely program the DSP, the programming station must have its Unproto destination callsign set to match the
GPOLLcall of the DSP-232.
Example:
Let’s say you have a DSP in your car as a stand alone tracker with its GPOLLcall set to CAR. In your house, you
would program your TNC’s Unproto to CAR (U CAR). Now place your TNC in converse mode by typing either (K
or CONVerse). If you wanted to change the DSP in the car’s Unproto path, you would simply type U APRS via
RELAY <CR>. Your TNC in your home would transmit the following frame:
Home TNC:
{your callsign}*>CAR [UI]:
U APRS via RELAY
DSP in the car would reply:
DSP*>RELAY>APRS [UI]:
++ done
Note that the DSP in the vehicle replied with the meddate
++ done . This indicates that the command was properly
received and the parameter was changed. the following is a list of additional messages and their meaning.
Remote programming messages:
Message Meaning
++done the parameter was programmed
++bad not supported, incorrect format, or bad data
++too many too many parameters entered
++range numeric entery is too large
GSYMChar n Default: 0 None
Mode: GPS packet
This is a Hex value rangin from 0-255 that represents a symbol in APRS software. The symbol character will be
enclosed in curly brackets before all Beacon transmissions.
KA7SYZ*>RELAY>APRS [UI]:
{SYMChar} This is a sample UI frame...
GUNSTart on/off Default: OFF
Mode: GPS packet
ON
- The DSP starts in CONVERSE mode after a restart or power-up.
OFF - The DSP will power-up in command mode.
This command allows the DSP-232 to power up in the CONVERSE mode if turned on.
6-10 September, 05