Specifications

M7 GX Technical Manual 62 Raveon Technologies Corp.
replace the fuse, the unit must be carefully check for damage and proper operation before being
installed. If you replace the fuse, you must use a Littlefuse brand fuse, part number 0297003 or
Raveon part, number 1X726-3 to maintain calibration of your unit.
Solution #3. Verify Low Power Mode. The RV-M7 has an optional Low Power Mode (LPM). If
LPM is enabled, the RV-M7 will power down whenever the DTR line of the serial port is turned off.
The Power LED will blink once every 10 seconds in the LPM mode. The ATSM command is used
to set or read the Low Power Mode. ATSM 1 enables it, and ATSM 0 disables it. If LPM is used
(ATSM 1), then the RV-M7 will turn off when the DTR line is off, or the program connected to the
serial port is closed, or the RS-232 connector is unplugged.
Symptom: Repeater will not repeat.
Solution #1. Verify the repeater’s Unit ID is unique. An RV-M7 configured to be a repeater will
not repeat messages it originated. If other units in the system have the same ID as the repeater,
the repeater will not repeat them because it thinks that it originated the transmission. Set the MYID
of the repeater to a unique ID number.
Solution #2 Verify the KEYPHRASE is correct. If encryption is used, the KEYPHRASE is set to
a unique word, and must be the same in all radios in the system. If it is not used in the radio
system, then the KEYPHRASE in all units must be disabled or left at the factory default. To disable
encryption, use the KEYPHRASE 0 command. The factory default KEYPHRASE is RAVEON, in all
capitol letters.
Symptom: Transmits position, but no data.
Solution #1. Verify DATAMUTE is not enabled. DATAMUTE disables data transmission. It must
be set to 0 for serial port data transmission or WMX transmit data.
Solution #2. Verify SLOTTIME is long enough. The TDMA slot time must be long enough for
data to be transmitted in. Adjust the system slot time (SLOTTIME), or give the particular unit an
extra slot using the SLOTQTY command.