M7 GX Technical Manual
56
Raveon Technologies Corp.
2. Watch the RSSI DAC value by issuing the
AT$5
command. The current
reading will be sent out the serial port.
3. Adjust the RF level to a point where you would like the RSSI to trigger the CD
signal. This is factory-set to -110dBm.
4. Send the
ATRA nnn
command. Set
nnn
to be equal to the RSSI setting you
would like the CD signal to trip at. The BUSY LED will also indicate an RF
carrier when the RF carrier is above the threshold set with the ATRA command.
5. Generate an RF signal on-channel with a level of -110dBm. Verify the
Power/BUSY LED stays on. If it does not, repeat step 4, adjusting in increments
of 10.
Busy-Channel Lock Out
If your system operation require the RV-M7 modem to monitor-before-transmit, of if
you do not want the RV-M7 to transmit on a channel that is busy, you can enable
“Busy-Channel-Lockout”, using the
ATBC 1
command.
ATBC 0
disables BCL, and
thus the modem will transmit whenever it has data to send out.
