Company Confidential
11
Raveon Technologies Corp.
** indicates values that are calibrated in the factory and are unit-
specific.
7.5 Default Frequencies
The MURS modem has five user selectable channels. The channel is selected
with the ATHP command.
1
151.820 MHz
2
151.880 MHz
3
151.940 MHz
4
154.570 MHz
5
154.600 MHz
8
Factory-Only Debug and Test Facilities
Debug Related Commands
8.1 Testing
(Must be in command mode to test. Enter +++ at the keyboard to put unit into config/test mode.)
ATTD x
Various test routines.
0 = Go back to normal mode. Stops the test.
1 = Random data transmit.
2 = Hop up/down one channel
3 = Force PLL to fast lock mode
4 = Transmit all 0s
5 = Transmit all 1s
6 = Enable the test points on the PCB.
7 = Transmit CW on center of channel
8 = Transmit alternating 1s and 0s
SHOW
Display an overview of the configuration.
STAT
Display statistics of how the modem is working.
AT$5
Display RSSI. It will scroll the reading until another character
comes in the serial port.
8.2 Packet Counter
ATPE 0
Reset the packet counters back to zero
ATPE 1
Begin counting and displaying the packet counters every minute
ATPE 2
Stop counting and displaying packet counters
9 Using the Radio Modem – Packet Mode
This section describes the MURS modem operation in the
Packet Mode
of
operation. Packet Mode is the factory-default operating mode. It is the easiest
and most reliable mode of operation for a modem. Note: The configuration of
the
Radio Modem
is done when it is in the “Command Mode”. Refer to Section
