User's Manual

Company Confidential 17 Raveon Technologies
shipped ready-to-use. Out of the box, they will communicate on the
default radio channel using the factory defaults. In general, the
parameters you may want to modify will be:
ATFX Frequency for this channel. Set to your frequency.
ATMT 0 0 for normal Packetized operation. Default mode.
ATAK 0 for no ARQ, 1 if this unit sends ACKs. Default is no ARQ.
ATRB Set the number of retries if ARQ is used (x). 0 if no ARQ used.
Factory default is no ARQ.
ATBD Serial port baud rate
ATMY The ID of this unit. Default is 1234.
ATMK The network address mask. Default is FFFF.
ATDT The address of the unit this modem will talk to. Default is 1234.
ATBC Enable/disable busy channel lock-out. Default is off, 0.
6. Connect your serial data device to the 9-pin connector on the front of the
modem.
The radio is now ready to use. Any serial data going into the modem will be
transmitted over the air, and any data received over the air will be sent out the
serial port.
Remember, that from the factory, all M7-UC modems are configured to simply
work. Plug in power and connect to the serial port at 9600 baud, and the
modems will communicate on the default channel. Change the channel
frequency to your specific frequency, and they will be ready to work on your
channel.
6.2 Programming Channels and Frequencies
The M7-UC modem has memory for up to 6 channels. A channel is a pair of
frequencies, one for transmit and one for receive. They may be different or
they may be the same. You may program any valid frequency into any
channel number. To program a channel, perform the following steps.
1. Change to the channel you wish to program, using the ATHP x command,
where x is the channel number.
2. Program the frequency for this channel x, using the ATFT, ATFR, or
ATFX command. Note that the frequency may be entered in MHz as long
as you use a decimal point. For Example, enter ATFX 450.1 to set the
channel frequency to 450.100MHz. Alternately, you may enter the
frequency in hertz by entering ATFX 450100000. You must enter all of
the zeros if you enter the frequency in hertz.
3. Review the frequency setting with the ATFT, ATFR, or ATFX command.
To see a list of all of the channels, enter ATF.
4. To change the radio channel, use the ATHP x command while the modem
is in the command mode.