User's Manual

Company Confidential 61 Raveon Technologies
13 SkyLine Compatibility
13.1 General
The M7-UC RF modem has built-in compatibility with a radio modem made by
Sonik Technologies, Vytek Wireless, and Cal Amp called the SkyLine. In most
applications, Raveon’s M7-UC modem can communicate with SkyLine modems,
provided the M7-UC is properly configured. There are two versions of the
Skyline, a wide-band version running at 9600 bps over the air, and a narrow-
band version running at 5142bps over the air.
13.2 Configuring M7-UC to Communicate with a SkyLine
To configure the M7-UC modem to talk to an old SkyLine modem, the user must
configure the M7-UC with these commands:
ATR2 7 This command tells the M7-UC modem to operate with an over-the-air
baud rate of 5124 bits per second. This is the baud-rate of all narrow-
band (12.5Khz spaced) SkyLine radio modems. Wide-band SkyLine
radios operated at 9600 baud over the air. The command to set the
M7-UC to 9600 baud over the air is ATR2 5.
ATR5 8 This command tells the M7-UC modem to send 8 bytes of pre-amble
before every transmission.
MYID 1234 The MYID of the M7-UC modem is set with the ATMY command or
the MYID command. The default MYID of the SkyLine was 1234.
TOID FFFF The TOID of the M7-UC modem is set with the ATDT command or the
TOID command. The default TOID of the SkyLine was FFFF
(broadcast address).
A quick-configure command is included in the M7-UC, to allow it to be easily
switch to the M7-UC mode. The command is “SKYLINE”. When in the
configuration mode, enter SKYLINE, and the modem will reconfigure itself as a
narrow-band SkyLine modem, with TOID = FFFF, MYID=1234, 80 byte packets,
20mS serial port time out, channel 1 frequency, over-the-air baud rate 5142.