User's Manual

SATELLINE-3AS
User Guide, Version 2.2
26
The frequency bands for Dual Channel function can be set within the standard operational band
of 2 MHz, or the special Dual Band version may be used for the larger frequency separation (up
to 10 MHz). With the help of SL commands the modem can be set to Single, Dual or Reverse
Dual Channel mode (Single Channel = normal one channel mode).
Application example (diagram above), where all the radio modems in the system are configured
to have the same basic settings. The modem configuration is changed by using the SL
commands suitable for each station as shown in the table below.
Function Setting Command
Modem 1 Connection to modem 2 Reverse Dual Channel SL@D=R
Connection to modem 1 Dual Channel SL@D=D Modem 2
Connection to modem 3 Single Channel SL@D=S
Modem 3 Connection to modem 2 Single Channel SL@D=S
f1
f2
f3
Modem 1 Modem 2 Modem 3