User's Manual

SATELLINE-M3-TR1
User Guide, Version 3.0
36
7.2 Radio Frequency
o Operating RX/TX frequency
Modem will always transmit the data from the terminal device in the selected TX frequency.
When the transmission is finished the modem will change the operating frequency back to
selected RX frequency. If the modem is programmed to operate as a repeater the modem will
receive the data in RX frequency and when all data is received the modem will repeat the data
and forward it in configured TX frequency. The time to change frequencies from TX to RX or RX
to TX takes approximated 40ms.
o Reference frequency
The reference frequency is used with the SL-commands (SL&+=nn /SL&-=nn) to set the modem
to another channel. The reference frequency can be any frequency that is suitable for the
channel space.
Note! The SATELLINE-3AS type “center frequency” is not supported by this modem type.
7.3 Updating Firmware
The Firmware can be updated in two ways:
o By using terminal program. Instructions to use this method are given by request.
o By using Configuration Manager (CM).This requires the SATEL Configuration Manager, a
cable adapter between the module and a PC with serial port.
The firmware of SATELLINE-M3-TR1 is stored in a flash memory. If needed the software is easily
updated by SaTerm terminal program. Please see the user guide of SaTerm for more details.
The SATEL Configuration Manager is configuration and setup software that has been explained
in a separate User Manual.