OpenAMIP setup for iDirect iNFINITI & Evolution
98-145510-E Appendix C: VSAT modem settings C-11
The option file must use the following information:
Section in the
option file
Requirements
[SATELLITE] The modem provides RX and TX frequency information via a data
connection to the VSAT system.
The VSAT system has an extended 8 Watt BUC with LO up conversion
frequency of 12.8 GHz.
— Example: “tx_lcl_osc = 12800.000000”
[MOBILE]
The iDirect modem must be set to mobile unit and receive the GPS
information from the ACU with the command “w <Valid> <Lat> <Lon>
<Time>”.
Example: “is_mobile = 1”
Tx handshake must not be enabled in the iDirect modem.
Example: “tx_handshake_enabled = 0”
[ODU]
The VSAT system can work either using the Rx or Tx 10 MHz reference
signals provided by the modem or using its own built-in 10 MHz
reference signal. It is recommended to use the Tx 10 MHz reference
signal from the modem. See also page 6-6 (setup of modem profiles).
Example: “odu_rx_10_mhz = 1”
The VSAT system needs the Tx 10 MHz reference signal in order to
allow TX ON.
Example: “odu_tx_10_mhz = 1”
Table C-8: Information in the VSAT modem option file
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