COBHAM Sailor 900 VSAT, Technical Manual

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Serial setup for iDirect iNFINITI 5000 & Evolution X5
C-14 Appendix C: VMU settings 98-133966-G1
• latlong <lat> <long>
The signal strength command: rx snr is issued every 2 seconds. The rest
of the commands are issued one by one every 2 seconds between each
signal strength command. Meaning each of the other commands is
issued every 8 seconds.
The signal strength in the ACU display and web interface is shown as
dB., e.g: 8.5 dB. The minimum value for Internet connection is around 2-
3 dB.
C..2.2.3 VSAT modem option file
The option file of the VSAT modem must also include the following
information:
Section in
option file
Description
Satellite
information Receive frequency of the transponder. Used with “rx
freq” command Transmit frequency if known
otherwise just a dummy tx frequency (e.g. 1.450
MHz). Used with “tx freq” command.
SAILOR 900
VSAT
information The modem provides RX and TX frequency
information via a data connection to the SAILOR 900
VSAT.
The single-cable solution makes it possible to
configure the VSAT modem to use any LO frequency
in the range from 9.6 GHz to 11.3 GHz. The SAILOR
900 VSAT will tune to the correct Ku-Band frequency
and provide the correct L-Band frequency to the VSAT
modem.
The SAILOR 900 VSAT has an extended 8 Watt BUC
with LO up conversion frequency of 12.8 GHz.
GPS The iDirect modem must be set to mobile unit and
receive the GPS information from the ACU with the
command “latlong <lat> <long>”.
Tx handshake must be disabled in the iDirect modem.
Rx 10 MHz
The SAILOR 900 VSAT 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
VSAT modem profile –
New entry and Edit
on page 6-23.
Tx 10 MHz The SAILOR 900 VSAT needs the Tx 10 MHz
reference signal in order to allow TX ON.
Table C-6: Requirements for VSAT modem option file, Serial
SAILOR900TM.book Page 14 Monday, September 16, 2013 11:01 AM