SatLink VSAT User Guide
Publication no. 101557
Copyright © 2009 – STM Group, Inc.
Page 46 (160)
Example:
# odu lnb 20
selects the Invacom SPV-1SM LNB. Use the command odu show to view the ODU configuration:
# odu show
Antenna Configuration
---------------------
Type Patriot TX-090KU - 0.9m
Tx Gain at 14.25 GHz 40.9dB
Transmitter (BUC) Configuration
-------------------------------
Type Invacom TUL-204 (14.0-14.5 GHz)
Local oscillator 13.050000 GHz
24V DC supply On
Receiver (LNB) Configuration
----------------------------
Type Invacom SPV-1SM (10.70-12.75 GHz)
Local oscillator - High band 10.600000 GHz
Local oscillator - Low band 9.750000 GHz
Oscillator switching frequency 11.700000 GHz
LO Switching mode 22kHz
13/18V DC supply 13V
Finally save the configuration to flash using the command
save config.
The STM SatLink VSAT must be restarted for the new ODU configuration to take effect.
9.2.2 VSAT geographical position
In order to calculate the delay to the satellite correctly for the logon burst the STM SatLink VSAT must
be configured with its own position.
The STM SatLink VSAT by default uses the timing compensation procedure as specified
by SatLabs. For using the STM SatLink VSAT with a DVB-RCS Hub requiring
proprietary timing compensation refer to Appendix M.
1) Find the position of the location where installing the STM SatLink VSAT using a standard GPS.
The STM SatLink VSAT position is entered in one of the following two formats:
• degrees, minutes, 1/100 minutes, and direction
• degrees, minutes, seconds, and direction
To convert between the two formats use the formula 1/100 minutes = (seconds/60) x 100
Entering the direction as a number {0,1} selects format a, while entering the direction as a
letter {‘n’,’s’,’e’,’w’} selects format b.
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