Nera SatLink 1000, User Manual

Page: 34 / 120

Nera SatLink Terminal User Guide – Revision P
32
5. Configure the EIRP level that the SatLink terminal shall transmit with using the CLI command
dvb tx eirp <level>
.
Example:
dvb tx eirp 42
sets the output to 42 dBW.
Save the configuration by using the CLI command
save config
.
6.
Verify the transmitter configuration using the CLI command
dvb tx show
.
Example:
# dvb tx show
Satellite (DVB) TX Configuration
--------------------------------
Auto start : Disabled
Population ID : 2
IDU output power : -15 dBm
EIRP : 42.0 dBW
Default CW Frequency: 14.488000 GHz
AAL5 Encapsulation : VC Mux
DVB Transmitter Status
----------------------
State : Off
#
The CW frequency to use for measurements during the calibration procedure is obtained from the
service provider or satellite operator. If the CW frequency needs to be changed, please consult
Appendix F.2
7. Contact the satellite operator / control centre to clarify the line-up procedures for transmission power
calibration and fine adjustment and verification of polarisation of the Nera SatLink terminal.
8. Have contact by phone with the control centre when performing the following measurements.
9. Issue the CLI command
dvb tx calibrate
to start the automatic transmitter power calibration
routine.
Ask the control centre if they can detect the transmitted CW. If they are not able to see the CW
at the specified frequency and expected output power level, please power off the Nera SatLink
Terminal immediately.
Example:
# dvb tx calibrate
Using preconfigured CW frequency 14.123000 GHz
RF Wanted= 30.7, RF Measured= 0.0, If output= -30.1
RF Wanted= 30.7, RF Measured= 30.6, If output= -26.6
ODU output level stabilised
Saving configuration
Note: CW transmission is still enabled to allow
for crosspolarisation adjustment of the antenna
Configuration Saved