SatLink VSAT User Guide
Publication no. 101557
Copyright © 2009 – STM Group, Inc.
Page 142 (160)
Please check immediately with 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 STM SatLink VSAT immediately
The operator control centre will instruct you to adjust your power in positive or negative steps. Never
make power adjustments steps larger than 5 dB. Please update the transmitted power level using the
above
dvb tx cw on command until the desired power level is measured at the control centre.
When the operator confirms that the correct power level has been reached, then turn off the CW
transmission with
dvb tx cw off before storing this power level as the nominal IDU power level to be
used for transmission. Type the CLI command:
dvb tx outpow <tx output power>
where “tx output power” is the power level in dBm. Verify the setting by issuing the CLI
command
dvb tx show
and save the setting by issuing the CLI command
save config
In the following example a complete power correction routine is carried out.
Example:
dvb tx cw on -30 14100000
The operator instructs you to increase power by 5 dB (i.e. pow = -30 + 5 = -25). Type:
dvb tx cw on -25
The operator instructs you to decrease power by 3 dB. (i.e. pow = -25 - 3 = -28). Type:
dvb tx cw on -28
The operator instructs you to increase power by 1 dB. (i.e. pow = -28 + 1 = -27). Type:
dvb tx cw on -27
The operator confirms that the correct power setting is obtained. Confirm the nominal power setting by
storing this power level. To configure the nominal power level, turn off the CW transmission with:
dvb tx cw off
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