User Manual

Table Of Contents
Functionality
99-137719-D Confidential - For internal use 6-29
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Startup & configuration
If set to e.g. APAC the satellite search algorithm will only search for the APAC (Asia-
Pacific) satellite.
6.6.3 Doppler correction
Terminals mounted on vehicles, trains or aeroplanes moving at a velocity of more than
200 km/h must use Doppler correction to compensate for the Doppler effect (relevant
for BGAN class 4, 6, 7, 10, 11 and 15).
The parameter .doppler_correction is used to activate frequency doppler correction.
Parameter name
protocols.bgan.functionality
External
access
Type /
Domain
Values
[min;max]
Comment
.satellite_selection r/w t4 §4 string /
flash
n.a. APAC, EMEA,
AMER, MEAS,
AUTO
(Default is AUTO)
Table 6-31: Satellite selection
Note
If antenna pointing (see 8.5.5 on page 8-36) is running the integrator must
first stop it, before changing .satellite_selection.
To stop the antenna pointing the integrator will have to wait for response to
any outstanding MSG_BGAN_CHECK_POWER or
MSG_BGAN_CHECK_WAVEFORM and then send
MSG_BGAN_SKYSCAN_RESULT(Result=Not tracking) to the RM.
Parameter name
protocols.bgan.functionality
External
access
Type /
Domain
Values
[min;max]
Comment
.doppler_correction r/w t3 §4 int / ram [0..1] 0=disable (default),
1=enable
Table 6-32: Special service: Doppler correction