EASTAR UHP-1000 SERIES SATELLITE ROUTER
INSTALLATION AND OPERATION MANUAL, V. 2.3
(SW VERSION 2.2.9)
© ROMANTIS 2010
45
www.romantis.com
Symptoms
Possible reasons
Actions
No carrier on the satellite or its
level is insufficient.
Verify availability of the carrier and its
level with spectrum analyzer.
Contact Hub administrator and
investigate if the carrier is properly
transmitting and local weather conditions
not attenuate the signal.
Low Rx carrier level
Measure carrier signal to noise level with
a spectrum analyzer.
Verify if antenna is properly pointed to
the satellite and there no obstacles in the
direction to the satellite.
Check the integrity of the film of
antenna’s feed horn and absence of
moisture in it.
LNB failure
Replace LNB to the spare one
High rate of
errors of Rx path
(LOCK indicator
is not lighting
constantly)
Bad weather conditions
The quality of reception may temporary
decrease during intensive rainfall, for,
thunderstorm cloudiness.
Check if there is no snow or ice on the
antenna surface and on the feed horn.
Low signal to noise level
Check Eb/No in demodulator’s statistics
(See section 2.5.4).
Verify if antenna is properly pointed to
the satellite and there no obstacles in the
direction to the satellite.
Check the integrity of the film of
antenna’s feed horn and absence of
moisture in it.
Low Rx carrier level
Interferences
Check Eb/No in demodulator’s statistics
(See section 2.5.4).
Contact Hub administrator and
investigate if the carrier is properly
transmitting and local weather conditions
not attenuate the signal
Station is not
transmitting
(Reception is
normal: LOCK
indicator is
lighting, but TX
indicator is off)
Wrong network setting
Check Tx frequency and symbol rate of
the modulator. Make sure that
transmission is enabled (see Section 2.7)
Transmission of the terminal is
not allowed by Hub (only for
TDM/TDMA terminal)
Contact Hub administrator
Station is not
transmitting
(Reception is
normal: LOCK
indicator is
lighting, TX
indicator is
blinking, but
transmission is
not received by
Hub/opposite
station)
IF Tx cable failure
Check Tx cable and make sure that its
connectors are properly connected to the
BUC and the router.
BUC is not powered
Check if BUC power is switched on (see
section 2.7)
Disconnect Tx IF cable from BUC and
make sure that 24 VDC is available on
the connector.
BUC failure
Replace the BUC on the spare one
Other symptoms
Other reasons
Contact your dealer or service center
