Specifications

EASTAR UHP-1000 SERIES SATELLITE ROUTER
INSTALLATION AND OPERATION MANUAL, V. 2.3
(SW VERSION 2.2.9)
© ROMANTIS 2010 27 www.romantis.com
2.5.3 SCPC demodulator control commands
Most commands of the demodulator come into force as the carrier search operation is
initiated. If the search is already under way the values come into force immediately. The
essence of this behavior is that if demodulator receives the carrier the user gets maximum
possibilities to configure the demodulator without interrupting the reception. This is
particularly actual for a remote configuration.
demod lnb power on|off - LNB power control
Switching LNB power supply on and off. Comes into force immediately.
demod search 0-200000 - Carrier search bandwidth (+/-KHz)
Maximum deviation from the assigned frequency during carrier search. Full search bandwidth (to both sides) is
equal to the double value. If the command is issued with the 0 value, the bandwidth does not change, and the
LNB offset value is reset to 0.
demod reference off|on - TDMA RX connector 10 MHz output
Activation of 10 MHz reference signal on TDMA Rx input.
The router demodulator is provided with two sets of carrier settings referred to as profiles A
and B. Both profiles are needed when there is a necessity to shift to a new carrier while
working on the former and without deleting settings of the former (so as to be able to go
back if necessary).
Demodulator strategy of operation is searching the carrier over all permitted profiles until it
is found. When carrier is lost the search is resumed. Subsequent commands are designed to
configure profile parameters. New parameters come into force during search operation.
demod profile a|b enable|disable - Enable/disable profile
Permits or prohibits profile operation.
demod polarization a|b vertical|horizontal - Polarization
Controls polarization by switching LNB supply voltage 13/18 V (if LNB power supply is allowed by the demod lnb
power command).
demod frequency a|b 950000-2150000 - Central frequency (KHz)
Carrier frequency in KHz.
demod symbolrate a|b 100-34000 - Symbol rate (KSps)
Carrier symbol rate in kilosymbols per second. Recommended minimum demodulator symbol rate is not less
250 ksps. In some applications the demodulator may stable work with a lower symbol rate.
demodulator mode a|b s1|s2 - DVB-S1 or DVB-S2 mode select
DVB-S1 or DVB-S2 demodulator operation mode.
demod viterbi a|b 1/2|2/3|3/4|5/6|7/8|auto - FEC: Viterbi
Type of correction code for DVB-S1 mode. With the auto parameter and in DVB-S2 mode the decoder is self-
tuned.
demod spectrum a|b on|off|auto - Spectrum Inversion
Spectrum inversion during signal reception. The specifics of transmitters. If inversion is detected we recommend
to switch it on the transmitting side to allow reception without inversion (a better way) or switch it on in receive
mode using this command. This reduces carrier search time.
2.5.4 Additional commands
demod activate a|b - Activate carrier profile
Immediate initiation of search by the assigned profile. The command is usually used only for just made changes
in the demodulator configuration in case the demodulator is already receiving any carrier. Initiation of search by
the switched off profile is allowed. In this case the search is performed once. If the carrier is detected the
demodulator will receive it. If the carrier is not detected the demodulator will switch over to another profile and will
not return to the switched off profile afterwards.