Specifications

UHP-1000 SATELLITE ROUTER
INSTALLATION AND OPERATION MANUAL, V. 2.5
(SW VERSION 2.5.X)
© ROMANTIS 2012 30 www.romantis.com
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.
AUTO WORKS ONLY IN DVB-S1 MODE, IN DVB-S2 MUST BE ALWAYS SET MANUALLY.
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.
demod compensate - Compensate LNB frequency offset
This command operates only when demodulator is receiving the carrier. Current carrier frequency
offset determined by the demodulator is saved in the Offset special parameter and later is added to
all frequencies during all search operations. This allows compensation of the LO LNB deviation
constant part and speedup the search owing to the narrower search bandwidth. The command
immediately restarts the carrier search with new parameters. Offset reset to 0 takes place during
entering the demod search 0 command (the search bandwidth assigned earlier is NOT changed in this
case).
demod bert qpsk|re|data - Bit error rate meter
Initiation of the bit error rate (BERT) analyzer on the demodulator. There are three BERT modes:
QPSK - bit error rate in the signal coming from satellite (prior to correction)
REED-Solomon - bit error rate that have not been corrected by Viterbi decoder
DATA - bit error rate for data at the demodulator output
Example: