RS-232 Remote Control Protocol
Reference Guide: SM6610, SM6615, SM6620 and SM6625 Satellite Modulators
Page 5-9
ST.RE.E10152.2
Modulation/coding mode
0x00 - Reserved
0x01 - DVB
1
Modulation format
0x00 - QPSK
0x01 - BPSK
0x02 - 8PSK
0x03 - 16QAM
1
Spectrum sense
0x00 - Normal
0x01 - Inverted
1
Spectrum roll-off factor (Alpha)
0x00 - Reserved
0x01 - Reserved
0x02 - 20%
0x03 - 25%
0x04 - 30%
0x05 - 35%
1
Modulation On/Off
0x00 - Off
0x01 - On
1
Reserved
Set to 0x0000
2
Reserved
Set to 0x00
1
IF Power
Set IF power in 0.1 dB steps
Byte 1: IF Power bits (15..8)
Byte 2: IF Power bits (7..0)
Value as signed 16-bit integer.
e.g.: 0x000A = 1.0 dBm,
0xFFFF =
−
0.1 dBm
2
IF Frequency
Set IF frequency in units of 1 kHz
Byte 1: Frequency bits (23..16)
Byte 2: Frequency bits (15..8)
Byte 3: Frequency bits (7..0)
e.g.: 70 MHz = 0x11170
3
General Control
Bit 0
1
1
S/W reset initiates a Modulator reset
0 - S/W reset
Normal
Enabled
1..7 - Reserved
Set to 0
Reserved
Set to 0x09C4
2
Reserved
Set to 0x02
1
Reserved
Set to 0x00
1
IF Carrier Control
0x01 - IF Carrier Off
0x02 - IF Carrier On
1
Rate Adaptation Control
0x00 - Off
0x01 - On
1