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User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem
4-60 TM051 – Rev. 5.8
Opcode: <2400h> Query a modulator’s configuration and status
Query Response
<1> Number of nonvol
bytes
Configuration Bytes
<1>
<4>
<2>
<1>
<4>
<4>
<4>
<1>
<1>
<1>
<1>
<1>
<1>
<2>
<1>
<1>
<1>
Mode
Frequency
Strap Code
Filter Mask
Data Rate
External EXC Clock
External Reference
Freq. Reference
Source
Modulation Type
Convolutional
Encoder
Reed Solomon
Scrambler Control
Scrambler Type
Transmit Power Level
Differential Encoder
Carrier Control
Carrier Selection
0 = Closed Net. 1 = IDR, 2 = IBS, 3 = D&I
Selects the IF Frequency in Hz. The range is 50 MHz to 180
MHz for the 70/140 MHz type modems and 950 MHz to 1750
MHz for the L-Band modems.
Binary value
0 = INTELSAT, 1 = EUTELSAT, 2 = CLOSED NET1
Binary value, 1 bps steps
Binary value, 1 Hz steps. 256 kHz to 10 MHz, In 8 kHz
increments
Binary value, 1 Hz steps. 256 kHz to 10 MHz, In 8 kHz
increments
0 = Internal, 1 = External, 2 = High stability
0 = QPSK, 1 = BPSK, 2 = 8PSK, 3 = 16QAM, 4 = OQPSK
0 = None, 1 = Viterbi 1/2 Rate, 2 = Viterbi 2/3 Rate, 3 = Viterbi
3/4 Rate, 4 = Viterbi 5/6 Rate, 5 = Viterbi 7/8 Rate, 6 = Viterbi
8/9 Rate, 7 = Sequential 1/2 Rate, 8 = Sequential 2/3 Rate, 9 =
Sequential 3/4 Rate, 10 = Sequential 5/6 Rate, 11 = Sequential
7/8 Rate, 12 = Sequential 8/9 Rate, 13 = Trellis 1/2 Rate, 14 =
Trellis 2/3 Rate, 15 = Trellis 3/4 Rate, 16 = Trellis 5/6 Rate, 17
= Trellis 7/8 Rate, 18 = Trellis 8/9 Rate, 19 = SEQ 3/4 Rate,
20 = TPC .793 2D, 21 = TPC .495 3D, 22 = TPC .325 3D
0 = Disable, 1 = Enable
0 = Disable, 1 = Enable
0 = None, 1 = IBS Scrm, 2 = V35_IESS, 3 = V35_CCITT, 4 =
V35_EFDATA, 5 = V35_FAIRCHILD, 6 = OM73, 7 = RS
Scrambler, 8 = V35_EFRS, 9 = TPC Scrambler
Signed value. +50 to -300 (5.0 to -30.0 dBm). The range is
+5.0 to –20 dBm for the 70/140 MHz type modems and –5.0 to
–30 dBm for the L-Band type modems (implied decimal point)
(two’s compliment).
0 = Off, 1 = On, 2 = EF Mode*
*Available in uncoded QPSK modulation for compatibility.
0 = Off, 1 = On
0 = Normal. 1 = CW, 2 = Dual, 3 = Offset, 4 = Pos Fir, 5 = Neg
Fir