Comtech EF Data MD2401 - Manual (Page 51)

MD2401 L-Band Multi Demod Installation and Operation Manual User Interfaces
MN-MD2401 4–19
Revision 7
Command Module Eb/No Threshold 2C08h
Command Module Default Configuration 2C30h
1
Applies to base band frequency modems only.
2
Applies to LB/ST modem configurations only.
4.5.12 Detailed Command Descriptions
4.5.12.1 DMD2401 Demodulator
Note: All bytes preceded by a * are not applicable to the DD2401/DD2401L and should be
considered as reserved and there returned values ignored.
Opcode: <2401h>
Query a Demodulator’s Configuration and Status
Query Response
<1> Number of Nonvol
bytes
See Paragraph B.6. This is the number of configuration bytes
and is an offset to the start of the status block.
Configuration Bytes
<4>
<4>
<1>
<4>
<1>
<1>
<1>
<1>
<1>
<1>
<1>
<1>
Frequency
Data Rate
Sweep Boundary
External
Reference
Freq. Reference
Source
Input Level Limit
Demodulation
Type
Convolutional
Decoder
Reed-Solomon
Reed-Solomon N
Reed-Solomon K
Reed-Solomon T
Binary Value, 1 Hz Steps
Binary Value, 1 bps Steps
Sweep Limits (Max of
± 42 kHz)
Unsigned Binary Value in Hz
0 = Internal, 1 = External
Lower Level Limit, Binary Value, 1 dB Steps, Negative Sign Implied
0 = QPSK, 1 = BPSK, 2 = 8PSK, 4 = OQPSK
0 = None, 1 = Viterbi 1/2 Rate, 3 = Viterbi 3/4 Rate, 5 = Viterbi 7/8
Rate, 7 = Sequential 1/2 Rate, 9 = Sequential 3/4 Rate, 11 =
Sequential 7/8 Rate, 14 = Trellis 2/3, 20 = TPC 0.793 2D, 21 = TPC
0.495 3D, 23 = TPC ½, 24 = TPC ¾, 25 = TPC 7/8, 26 = TPC 21/44
0 = Disable, 1 = Enable
Unsigned Binary
Unsigned Binary
Unsigned Binary