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Comtech EF Data MM200 User Manual

Page 117

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MM200 High-Speed Microwave Modem

Appendix A

TM086 – Rev. 4.1

A-17






<4>


<4>


<4>


<4>

<4>

<4>

<2>


<4>

<4>







Channel Baud
Rate

Channel Offset
Frequency

Channel AGC
Integrator

Channel SNR

Channel CBA

Channel UBA

Input Level


Pre FEC BER

Post FEC BER

Bit 3 = FIFO empty status
Bit 4 = Sync lock status
Bit 5 = FIFO reload status
Bit 6 = FIFO pos status
Bit 7 = Track fault status

7000000 - 200000000


Binary value in Hz


AGC integrator


Signal-to-noise ratio, 00.00 - 99.00 dB, implied decimal point

Correctable blocks accumulator

Uncorrectable blocks accumulator

Channel input level in dBm. Signed implied decimal point
(-265 means –26.5 dBm)

Floating point format following IEEE Standard 754*

Floating point format following IEEE Standard 754*

* Refer to Appendix C for IEEE Standard 754 – Floating Point
Numbers


Opcode: <0x20B1>

Query a selected demodulator’s channel configuration

Command Data Field 1 Byte

<1>

Selected channel
number

0 = channel1
1 = channel2
2 = channel3
3 = channel4

Query Response

<1>




<1>




<1>

Selected channel
Number



Channel Major
Alarm Mask




Channel Minor
Alarm Mask

0 = channel1
1 = channel2
2 = channel3
3 = channel4

0 = Mask, 1 = Allow
Bit 0 = Demod daughter board FPGA status
Bit 1 = RF PLL lock detect status
Bits 2 - 7 = Spare

0 = Mask, 1 = Allow
Bit 0 = QAM lock status
Bit 1 = FEC lock status
Bit 2 = FIFO full status
Bit 3 = FIFO empty status
Bit 4 = Sync lock status
Bit 5 = FIFO reload status
Bit 6 = FIFO pos status