Comtech EF Data SNM-1002 User Manual
Page 149
SNM-1002 LinkSync
Modem
Revision 2
Remote Control Operation
MN/SNM1002.OM
A–23
Interface
Read Error
Status
Command:
Response:
Where:
tttt = FRM (FRAME) or 2047 (indicates type of
error being read).
x = < or > (data modifier to indicate that the error
rate is less than or greater than the returned
value).
m.m = 1.0 to 9.9 (error rate mantissa).
ee = 1 to 99 (error rate exponent).
This command returns frame or 2047 error rate.
The 'IRE_' configuration command is used to
select reading of frame or 2047 errors.
Notes:
1.
The 'x' (< or >) parameter is only
returned if the error rate has exceeded the
computational resolution of the system.
2.
'No Data' is returned if the error rate
cannot be calculated.
3.
'Sampling' is returned if not enough data
is currently available to calculate the error rate.
Eb/N0
Status
Command:
Response:
Where:
x = < or > (data modifier to indicate that the
Eb/N0 is less than or greater than the returned
value).
nn.n = 1.0 to 99.9 (Eb/N0 value).
Notes:
1.
The 'x' (< or >) parameter is only
returned if the Eb/N0 has exceeded the
computational resolution of the system.
2.
'No Data' is returned if the Eb/N0 cannot
be calculated.
3.
'Sampling' is returned if not enough data
is currently available to calculate the Eb/N0.
Modulator
Rate
Status
Command:
Response:
Where:
nnnn = 1/2 (QPSK 1/2), [coder rate], 3/4 (QPSK
3/4), 7/8 (QPSK 7/8), BP12 (BPSK 1/2), 8P23
(8PSK 2/3).
mmmm.mmm = Data rate in kHz.
Demodulat
or Rate
Status
Command:
Response:
Where:
nnnn = 1/2 (QPSK 1/2), [decoder rate], 3/4
(QPSK 3/4), 7/8 (QPSK 7/8), BP12 (BPSK 1/2),
8P23 (8PSK 2/3).
mmmm.mmm = Data rate in kHz.