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Remote Control Operation
Corrected
Command:
BER
Response:
Corrected
Command:
BER Log
Response:
Examples:
B–16
<add/CBER_'cr'
>add/CBER_xm.mE-ee'cr''lf']
<add/CBEL_'cr'
>add/CBEL_t.t;s1, s2, s3...sn'cr''lf']
[No new compiled data from last
poll]
>add/CBEL_1.0 'cr''lf']
[Momentary lock in 32 time
intervals: 2.0E-3, 5.2E-7, 1.0E-10,
<1.0E-12]
>add/CBEL_1.0; ,,,,,,,2003, 5207,
1010, <1012,,,,,,,'cr''lf'
SDM-9000 Satellite Modem
Where:
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).
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.
Where:
t.t = Time corrected BER samples in seconds ('0.1' to
'9.9').
; = At least one data point has been logged.
s1 to sn = Corrected BER samples in the format of
xmmee (where: x = the optional data modifier '<' or '>'
[less than or greater than], mm = the corrected BER
mantissa ['10' for 1.0 to '99' for 9.9], ee = the corrected
BER negative exponent ['00' to '99']).
Error data samples are compiled at the normal system rate
indicated by the time parameter (t.t). The samples are
stored in a 32-element FIFO. When the 'CBEL_' command
is received, the samples in the FIFO are formatted and
returned as indicated. The FIFO is then flushed. If the
FIFO becomes full, the oldest sample will be lost as the
current sample is written.
Notes:
1. The most recent sample is represented by 'sn',
while the least recent sample is represented by 's1'.
2. Data delimited by a comma (',') will be returned for
all time intervals logged.
3. The optional data modifiers '<' and '>' are only
present if the error rate exceeds the computational
resolution of the system.
Rev. 4
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