Rack-Mount RDMS
TM
Telemetry Receiver
157
Quasonix, Inc.
9 Appendix A
– Bit Error Rate Testing
There is a separate BERT for each data path in the receiver (0 main channel, 1 combiner channel). By default all
commands are targeted to the current “tracking channel” (TC command), 0 or 1. If the tracking channel is set to 2
(tracking both channels), then the channel must be explicitly specified.
The results of the test can be displayed using the BE command with no parameters or a continuous display can be
produced using BE D 1. BE D 0 turns off the continuous display.
Table 13: Bit Error Rate Serial Commands
Mnemonic
Name
Description
BE ?
Bit Error Rate Help
Provides help for using the bit error rate commands
BE [c]
Bit Error Rate Status
Report bit error rate status
[c] is optional and indicates channel 0 or 1
If channel is omitted, the current tracking channel (TC)
is used
If TC is 2, a channel number is required
Examples:
BE
Show the bit error rate status
BE 1
Show the status of channel 1
BE D
Bit Error Rate Status
Continuous
Report a continuous display of bit error rate status
Examples:
BE D 0 Show continuous bit error rate status is Off
BE D 1 Show continuous bit error rate status is On
BE [c] P n
Set Bit Error Test
Pattern
Sets bit error test pattern
[c] is optional and indicates channel 0 or 1
If channel is omitted, the current tracking channel (TC)
is used
If TC is 2, a channel number is required
P indicates a preset or fixed pattern length
where 'n' is one of:
PN6, PN9, PN11, PN15, PN17, PN20, PN23, PN31
or, for a fixed pattern length of 2 to 32
(fixed patterns are automatically determined)