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DMD50 Universal Satellite Modem
RX MINOR (menu)
BUFF UNDERFLOW {Pass/Fail, Unmasked/Masked}
BUFF NEAR EMPTY {Pass/Fail, Unmasked/Masked}
BUFF NEAR FULL
BUFF OVERFLOW {Pass/Fail, Unmasked/Masked}
RX DATA ACTIVITY {Pass/Fail, Unmasked/Masked}
SAT AIS
DnI FRAME LOCK {Pass/Fail, Unmasked/Masked}
DnI M-FRAME LOCK
INSERT CRC
T1/E1 SIGNALING
IFEC LOCK
OFEC LOCK
INTERLEAVER
RS UNCORR WORD {Pass/Fail, Unmasked/Masked}
TPC IFEC LOCK
EBNO (dB)
RX AGC LEVEL
IBS BER
MN-DMD50 Revision 4
Indicates that a Doppler Buffer underflow has occurred.
Indicates that the Doppler Buffer is about to underflow.
{Pass/Fail, Unmasked/Masked}
Indicates that the Doppler Buffer is about to overflow.
Indicates that a Doppler Buffer overflow has occurred.
Indicates that there is no Rx Data activity.
{Pass/Fail, Unmasked/Masked}
Indicates that AIS has been detected in the receive satellite data
stream.
Indicates if drop/insert data is frame locked.
{Pass/Fail, Unmasked/Masked}
Indicates if drop/insert data has multiframe lock.
{Pass/Fail, Unmasked/Masked}
Indicates if the Circular Redundancy Check is passing in PCM-
30C and PCM-31C Modes.
{Pass/Fail, Unmasked/Masked}
The interface is not deleting the expected signaling information.
{Pass/Fail, Unmasked/Masked}
Indicates that the Framing Unit is unable to find the expected
framing pattern.
{Pass/Fail, Unmasked/Masked}
Indicates that the Reed-Solomon Decoder is not locked.
{Pass/Fail, Unmasked/Masked}
Indicates that the Reed Solomon Interleaver is not synchronized.
Indicates status of the Reed Solomon uncoded word fault.
{Pass/Fail, Unmasked/Masked}
{Pass/Fail, Unmasked/Masked}
Indicates that the Eb/No is outside of limits.
{Pass/Fail, Unmasked/Masked}
Indicates if Rx level is below allowable limits.
{Pass/Fail, Unmasked/Masked}
User Interfaces
4–25
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