HIGH DATA RATE RECEIVER
HDR-4G+ USER’S MANUAL
Ref. DTU 100782
Is.Rev 3.5
Date: June 1, 2021
© Safran Data Systems – IMP000074 e14r1
This document is the property of Safran Data Systems.
It cannot be duplicated or distributed without expressed written consent.
Control 4.5.4.4.1
Parameters in this window are described in DMU.
Reserved (Unused). Set to Internal
BER measurement mode (simulated data for BER analyzis):
Off BER measurement stopped (for reset purposes)
File Simulated data from a file on the disk (note 1)
PseudoDxx Pseudo random data, using from PN generator xx
(where xx = 7, 10, 11, 15, 23 or 31. See Section
3.6.1.1.1 )
Note: In File mode, the BER is computed by comparing the original frame to the reconstructed frame
from the frame synchronizer. The BER value is not significant if the frame synchronizer is not correctly
configured and locked.
File number for BER in file mode: enter any value from 1 to N for each
associated DPU.
Total number of bits to process for BER measurement in Pseudo mode
Resolution step: 65536 bits. In File Mode, Infinite accumulation.
Reset the BER counter for the active Demodulation window.
Monitoring 4.5.4.4.2
Status and alarms in this window are described in DMU.
Upper Banner 4.5.4.4.3
See section 4.5.4.1.2.1 .
Other Status & Alarms 4.5.4.4.3.1
For BER measurement in PRN mode, on I & Q merged and if the demodulation mode is not UQPSK:
Display a BER value between 0 and 1, or
No data if the demodulation chain is unlocked or if the total number of bits
regenerated by the bit synchronizer is less than the programmed value for
parameter BER Counter.
Number of bits in error since the BER counter was reset.
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