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8M083X25 R14
APX Series P25 Interface
DVRS Installation & Programming Guide
–
PART II
January 2019
Page 127 of 153
BER Test Setup
The following is required in order to be able to measure BER on the Tweaker Monitoring
Screen:
1. Connect a Radio Communication Testset or equivalent to the DVR Antenna port
and set it up as described below:
•
Program TX frequency matching the programmed DVR Rx Frequency
•
PATTERN 1011
•
MODULATION P25
•
NAC 293
•
ALGID 80
•
MFID 00
•
TGID 1
•
SID 000001
2. Set the
Test Mode
AND
P25 Rx Modem Test
– Test Mode
to
‘YES’
3. Lower the Radio Communication Testset transmit level until desired BER
Threshold is observed on the Monitoring screen.