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.
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