Performance Testing - Motorola APX 1000 Basic Service Manual

Radio Alignment Procedures: Performance Testing
6.7

Performance Testing

6.7.1 Bit Error Rate
This section describes the Bit Error Rate (BER) test of the radio's receiver at a desired frequency
(see Figure 6-27,
6.7.1.1 Bit Error Rate Fields
Set up the R2670 Communication Analyzer as follows:
1. Connect the RF Input port of the radio under test to the RF IN/OUT port of the R2670 Service
Monitor.
2. Set up the R2670 Service Monitor:
- In the Display Zone, select PROJ 25 STD mode and set the meter to RF DISPLAY.
- In the RF Zone, configure the analyzer as follows:
RF Control:
Preset:
Freq:
Output Level:
Gen RF Out:
- In the Audio Zone, select the 1011 Hz PAT code and set the deviation to "PROJ25Dev:
2.83 kHz ~".
The bit error rate screen contains the following fields:
• Rx Frequency:
This field selects the Receive Frequency directly in MHz.
Figure 6-26. Front End Filter Alignment Screen (UHF2)
Figure 6-28, Figure 6-29
Generate
B/W: NB
Test frequency (Ex: 851.0625 MHz)
-50.0 dBm
RF I/O
and Figure 6-30).
6-21