Performance Testing; Figure 6-26. Front End Filter Alignment Screen (Uhf2) - Motorola APX 3000 Basic Service Manual

Radio Alignment Procedures: Performance Testing
2. Click on the slider or the "New Softpot Value" text box to select which frequency to tune.
3. Apply RF test signal input with no modulation at -90 dBm on the Test Signal Frequency
displayed at the top of the screen.
4. Left-click the Autotune button.
5. Repeat the steps 2 to 4 for all frequencies.
Left-click the Program All button on the screen to save the tuned values in the radio.
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:

Figure 6-26. Front End Filter Alignment Screen (UHF2)

Figure 6-28, Figure 6-29, and
Generate
B/W: NB
Test frequency (Ex: 851.0625 MHz)
-50.0 dBm
RF I/O
Figure 6-30).
6-21