6-18
Radio Alignment Procedures
: Performance Testing
Figure 6-22. Front End Filter Alignment Screen (UHF2)
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
).
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:
- 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.
RF Control:
Generate
Preset:
B/W: NB
Freq:
Test frequency (Ex: 851.0625 MHz)
Output Level:
-50.0 dBm
Gen RF Out:
RF I/O
Содержание APX 4000
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Страница 351: ...Title Page ASTRO APX APX 2000 APX 4000 Digital Portable Radios Section 4 APX 2000 APX 4000 Two Knobs ...
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Страница 492: ...A 2 Accessories Notes ...
Страница 496: ...Notes B 4 EMEA Warranty Service and Technical Support Further Assistance From Motorola ...
Страница 500: ...C 4 LACR Replacement Parts Ordering and Motorola Service Centers Motorola Service Centers Notes ...
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