AutoTune for Motorola APX Series Radios User Guide
15
4.10. Rx Duty Cycle Adjustment
RF Control Port
Frequency
Modulation
Generate
RF IN/OUT Test Frequency FM
Table 4-21. Analyzer Configuration for Rx Duty Cycle Adjustment alignment
4.10.1. Alignment
Note: This alignment is only performed for APX 8000, APX 6000 Enhanced, APX NEXT,
and APX 900 portable models.
See Motorola APX Family Tuner Help for a description of this alignment.
The radio is placed into Test Mode at the first Rx Test Frequency. Depending on the
radio model under test, the analyzer generates a CW signal at either -30 dBm or at -60
dBm. The radio softpot is then auto-aligned to minimize phase error. The results are
written to the test log file.
Name
Description
Result
Pass or Fail. Pass unless radio reports an error.
Frequency
Test Frequency
Low/High Amp Err
Low/High side amplitude error (rad)
Low/High Phase Err Low/High side phase error (rad)
Low/High SBS
Low/High side band suppression factor (APX
900 only)
Old Softpot
Original radio softpot setting
New Softpot
Radio softpot setting after alignment
Table 4-22. R Duty Cycle Adjustment results
