Freedom R8000 Series, Руководство пользователя

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AutoTune for Motorola APX Series Radios User Guide
35
6.2. Reference Frequency
RF Control Port Frequency Modulation Attenuation
Monitor RF IN/OUT Test Frequency FM 20 dB
Table 6-3. Analyzer Configuration for Reference Frequency
6.2.1. Alignment
The radio is placed into Test Mode at the highest TX Test Frequency and commanded
to transmit. Using a best linear fit algorithm, two frequency error measurements are
taken at two different radio softpot values. These frequency error measurements are
used to calculate the softpot value which minimizes frequency error. After programming
this new softpot value into the radio, the radio softpot is fine tuned until minimum
frequency error is detected. The frequency error is compared against test limits and the
final results written to the log file.
Dual-Band: This alignment is only performed at a single test frequency. The test
frequency is the highest test frequency for the highest frequency band.
Name Description
Result Pass or Fail. Frequency Error within Max Limit, Min Limit
Frequency Test Frequency
Freq Error Measured frequency error after alignment
Min Limit Minimum Limit (inclusive) for frequency error
Max Limit Maximum Limit (inclusive) for frequency error
Old Softpot Original radio softpot setting
New Softpot Radio softpot after alignment
Table 6-4. Reference Frequency alignment results
6.2.2. Test
The radio is placed into Test Mode at the highest TX Test Frequency and commanded
to transmit. The frequency error is measured by the analyzer and compared to test
limits. The final results are written to the log file.
Dual-Band: This test is only performed at a single test frequency. The test frequency
is the highest test frequency for the highest frequency band.