Motorola APX 1000 Basic Service Manual page 296

6-6
To align the reference oscillator:
Select the Reference Oscillator alignment screen. See
1. Make sure the Communication Analyzer is in Manual mode.
900 MHz
• Set the base frequency to 940.9375 MHz
2. Adjust the reference oscillator's softpot value with the slider until the measured value is as
close as possible to the frequency shown on the screen. See
NOTE: Increases the slider decreases the frequency and vice versa.
3. Left-click the Program All button on the screen to dekey the radio and save the tuned values.
4. Left-click the Close button on the screen to return to the Transmitter Alignments menu.
Figure 6-5. Reference Oscillator Alignment Screen (900 MHz)
Table 6-1. Reference Oscillator Alignment
Band
900 MHz
Radio Alignment Procedures: Transmitter Alignments
Figure 6-5.
Table
Target
±100 Hz
6-1.