6881096C73-O June 11, 2003
Radio Alignment Procedures: Transmitter Alignments 6-13
1. Select TX Deviation Balance (Compensation) from the Tuner Main Menu. The screen will
indicate the transmit frequencies to be used.
Figure 6-11. Tx Deviation Balance (Compensation) Alignment Screen
2. Left-click the highest frequency field first.
3. Left-click the PTT Tone Low button.
4. Left-click the PTT Toggle button on the screen to enable transmission. The screen indicates
whether the radio is transmitting. Wait approximately 5 seconds until the voltage shown on R-
2670, or the deviation shown on the 8901 Analyzer, stabilizes.
5. Measure and record the AC voltage value from the R-2670 Analyzer or the deviation value
from the 8901 Analyzer.
6. Left-click the PTT Tone High button.
7. Adjust the softpot value until the measured deviation/voltage, when using the high tone, is
within
±1.5% of the value observed when using the low tone.
8. Repeat steps 3-7 for the remaining frequencies.
9. Left-click the Program All button on the screen to dekey the radio and save the tuned values.
10. Left-click the Close button on the screen to return to the Tuner Main Menu.
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