Transmit High Power Tuning; Transmit Low Power Tuning; Figure 5-3. Tx High Power Window (High Power) - Motorola CP185 Basic Service Manual

Radio Programming and Tuning: Transmitter Alignment Options
5.5.1

Transmit High Power Tuning

1. Click the Read icon to initiate communication with the radio.
2. Under the Alignment menu, select Tx Power, then select High (Figure 5-3. Tx High Power
Window (High Power)).
3. Press PTT Toggle. This will key up the radio at the 1st test frequency (F1).
4. Read the Transmit Power from the Service Monitor.
5. Adjust the High Power Level as shown in Table 5-3. by using either the Left/Right arrows on the
slider or Up/Down arrows on the Working Softpot box.
6. Press PTT Toggle to dekey the radio.
7. Goto the next frequency point by clicking on the next Working Softpot value and press PTT
Toggle.
8. Repeat steps 4 – 6 for the remaining test frequencies (F2–F5).
9. Press Program to commit the softpot values into the codeplug.
10. Exit the Transmit High Power function.
11. If the radio uses only high power channels, proceed to adjust modulation. If low power channels
are used, perform Transmit Low Power Tuning as defined.
F1
F2
F3
F4
F5
5.5.2

Transmit Low Power Tuning

1. Click the Read icon to initiate communication with the radio.
2. Under the Alignment menu, select Tx Power, then select Low (Figure 5-4. Tx Low Power
Window (Low Power)).
3. Press PTT Toggle. This will key up the radio at the 1st test frequency (F1).
4. Read the Transmit Power from the Service Monitor.
5. Adjust the Low Power Level as shown in Table 5-3 on page 5-6 by using either the Left/Right
arrows on the slider or Up/Down arrows on the Working Softpot box.
6. Press PTT Toggle to dekey the radio.
7. Goto the next frequency point by clicking on the next Working Softpot value and press PTT
Toggle.

Figure 5-3. Tx High Power Window (High Power)

5-5