Battery Threshold - Motorola GM950E Service Manual

Radio Tuning Procedure
7.3

Battery Threshold

The radio uses 2 battery threshold levels Tx High and Tx Low to determine the battery condition.
1. From the Service menu, select Tx Alignment.
2. Select Battery Thresholds to open the battery thresholds tuning window.
3. Set the supply voltage to the value indicated for Tx High.
4. Press the Tx High Program button to store the softpot value for Tx High.
5. Set the supply voltage to the value indicated for Tx Low.
6. Press the Tx Low Program button to store the softpot value for Tx Low.
7. Close the window by pressing Cancel.
7.4 Transmitter Power
IMPORTANT:
The advanced power setting technology employed in the GM950E/GM950i makes use of two
reference power level settings along with parameters describing the circuit behaviour. To set the
reference points requires tuning on two power level settings, a high power level setting, and a low
power level setting.
1. From the Service menu, select Tx Alignment.
2. Select RF Power to open the RF power tuning window. The window will indicate the transmit
test frequencies to be used.
3. Select Point 1 value of the Þrst frequency.
4. Press Toggle PTT to key the radio. The status bar will indicate that the radio is transmitting.
5. Measure the transmitter power on your power meter.
6. Enter the measured value in the box Point 1.
7. Select Point 2 value of the Þrst frequency.
8. Measure the transmitter power on your power meter.
9. Enter the measured value in the box Point 2.
10. Press Toggle PTT to dekey the radio.
11. Repeat steps 3 - 10 for all test frequencies shown in the window.
12. Press Program to store the softpot values.
3-10
To set the transmitter power for customer applications use the Per Radio
window under the Edit menu and set the ÒLevel 1Ó and ÒLevel 2Ó powers to
the desired values. Only if the transmitter components have been
changed should the following procedure be performed.
Maintenance