User's Manual

14221-1200-4010, Rev. B

7. Turn on the XG-100M mobile radio, if not already on, via the control head’s on/off volume control

(or externally-mounted switch). Refer to the operator’s manual as necessary.

8. Switch the XG-100M mobile radio to a VHF low band analog channel.

9. Key the transmitter via the microphone’s PTT button.

Transmit only for as long as needed to take the measurement, then immediately disable the

transmission.

10. Compare the wattmeter’s reading with the target RF output power range of between 0.9

and 1.2 watts (100 watts ±1 dB).

This transmit output power range assumes the LBPA is currently configured for maximum transmit

power. The LBPA may be configured with a lower RF output power (30 watts) per its MRU

configuration.

For the LBPA, because a 20 dB RF attenuator used, any measurement from the wattmeter

must be multiplied by 100 to obtain the radio’s actual output power in watts.

11. If the wattmeter reading is within the range, record the measured value in the appropriate space on

the data collection form near the end of this manual (page 90).

If the wattmeter reading is outside the range, verify the MRU’s and PBPA’s power source voltage

(i.e., battery voltage) is within the specified range, recheck all connections and measure the RF output

power again. If this fails to produce a reading within the range, replace the units and repeat this

procedure. If problems persist, contact the Technical Assistance Center (see page see page 21).

12. Un-key the transmitter by releasing the microphone’s PTT button.

NOTE