Park Air T6M, User Manual

Page: 49 / 70

Chapter 7 - Maintenance
This chapter details the scheduled maintenance required by the T6M base station.
It also provides fault finding guidance.
SCHEDULED MAINTENANCE
Scheduled maintenance to the T6M base station involves the following checks:
(1) Transmit power and frequency accuracy test. This check should be carried out annually.
(2) Receiver sensitivity check. This check should be carried out annually.
(3) Battery replacement (applicable only to base stations fitted with the internal battery option).
The life of the battery depends upon its usage; refer to ‘Battery Replacement’ on page 52.
Test Equipment Required
The test equipment necessary to complete the scheduled maintenance is listed in Table 8.
Table 8. List of test equipment
Item Description
1 Through-line wattmeter.
2 20 dB attenuator (>15 W continuous power rating).
3 VHF Frequency counter.
4 RF signal generator.
5 AF wattmeter.
6 Test lead for connecting the base station to the AF wattmeter. [See next heading.]
Test Lead
The test lead (Table 8, item 6) connects the base station to the AF wattmeter during receiver sensitivity
tests. The lead connections are detailed in Table 9.
Table 9. Test Lead Connections
7-Pin DIN Plug
(connects to base station's
Microphone connector)
AF Wattmeter Connector
Pin 5, receiver audio monitor Input
Pin 7, earth 0 V
T6M Base Station User Guide
Page 49