Park Air Systems Limited BT6M Manuel D’Utilisation

 PERFORMANCE TESTING

Page 6-2

T6M SERIES MOBILE SERVICE MANUAL – SM/16/1.0

The following sections detail basic field testing requirements of the mobile to confirm
correct RF operation.  These tests should be performed on a low, a middle and a
high channel to ensure that the RF performance is consistent across the mobile’s
entire range.  Whilst these tests do serve to indicate the nominal RF performance,
there are relatively few adjustments available to field personnel, so mobile’s failing to
meet these basic tests should be returned to the supplier for correct repair or
retuning.

The tests require the following equipment:

♦

 Bench Power Supply

♦

 Digital Multimeter

♦

 RF Power Meter

♦

 Oscilloscope

♦

 RF Signal Generator

Ensure that the range measurement capabilities of each item is appropriate for the
mobile under test.  Suitable alternatives, such as a comprehensive RF test set, may
be substituted where available.

For this test and all others, ensure that the mobile is connected to a nominal 13.2V
DC supply.

1. With the mobile configured to operate normally, check that the mobile

draws <100mA when it is switched off.

2. Turn the mobile on and check that the mobile draws <2A when in normal

standby mode (receive mode, muted).

1. Place the mobile into test mode (for details of test mode operation, please

refer to Section 5.9).

2. Key up the mobile and, with no modulation applied, check the following:

I. Current draw is <6.2A

II. Transmit power is >7W and <10W

III. Transmitter frequency is within 1.0ppm