Tait TM8000 Series Service Manual page 211

Task 3 —
Check RF Output Power
TM8100 Mobile Radio Service Manual
May 2004 © Tait Electronics Limited
If the power supplies are correct, check the RF output power of the
transmitter. This check assumes that the test probe from the test set is
connected to the RF connector.
1. With the radio in transmit mode, note the RF output power
measured by the test set, and note the current reading on the DC
power supply. The power should exceed 32 W. The current
should exceed 5 A (UHF) or 4 A (VHF).
2. If the RF output power measured in Step 1 is correct, go to Step
3. If there is no power at all, go to Step 5. If the power is wrong
or too low, go to Task 14.
3. If the current measured in Step 1 is correct, go to Step 4. If it is
not, go to Task 11.
4. Enter the following CCTM commands in turn and measure the
RF output power in each case:
326 4
326 3
326 2
326 1
If the power remains unchanged at all settings, go to Task 5 and
then Task 8.
5. If the radio draws some current but there is no power output at
the antenna, go to Task 11. If no current is drawn, go to Task 4.
Diagnosis of Faults on Main Board 211