M8SL2-00-002-812 T854 Initial Tuning and Adjustment C3.21
© Copyright Tait Electronics Limited August 2004. All rights reserved.
4. Reset the power to the operational output level. Verify that the alarm output is
now OFF.
5. Turn the transmitter OFF.
Reverse alarm
1. Connect the power meter to the transmitter output.
2. Key up the transmitter and set the output power level to the operational output
level.
3. Unkey the transmitter.
4. Replace the power meter with the appropriate valued open-ended attenuator.
This should generate the desired return loss/reflected power for the desired high
reverse-power alarm threshold-point.
5. Key up the transmitter.
6. Adjust RV1, the reverse-power alarm preset, until the reverse alarm LED (DS1)
just comes ON.
7. Turn the transmitter OFF.
Channel Select Setup
In the default state of the plug-in board, no channel is selected (channel select disabled).
1. The desired channel can be selected by S1. Set the switches on S1 to the desired
channel number, in binary format.
Note: The switch on position is a binary ‘0’ and the off position a binary ‘1’.
2. To disable channel select, set all switches back to the off position.
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