Bird Technologies 3140 Display - Manual (Page 15)

Installing & Operating Instructions - TPM
5
Normal Operation
Note:
Coupler ports must be terminated to ensure accurate
power measurements. Terminate both forward and reflected
coupler ports in 50 ohms. Failure to terminate these ports will
result in inaccurate power measurements.
1. Install the TPM to the transmission line. Refer to “Installing
the TPM” on page 4.
2. Apply DC input power to the TPM.
3. Apply RF power to the TPM.
4. Use a voltmeter to measure the forward voltage and reflected
voltage.
Note:
These voltages will be between 0 V (no power) and 4.0
V (full scale power). The forward and reflected voltages are linear.
Note:
The full scale reflected power is 1/10 the value of the
full scale forward power.