Technical data

Chapter 13 381
Power Meter
Making an Average Power Measurement
Power Meter
NOTE Connect the Power Meter as close as possible to the power amplifier/duplexer
output. Do not use a coupled port. The levels of the sensors do not function well at
the levels provided by a coupled port.
Making a Basic Average Power Measurement
To make an average power measurement, you connect the power sensor and cable,
zero and calibrate the meter, and then take a reading.
When should you zero the Power Meter?
• Every time you use the Power Meter.
• When a 5 degree C. change in temperature occurs.
• Whenever you change the power sensor.
• Every 24 hours.
• Before measuring low level signals—for example, 10 dB above the lowest
specified power for your power sensor.
When should you calibrate the Power Meter? Every time you cycle the power on
and off.
To Make a Basic Average Power Measurement:
Step Notes
1
Mode
2[Power Meter]
3 [Zero] Follow the Zeroing Wizard, which displays
instructions on the screen.
4 [Continue]
5 [Ref CF]
6 Enter the reference cal
factor using the
numeric keypad.
The reference cal factor is printed on the label of the
power sensor head.
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