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Functions and Measurements
Making a Power Measurement with USB Power Sensor
Making an Average Power Measurement
The average power measurements provide a key metric in
transmitter performance.
Base station transmit power must be set accurately to
achieve optimal coverage in wireless networks. If the
transmit power is set too high due to inaccurate power
measurements, undesired interference can occur. If the
transmit power is set too low, coverage gaps or holes may
occur. Either case affects system capacity and may translate
into decreased revenue for service providers. Average power
can be measured for the channel of interest while the base
station is active. All other channels should be inactive.
Average power is a broadband measurement. If other signals
are present the analyzer will also measure their power
contributions.
Figure 3-25 Connection with base station
To make an average power measurement, you connect the
power sensor and cable, zero and calibrate the meter, before
making a measurement. Zeroing of the power meter will
occur automatically:
• 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.
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