Chapter 2, Making Measurements

Average Power

Average Power

Overview

Average power is a time-averaged broadband measurement of the transmitted

 

signal strength at the RF IN/OUT port on the front panel of the PCS Interface.

 

The average power measurement is “uncorrelated”; it does not require the

 

reference signals (Even-Second clock and 19.6608 MHz timebase) needed for

 

other tests.

Transmitter Port

RF IN/OUT

Figure 6

CAUTION:

NOTE:

Requirements

Before performing any transmitter measurements, make sure that the power level applied to the RF IN/OUT port of the PCS Interface does not exceed the published limit. For CDMA base station signals this is 1 Watt (+30 dBm). You may have to use an external attenuator or directional coupler, depending on the power output for your transmitter. Signal levels greater than the specified maximum can cause damage to the test equipment.

The test procedures outlined in this section require that you have already configured the Test System as outlined in chapter 1, "Getting Started".

•You should know the following about your base station and setup: ❒ The base station channel number setting.

•You must have a means of controlling the base station to turn on the transmitter, set the channel number, and so forth.

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