Make Receiver Measurements - HP 8921A User Manual

Cell site test set

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Table of Contents

Chapter 10, Signaling Encoder (AF Generator 2)

Using the EDACS Encoder

Make Receiver Measurements

1. Press the RX key to access the RX TEST screen.

2. Turn AF Generator 1 On. (Position the cursor in front of the Off entry in the lower part

of the AFGen1 To field, and press the ON/OFF key.) The entry should now read

3.00. The working channel is now being modulated at a 1 kHz rate (AFGen1 Freq)

with 3 kHz deviation (AFGen1 To) in addition to the subaudible EDACS signaling

from the encoder (AFGen2).

3. Set the volume control on your mobile to about half of full scale. (You may or may not

hear the 1 kHz tone from your radio's speaker, depending on how the external speaker

connection affects the speaker.)

4. Turn up the VOLUME of the Test Set. You should be able to hear the 1 kHz tone.

Your mobile's SINAD is displayed, as well as the

You can now change the RF Generator's

or select the SINAD measurement to list and access other available audio

measurements.

of the audio output.

setting to check sensitivity,