User's Manual

Performing Tests

RX Gain Test

Chapter 4

O:\Manuals\E6385A_Amps\Book\perftst.fm

Select and Run the Test

Select and run the RX Gain Test as follows:

Step 1. Take the affected radios and the amplifier to be tested out of service. Use a PC to dial

into the MSC and enter the craft shell, or call the MSC and instruct switch personnel as

to which radio to turn off.

Step 2. From the Lucent AMPS/TDMA Test Main Menu screen, select the Test Selections

field. The Test Software will display the Test Selections Menu screen.

Step 3. Select the RX Gain Test field. The Test Software will display the RX Gain Test screen.

Step 4. Select the Channel Number field. Enter the channel number of the radio by either

turning the knob to the desired number and pressing it, or using the DATA ENTRY keys

to enter the number, then either pressing the knob or the

Enter key to select it.

NOTE The number that you enter in the Channel Number field represents the output frequency

of the device to be tested.

In the case of a PCS Minicell, you must enter a channel number that sets the input

frequency of the RU to the proper 1900-MHz-band frequency to obtain the desired

850-MHz-band output frequency from the translator.

In the case of an 850-MHz Base Station, the input and output frequencies will be the

same.

Step 5. Select the Generator Output Level [dBm] field. Enter the signal level from the Test

Set into the amplifier by either turning the knob to the desired value and pressing it, or

using the DATA ENTRY keys to enter the value, then either pressing the knob or the

Enter key to select it.

CAUTION Make certain to enter a level in the Generator Output Level [dBm] field that will not

produce an output level greater than 60 milliwatts from the unit being tested. Input

levels to the ANT IN port greater than 60 milliwatts might damage the Test Set.

Step 6. Press the

k1 (Run) key. The Test Software will display a connection diagram.

Step 7. Connect two cables as shown in the connection diagram.

Step 8. Press the

k1 (Proceed) key. The Test Software will measure the losses through the test

cables, then display a second connection diagram.

Step 9. Connect the amplifier to be tested as shown in the second connection diagram.

Step 10. Press the

k1 (Proceed) key to perform the measurement.

Review the Results

The Test Software will display the gain and re-measure it continuously to allow for real

time adjustment.

Press the

k1 (Proceed) key to return to the RX Gain Test screen.