Figure 84: CSS Test And Measurement Screen
9 Display the base radios transmission readings on the service monitors Rx Meter subscreen, as
follows: A panel of soft keys displays on the right side of the screen, including two Reset keys.
a Click the Rx Meter subscreen.
A panel of soft keys displays on the right side of the screen, including two Reset keys.
b Click the Reset Acquire soft key on the right side of the screen. This action re-synchronizes
the test set with the incoming signal.
c Click the Reset Meters soft key on the right side of the screen. This stops, clears, and
restarts the acquisition of data for the data display fields.
Figure 85: HPD Service Monitor - Rx Meter Subscreen, Reset Soft Keys (Aeroflex 3900
Series Service Monitor)
10 Compare the value displayed in the Signal Power field to the base radio Tx Power Out
specification that matches your base radio configuration. See GTR 8000 Base Radio
Specifications
on page 40.
NOTICE: Account for cable loss in this comparison.
The output power reference plane is the output connector of the power amplifier. The
loss of the transmitter output cable (PA output to the back of the base radio) is 4% at
700/800 MHz. However, the base radio software allows the transmitter output power to
be set at 10% above rated value.
11 Note the value that displays in the Freq. Error field. Tolerance should be +/- 50 Hz.
12 Note the Error Vector Magnitude (EVM) value that displays in the EVM avg field. The value
should be less than or equal to 10%.
MN003286A01-E
Chapter 5: GTR 8000 Base Radio Optimization
202
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