Figure 88: HPD Service Monitor - Rx Meter Subscreen and Soft Keys (Aeroflex 3900
Series Service Monitor)
12 On the RF Control Settings window of the service monitor, enter lower values in the RF Gen
Level field until 1% BER is displayed on the CSS Test And Measurement Screen. Compare
the value in the RF Gen Level field to the Receive Sensitivity 1% BER specifications for your
HPD base radio configuration. See GTR 8000 Base Radio Specifications on page 40.
NOTICE: Take the cable and splitter loss into account.
13 Enter –70 dBm in the RF Gen Level field.
NOTICE: This input value should produce a 0.01% or better BER on the Test And
Measurement Screen in CSS. If it does not, contact Motorola Solutions Support Center
(SSC). See Motorola Solutions Support Center
on page 219.
14 When finished testing, perform the following steps on the CSS Test And Measurement Screen:
a Click Stop BER Measurement.
b Click Stop Pattern Transmission.
15 If no further testing is needed, place the base radio in Normal Mode, as follows:
a Click Change to Normal Mode.
b At the confirmation screen, click OK.
The base radio halts activity in the current mode and switches operation to the requested
mode.
5.12.5
Checking Receiver Sensitivity (Self-test Method) (HPD)
When and where to use:
Use this procedure to check the High Performance Data (HPD) receiver sensitivity for the base radio
without any test equipment. The base radio uses a factory calibrated low-level noise source at the
receiver input to check performance. This procedure can be performed remotely.
Procedure:
1 Connect to the base radio in Configuration/Service Software (CSS) through an Ethernet
connection. See Connecting Through an Ethernet Port Link on page 140.
2 From the menu, select Service → Test And Measurement Screen.
MN003286A01-E
Chapter 5: GTR 8000 Base Radio Optimization
206
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