Checking Receiver Sensitivity (Self-Test Method) (Iv And D) - Motorola ASTRO 25 GTR 8000 Manual

MN003286A01-E
Chapter 5: GTR 8000 Base Radio Optimization
a Key the transmitter in the base radio and readjust the generator output level until 12 dB
SINAD is indicated on the service monitor. Record this level.
Less than 1 dB of degradation should occur due to the transmitters being keyed.
b Dekey the transmitter.
12 Click Stop SINAD measurement to stop the measurement.
13 Unselect the SINAD measurement box.
14 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.
15 Remove and restore the following connections to the base radio:
a Remove the service monitor GEN port connection from the base radio Antenna Port.
b Restore the antenna connection to the Receive Antenna Port.
5.11.7

Checking Receiver Sensitivity (Self-Test Method) (IV and D)

When and where to use:
Use this procedure to check the receiver sensitivity for the station without any test equipment. The
receiver 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 transceiver module in Configuration/Service Software (CSS) through an Ethernet
connection. See Connecting Through an Ethernet Port Link on page
2 From the menu, select Service → Test And Measurement Screen. Select the ASTRO BER
RSSI Report tab.
3 If the base radio is not already in Service Mode perform the following substeps, otherwise go to
step 4.
a Click Change to Service Mode.
b At the confirmation screen, click OK.
The base radio halts activity in the current mode and switches operation to the requested
mode.
c Re-open the Test And Measurement Screen as described in
4 Click Start Receiver Test.
A confirmation dialog box appears indicating test progress. After a few seconds, the test
concludes with a pass or fail message.
5 Click OK.
6 If no further testing is needed, place the base radio in Normal Mode, as follows:
a Click Change to Normal Mode.
192
140.
step 2.