Verifying Transmitter Performance (Analog Operation); Figure 80: Configuration For Modulation Fidelity Measurement (Aeroflex 2975 Series Service Monitor Or Equivalent Analyzer) - Motorola ASTRO 25 GTR 8000 Manual

Figure 80: Configuration for Modulation Fidelity Measurement (Aeroflex 2975 Series
Service Monitor or Equivalent Analyzer)
7 Record the Bit Error Rate (BER), Modulation Fidelity Error, Symbol Deviation, and Carrier
Error and FREQ readings from the P25 Uplink Data (in the Options menu) for use in digital
Receiver Testing.
8 Click Stop Pattern Transmission to turn off the test tone.
9 Disconnect the service monitor and reconnect the transmit antenna.
10 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.
5.11.10

Verifying Transmitter Performance (Analog Operation)

When and where to use:
To verify that the base radio transmitter meets the ASTRO
be forced to transmit a 1 kHz tone.
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.
The Test and Measurement Screen appears.
3 Select the ASTRO Test Pattern tab.
4 If the base radio is not already in service mode perform the follows substeps, otherwise go to
step 5.
a Click Change to Service Mode.
Chapter 5: GTR 8000 Base Radio Optimization
® 25 system standards, the base radio must
140.
MN003286A01-E
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