Digital Duplex Test (Transmitter) Using Ifr 2968; Assessing Dalt Test - Motorola MXP600 Manual

4.11

Digital Duplex Test (Transmitter) Using IFR 2968

Procedure:
1 On the radio, press Menu→Contact→Contact 1→Send.
The following results are displayed on IFR Manual Test Screen.
Burst Power Required Results: 28.0–32.0 dBm (Class 4) or 30.5–34.5 dBm
(Class 3L) or 33–37 dBm (Class 3)
Power Profile: Passed
Burst Timing: ± 0.25 Symbols
Vector Error: Max 10% RMS, Max 30% Peak, Max 5% residual
Frequency Error: ± 100 Hz
2 Speak into the microphone of the handset.
You hear your speech (after a short delay) from the internal earpiece of the handset.
NOTE: If you need more details, press Duplex Test.
3 Press Duplex Test (Transmitter).
The Digital Duplex test results are displayed on the IFR screen providing you with the following
bar charts measurement capabilities:
• Power
• Vector RMS
• Frequency Error
4 Perform one of the following actions:
For...
Power Analyzer Graph
Spectrum Analyzer Diagram
Vector Analyzer Diagram
5 Press End on the handset.
4.12

Assessing DALT Test

Procedure:
1 Verify that the radio is turned OFF.
Then...
a Press power ana.
b Check that the power frame falls within the limits.
a Press spec ana.
b Monitor the Transmitter frequency.
a Press vector ana.
b Monitor the constellation diagram.
c Press vector diagram.
d Monitor the vector diagram.
e To zoom in on the constellation, press rotated vector.
MN006362A01-AL
Chapter 4 : Test Setup and Testing
45