4.9
Digital Duplex Test (Tx) using IFR 3901/IFR 3902/IFR 3920
Procedure:
1 On the radio, press Menu→Contact→Contact 1→Send.
The following results are displayed on the Tx Measurements window.
Burst Power Required Results: 28.0–32.0 dBm (Class 4) or 30.5–34.5 dBm
(Class 3L)
Power Profile: Passed
Burst Timing: ± 0.25 Symbols
Vector Error: Max 10% RMS, Max 30% Peak, Max 5% residual
Frequency Error: ± 100 Hz
2 Press Call Mobile→Group Call→TALKBACK.
3 Speak into the microphone of the handset.
You hear your speech (after a short delay) from the internal earpiece of the handset.
4 If you need more details, select
at the Rx Measurement Window.
Option Actions
Power Analyzer Graph
a Select Power→Profile Full.
b To view the detail of Profile Full, select and press
Select.
c To minimize the window, press Select.
d To view the rest of the power analyzer graphs, select
any item under Power drop-down list.
Vector Analyzer Diagram
a Select Mod Accuracy→Vector Error.
b To view the detail of Vector Error, select , and press
Select.
c To minimize the window, press Select.
d To view the rest of the vector analyzer graphs, select
any item under Mod Accuracy drop-down list.
5 Press End on the handset.
4.10
Digital Duplex Test (Tx) 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)
Power Profile: Passed
Burst Timing: ± 0.25 Symbols
Vector Error: Max 10% RMS, Max 30% Peak, Max 5% residual
Frequency Error: ± 100 Hz
MN002465A01-AN
Chapter 4 : Test Setup and Testing
42
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