Motorola MTP700 - Duplex Test (Phone;Private Mode)

TEST SETUP & TESTING MTP700/MTP750 Portable Radios / Basic Service Manual 5-11
Call to Mobile
1. Press the radio “Mode” key and change to “Private” mode.
2. Press the “RF Gen Level” soft key and enter “-90dBm”.
3. Press the “Call Mobile” soft key and select “Private Call” on the IFR. Verify that four
beeps are heard from the speaker.
4. Press the “Abort Call” soft key.
Duplex Test (Phone/Private Mode)
Digital Duplex Test (Tx)
1. Press the “Mode” key of the radio and select either “Private” or “Phone” mode.
2. Dial a random 4 digit number (eg “9359”) using the Alphanumeric keys of the radio
and press the “Send” key.
The following results are displayed on the IFR “Manual Test” Screen.
Note: Read the measured parameters only when the highlighted bars disappear from
every parameter in IFR screen.
- Power Profile: Passed
- Burst Power Required Results: 28-31.5dbm
- Timing Error: <
0.25 Symbols
- Frequency Error: -/+ 80Hz
- Vector Error: Max 10% RMS
Max 30% Peak
Max 5% Residual
3. Press the “Talkback” soft key.
4. Speak into the Handset Microphone and hear your speech (after a short delay) from
the handset Earpiece.
Note: For more details, press the “Duplex Test” mode key.
Press the “Duplex Test (Tx)” soft key. The “Digital Duplex Test” results will be displayed
on the IFR screen providing you with either one of the following:
- Bar charts measurement capabilities showing Tx Power, Frequency Error and
Vector RMS in one screen, or
- Tx Power (more details in Power Analyser), or
- Frequency Error (more details in Spectrum Analyser), or
- Vector RMS (more details in Vector Analyser)