Rf Tests; Receiver Tests; Transmitter Tests - Motorola MTP850 S Service Manual

5.2 - 8 MTP850 TETRA Handportable Terminal / Basic Service Manual

RF Tests

Receiver Tests

Note: This test requires programming the radio. Refer to 6802974C10 TETRA
Customer Programming Software (CPS).
Verify that your radio is in "Group Mode".
1. Using the Depot version CPS, enable the Test Page field in the radio
2. Turn the radio ON.
3. Check that registration and "ITSI ---/---: xxxx" is displayed on the IFR "Manual
STATUS: REGISTRATION (ITSI ATTCHED)
GSSI: XXXXXXX SELECTED

Transmitter Tests

1. Verify that your radio is in "Test Group Mode".
2. Press the "RF Gen Level" soft key. Enter "-90dBm" by pressing the data keys
3. Press the "PTT" of the radio and monitor the IFR "Manual Test" screen which
Note: You have to hold the PTT in the pressed position long enough to enable
4.
codeplug and flash the radio.
Test" screen
and "RF Gen Level" Key.
displays the Burst Power, Power Profile, Timing Error, Vector Error, and
Frequency Error.
you to read the results.
- Burst Power Required Results: 28–32dbm.
- Power Profile: Passed.
- Timing Error: < 0.25 symbols.
- Vector Error: Max 10% RMS, Max 30% Peak, Max 5% residual.
- Frequency Error: -/+ 100Hz.
Press the "Clear Down" soft key, to proceed with other tests.
TEST SETUP & TESTING 806-870MHz