TEST SETUP & TESTING 380-430MHz MTH800 TETRA Handportable Terminal / Basic Service Manual 4.1 - 9
Note:RSSI results will flash on the screen every few seconds.
The display shows: SERV: xx
RSSI: -81
SQE: xx
Disregard the “SERV” and “SQE” results.
The actual measured result should be:
{-80dBm (IFR RF Gen Level) -0.5dB(adapter)-XdB (cable)} +/-1 dB.
RSSI = {Radio RSSI Result – [Antenna assembly Adapter (dB) + Insertion loss
of the Cable (dB)]}.
To stop the “Trace” process, perform the following. When performing steps 11.
thru 14., make sure that you press the handset keys sequentially (less than a
second between every consecutive press):
11. Press the “Star” Key.
12. Press the “#” Key.
13. Press the “Menu” Key.
14. Press the “Right Arrow” Key.
15. Scroll to “Cells Info”
16. Press the “Select” softkey.
17. Press the “Stop” softkey.
Press twice the “Back” softkey.
Transmitter Tests
1. Verify that your terminal is in “Group Mode”.
2. Press the “RF Gen Level” softkey. Enter “-90dBm” by pressing the data keys
and “RF Gen Level” Key.
3. Press the “PTT” of the terminal and monitor the IFR “Manual Test” screen
which displays the Burst Power, Power Profile, Timing Error, Vector Error, and
Frequency Error.
Note: You have to hold the PTT in the pressed position long enough to enable
you to read the results.
- Burst Power Required Results: 28-32dbm.
- Power Profile: Passed.
- Timing Error: <
0.25 symbols.
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