Testing Procedure - Motorola DCS StarTac Service Manual

DCS 1800 StarTAC CELLULAR TELEPHONE
3.

TESTING PROCEDURE

All information required to perform the desired tests and measurements should be obtained from the communication analyser's
user manual.
Ensure that the unit being tested is capable of both initiating a call to the analyser, and receiving a call from the analyser.
Confirm that the displayed Temporary Mobile Subscriber Identity (TMSI), International Mobile Equipment Identity (IMEI),
and dialled number are correct. When a call is in progress the following tests should be carried out on channels 512, 700
and 885. The recorded results must be within the acceptable stated limits, if the unit being tested passes all the tests it should
be taken as functioning correctly. If the unit being tested fails to conform with any of the expected measurements, it should be
taken as faulty and repaired accordingly. The following table states the required tests and tolerances.
TEST TO BE PERFORMED
Transmit average phase error (RMS) at peak power
Transmit average phase error (Peak) at peak power
Transmit average frequency error at peak power
Transmit power error at level 0 (30 dBm)on CH700
Transmit power error at level 5 (20 dBm)on CH 700
Transmit power error at level 10 (10 dBm)on CH 700
Transmit power error at max and min power on CH 512
Transmit power error at max and min power on CH 885
Transmit burst mask at max and min power
Receive Bit Error Test for Class II Residual (at -102 dBm)
Receive Frame Erasure Rate for RES II (at -102 dBm)
Receive level (Rx_LEV) indication at -100 dBm
Receive level (Rx_LEV) indication at -45 dBm
Receive Quality (Rx_QUAL) indication for Rx_LEV tests
Note: 1. The transmit average test values should be derived from 10 separate readings.
2. The receive signal strength for transmit measurements should be -85 dBm.
3. The receive test values should be derived from the reception of 20K bits of data.
Allow for the loss between the antenna port and the RF SMA connector on the test adaptor. The test
specifications are written for the power levels at the antenna
16
LOWER LIMIT
-180 Hz
-2 dB
-3 dB
-4 dB
-3 dB
-3 dB
Within DCS specification envelope
4
4
-104 dB
-49dB
68P09304A85
UPPER LIMIT
5
20
+180 Hz
+2 dB
+3 dB
+4 dB
+3 dB
+3 dB
2%
0.12%
-96 dB
-41 dB
not above 2
DTest4
19/07/97