Specifications

Chapter 4 96
Tests
TEST_11 RX Timebase Tuning Range
TEST_11 RX Timebase Tuning Range
NOTE This test cannot be run using an HP/Agilent 8922E.
Description This test verifies that the mobile station can tune its reference
oscillator to match that of the base station.
This test does not verify any specific GSM, DCS or PCS
recommendation, but may be used to simulate typical mobile operating
conditions such as: “hot and cold” start up when the phone’s oscillator is
likely to be off frequency; doppler frequency shift; or frequency error in
the GSM system. During testing using the pre-defined procedures, the
default frequency offset of the HP/Agilent 8922 is first set to +0.05 ppm.
The frequency error at Radio Frequency Channel Numbers 1, 63, and
124 is measured. Then, the measurement is repeated with the
frequency offset at
−0.05 ppm. When running this test, it is possible
that the phone will loose camp when the timebase of the HP/Agilent
8922 is moved. If this happens and the phone does not regain camp,
cycle the power on the mobile so that it responds to the page from the
HP/Agilent 8922. To change the frequency offset, modify the parameter
“RT test set reference offset”. The default value is
±0.05 ppm; this
corresponds to the GSM 11.10 specified accuracy for a base station
under normal conditions.
Specifications
Parameters
Spec
no.
Description Units GSM900
Default
Lower
Limit
GSM900
Default
Upper
Limit
DCS1800
Default
Lower
Limit
DCS1800
Default
Upper
Limit
PCS1900
Default
Lower
Limit
PCS1900
Default
Upper
Limit
7 TX average
frequency
error
Hz −90.0 90.0 −180.0 180.0 −190.0 190.0
Parm
no.
Description Units GSM900
Default
Value
DCS1800
Default
Value
PCS1900
Default
Value
3 CP base station color code code no. 5.0 5.0 5.0
4 CP public land mobile network color
code
code number 1.0 1.0 1.0
5 CP serving cell (BCH) ARFCN chan. number 25.0 600.0 600.0
6 CP local area code code no. 1.0 1.0 1.0
7 CP mobile country code code no. 1.0 1.0 1.0