Specifications

Chapter 5 116
Test Specifications
7 TX Average Frequency Error
7 TX Average Frequency Error
Description This specification sets the pass/fail limits for measuring the mobile
station transmitter’s frequency error.
If a selected limit is exceeded, an “F” (for fail) is displayed next to the TX
N avg frequency err measurement result, where N is the number of
averages set in parameter RX BER/FER results.
NOTE ”Average”, in phase and frequency error measurements, only applies
when parameter TX phase/freq measurement averages is not set
to its default value of 1.
Default values The GSM900 default lower limit value is
−90 Hz. The GSM900 default
upper limit value is 90 Hz. The DCS1800 default lower limit value is
−180 Hz. The DCS1800 default upper limit value is 180 Hz. The
PCS1900 default lower limit value is
−190 Hz. The PCS1900 default
upper limit value is 190 Hz.
Example If you want your test procedure to report a failure if the average
frequency error from the mobile station transmitter exceeds
±95 Hz for
GSM 900,
±185 Hz for DCS1800, and ±195 Hz for PCS1900, you would
enter
−95 (−185 or −195) in the lower-limit column and 95 (185 or 195)
in the upper-limit column. Limits are in units of Hz.