Specifications

Chapter 5 133
Test Specifications
36 TX Worst Case Frequency Error
36 TX Worst Case Frequency Error
Description This specification sets the upper limit for the mobile station
transmitter’s worst case frequency error, expressed in Hz.
NOTE ”Worst case” phase and frequency error measurements only apply when
parameter TX phase/freq measurement averages is set to
something other than its default value of 1.
If the limit is exceeded, an “F” (for fail) is displayed next to the TX wc
frequency error measurement.
Default value • The GSM900 default value for the lower limit is
−90 Hz and for the
upper limit is 90 Hz.
• The DCS1800 default value for the lower limit is −180 Hz and for the
upper limit is 180 Hz.
• The PCS1900 default value for the lower limit is −190 Hz and for the
upper limit is 190 Hz.
Example If you want your test procedure to report a failure if the transmitter
worst case frequency error exceeds 60 Hz, you would enter
−60 in the
lower-limit column and 60 in the upper-limit column.