Specifications

Chapter 5 127
Test Specifications
28 TX RACH Frequency Error
28 TX RACH Frequency Error
Description This specification sets the limits for the mobile station’s frequency error
while transmitting a RACH (Random Access Channel) burst.
If a selected limit is exceeded, an “F” (for fail) will be displayed next to
the TX RACH freq error measurement result.
Default values The GSM900 default value for the lower limit is
−90 Hz The GSM900
default value for the upper limit is 90 Hz The DCS1800 default value
for the lower limit is
−180 Hz The DCS1800 default value for the upper
limit is 180 Hz The PCS1900 default value for the lower limit is
−190
Hz The PCS1900 default value for the upper limit is 190 Hz.
Example If you want your test procedure to report a failure when the frequency
error for a RACH exceeds
±60 Hz or &120 Hz, you would enter −60 or
−120 in the lower-limit column and 60 or 120 in the upper-limit column.
Limits are entered in units of Hz.