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Reference
Specifications (Pass/Fail Limits)
Chapter 5
115
Reference
Specifications (Pass/Fail Limits)
The Test Software uses the entries in the TESTS (Pass/Fail Limits) screen to determine
if a measurement meets the test requirements. If not, a “fail” indication is generated on
the printout (and in some cases you are able to make adjustments and re-test).
This section lists each pass/fail limit name and explains how it is used. For instructions
on changing the pass/fail limits and saving the changes to an SRAM card, see “Changing
Pass/Fail Limits” on page 98 and “Saving/Deleting a Procedure” on page 101.
1. Carrier Feedthrough
These pass/fail limits are used in measuring the performance of the I/Q modulator of
the CDMA transmitter.
Units are dBc.
2. Code Domain Floor
These pass/fail limits are used when performing code domain tests, and are used if
the Print Inactive Walsh Codes parameter is set to 1. The inactive Walsh
channel levels are measured and compared to this value (typically, the levels will fail
some upper limit).
Units are dB.
See Parameter "6. GN Print Inactive Walsh Codes [0=no 1=yes]" on page 111 .
3. Code Domain Phase
These pass fail limits are used when performing code domain tests. The Test Set
measures the phase of a Walsh channel compared to the pilot (Walsh 0) and compares
the result to these limits.
Units are mrad (milliradians).
4. Code Domain Timing
These pass/fail limits are used when performing code domain tests. The Test Set
measures the time offset of a Walsh channel compared to the pilot (Walsh 0) and
compares the result to these limits.
Units are ns (nanoseconds).
5. Frequency Error
These pass/fail limits are used in measuring the transmitter frequency error. The
Test Software determines the transmitter center frequency and compares it with the
ideal frequency, based on the channel number entry. The difference between the two
is the frequency error. The calculated frequency error is then compared to these
pass/fail limits to determine if the test passes or fails.
Units are Hz (hertz).