Tescom TC-3000C - Page 215

Appendix B. RF Test Cases of the TC-3000C
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and the longest supported length of a packet will be chosen for the test case.
Note. This parameter is ignored in Null packets test mode.
If the flag “Use Default” is selected then all of displayed values of parameters are ignored and
the listed above values will be assigned automatically:
Data length: 0 (longest supported length)
Additional test conditions
Hopping is on. In Transmitter test and Loop back test mode whitening is disabled, the
payload’s bit pattern is PRBS9.
Test Procedure
1. If the DUT is not connected then the tester creates connection via access procedures
(paging and inquiry if necessary).
2. If the Test Mode parameter is equal to “Transmitter test” or “Loop back” then the tester will
activate test mode (if the test mode is not activated yet) and will set all necessary
parameters of the test mode depending on the parameters Test Mode, Packet type and
Hopping mode. The LMP_test_control command is used to set the parameters in the DUT.
3. The tester checks whether the DUT transmits at maximum power. If not and the DUT
supports power control, then the tester will consecutively send LMP_incr_power_req
requests until the LMP_max_power response would be received from the DUT. The time
delay between two consequential LMP_incr_power_req requests depends on the
Pow.SetTime parameter (to modify the value use: Menu  Configuration  DUT 
More3/5  Pow.SetTime, default value is equal to 1 second).
4. The tester measures spectrum. The spectrum analyzer settings are:
Spectrum measurement method: FFT
Center frequency: 2450 MHz
Span: 100 MHz
Resolution Bandwidth: 10 kHz
Detector: Peak
Mode: Maxhold
Trigger: start time of the tester’s RX slot
Sweeptime: tester’s RX slot
Number of sweeps: 255
Tester integrates the spectrum data for each 100KHz bandwidth frequency domain and scans
within the span to find peak value of the calculated power. The peak power and related the
center frequency of 100KHz interval is recorded. The path losses value is added to the results
of the peak power. To set the path losses value use: MenuConfiguration DUTMore1/5
PathLoss.
Test Results
P_density is the peak value of power measured in dBm within 100KHz frequency bandwidth.
freq is the center frequency of the 100KHz frequency bandwidth where the peak value of the
power density was detected measured in MHz.
To reach a verdict the test result is compared with the limit parameter:
“Upper Limit of power density”
To change the parameter, use the Edit menu of the test case. If the flag “Use Default” is