Tektronix NetTek YBT250, Руководство пользователя

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Appendix A: Specifications
YBT250 Field Transmitter & Interference Tester User Manual
A- 5
Table A- 2: Measurement characteristics (Cont.)
Measurement Description
Reference Information:
Burst timing is determined from the location of the burst
Training Sequence. If Burst timing cannot be found, the
power measurement will be done on an arbitrarily
selected segment of the signal equal to the useful part of
a slot.
RF Power
(1xEV--DO) Measures the RF power in the Pilot, MAC, and Data
intervals of a 1xEV-D0 timeslot.
Units dBm
Resolution 0.01 for dBm units
Accuracy For burst signals, the RF power shall be measured with
an accuracy as set forth in the following list:
±
1.0 dB: --20 dBm to +30 dBm,
±
0.75 dB typical
±
1.5 dB: --80 dBm to --20 dBm,
±
1.25 dB typical
RF Power
(TD-SCDMA) Measures the average RF power on individual timeslots
(excluding the guard period) as determined by the
location of the downlink pilot timeslot (DwPTS).
Units dBm
Resolution 0.01 for dBm units
Accuracy
±
1.0 dB: --20 dBm to +30 dBm,
±
0.75 dB typical
±
1.5 dB: --80 dBm to --20 dBm,
±
1.25 dB typical
Reference Information:
Burst timing is determined from the power envelope
profile of the DwPTS. If the DwPTS cannot be found, an
error message is displayed.
RF Channel Carrier Frequency Measures the frequency of the carrier in the user
selected channel. The user can enter either a channel
number or frequency.
Units MegaHertz (MHz)
Resolution 1 Hz