Tektronix NetTek YBT250, User Manual, Page: 264 / 338

Appendix A: Specifications
A- 4
YBT250 Field Transmitter & Interference Tester User Manual
Table A- 2: Measurement characteristics (Cont.)
Measurement Description
RF Channel Power Measures the average RF power in a user-defined
channel. The default value of channel bandwidth is taken
from the selected standard. The acceptable values for
channel numbers are taken from the selected standard.
The user can input channel center frequency instead of
channel number.
Units Watts (W)
dBm
Resolution 3 significant digits for W
0.1 dB for dBm units
Accuracy
±
0.75 dB: --20 dBm to +30 dBm,
±
0.5 dB typical
±
1.25 dB: --80 dBm to --20 dBm,
±
1.0 dB typical
Reference Information:
Accuracy is guaranteed for input signals between --80
and +30 dBm total power (CW or peak envelope).
Accuracy specification is typical down to --120 dBm total
power.
RF Power
(GSM/EDGE) Measures the average RF power of the useful part of a
GSM or EDGE burst (GMSK or 8--PSK modulation), as
determined by the location of the burst Training
Sequence.
Units dBm
Resolution 0.01 dB for dBm units
Accuracy For GSM or EDGE (GMSK or 8--PSK modulation) burst
signals, the RF power shall be measured with an
accuracy as follows:
±
1.0 dB: --20 dBm to +30 dBm,
±
0.75 dB typical
±
1.5 dB: --80 dBm to --20 dBm,
±
1.25 dB typical