Tektronix RFA300A, User Manual

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Appendix A: Specifications
A- 8
RFA300A Measurement Set 8VSB
Table A- 2: Measurement specifications (Cont.)
Characteristic Description
Phase Noise
Phase Noise Marker Accuracy 5 dB.
n
Residual Phase Noise
≤
--105 dBc/Hz at 20 kHz carrier offset.
This is the single sideband noise exhibited by the RFA300A local oscillator.
Residual Phase Jitter
≤
5 milliradians RMS, integrated over the range from 2 kHz to 300 kHz.
Peak to Average Ratio
Marker Accuracy 1 dB.
--90 dB
DTV
--80 dB
DTV
--70 dB
DTV
--60 dB
DTV
--50 dB
DTV
--40 dB
DTV
--30 dB
DTV
--20 dB
DTV
--10 dB
DTV
0 dB
DTV
Lower adjacent channel
(N-1)
dB
DTV
is dB as defined
by the FCC’s
measurement method
The reference amplitude is the
total transmitter output power,
including the pilot signal
Out of channel
measurements are
referenced to a 500 kHz
noise bandwidth
RFA300A measurement
capability is limited to less
than the FCC’s specification
Next lower adjacent
channel (N-2)
In--channel (N)
Upper adjacent
channel (N+1)
Next Upper adjacent
channel (N+2)
The FCC’s specification continues
down to --110 dB
DTV
below total
carrier output
Figure A- 2: 8VSB transmitter emissions mask