Appendix A: Specifications
A- 4
RFA300A Measurement Set 8VSB
Measurement Specifications
Table A- 2: Measurement specifications
Characteristic
Description
S/N (Signal to noise ratio)
S/N is the ratio of ideal signal power to all other signal contributions (such as noise and
distortion products). Data is taken only from the
I
channel (that is the real axis; in phase
with the pilot) at each symbol time.
S
N
=
20
log
N
j
=
1
Ꮛ
I
2
j
Ꮠ
Ꭹ
N
j
=
1
Ꮛ
δ
I
2
j
Ꮠ
Ꭹ
Where:
S/N = Signal to Noise Power Ratio in dB.
I
j
= Ideal received
I
-channel signal.
δ
I
j
= Error in the actual received
I
-channel signal.
S/N Accuracy
Reading is within
1 dB of the correct value when S/N
≥
25 dB with high smoothing.
n
Residual S/N
≥
40 dB .
The amount of S/N that is created within the RFA300A measurement set.
Summary of Contents for RFA300A
Page 1: ...User Manual RFA300A Measurement Set 8VSB 071 0697 01 www tektronix com...
Page 4: ......
Page 10: ...Table of Contents vi RFA300A Measurement Set 8VSB...
Page 102: ...Appendix C System Recovery C 12 RFA300A Measurement Set 8VSB...
Page 108: ...Glossary Glossary 4 RFA300A Measurement Set 8VSB...
