B-1
Appendix B
RF Capture Information
This appendix provides detailed information regarding the twelve DTV signal RF captures used in the sensitivity threshold 
measurements.  Section B.1 provides general information for each of the capture signals.  Section B.2 provides spectrum traces of 
each of the signals.  Section B.3 provides temporal plots of each signal over its 24.5-second playback period.
B.1  Summary of RF Capture Information
Table B-1 provides general information regarding the twelve captured waveforms utilized in this effort.
Table B-1.  RF Capture Information.1
Waveform Type ofCapture
Lower
Adjacent
Channel
Upper
Adjacent
Channel
Close-in 
Echo(es)
Multiple
Echo(es)
Deep
Notch(es)
Wide
Notches
Flat
Fading
Band 
Edge
Distortion
Pilot
Notch
WAS_06_34 Outdoor - 30’ None ATSC - - - - - - -
WAS_03_27 Outdoor - 30’ NTSC None - Y Y - - - Y
WAS_311-35 Outdoor - 30’ ATSC ATSC - Y - - Y - -
WAS-311-36 Outdoor - 30’ ATSC None - Y Y Y - - -
WAS_311_48 Outdoor - 30’ None None - Y Y Y - - -
WAS_32_48 In-home None None - Y Y Y - - -
WAS_47_48 In-home None None - Y - - Y - -
WAS_49_34 In-home None ATSC - Y Y - Y Y -
WAS_49_39 In-home None None - Y Y - - - -
WAS_51_35 Outdoor - 30’ ATSC ATSC - - - - Y - -
WAS_68_36 Outdoor - 30’ ATSC None - - - - Y - -
WAS_86_48 Outdoor - 30’ None None - - - - - - -
  
1 Advanced Television Systems Committee, ATSC Recommended Practice: Receiver Performance Guidelines (with Corrigendum No. 1), Doc A/74, Annex A, 
July, 2007.
B-2
B.2 Frequency Domain Representations.
The following spectrum analyzer traces demonstrate the frequency domain characteristics 
of each of the RF capture waveforms utilized in this effort.
-100
-80
-60
-40
-20
606 607 608 609 610 611 612 613 614 615 616
Average Channel Power = -24.3 dBm
Frequency (MHz)
Re
ce
ive
dP
ow
er
(d
Bm
/10
-kH
z)
WAS_03_27
Figure B-1. WAS_03_27 RF Capture
-120
-100
-80
-60
-40
-20
606 607 608 609 610 611 612 613 614 615 616
Average Channel Power = -20.7 dBm
Frequency (MHz)
Re
ce
ive
dP
ow
er
(d
Bm
/10
-kH
z)
WAS_06_34
Figure B-2.  WAS_06_34 RF Capture
B-3
-120
-100
-80
-60
-40
-20
606 607 608 609 610 611 612 613 614 615 616
Average Channel Power = -21.3 dBm
Frequency (MHz)
Re
ce
ive
dP
ow
er
(d
Bm
/10
-kH
z)
WAS_32_48
Figure B-3.  WAS_32_48 RF Capture
-100
-80
-60
-40
-20
606 607 608 609 610 611 612 613 614 615 616
Average Channel Power = -19.3 dBm
Frequency (MHz)
Re
ce
ive
dP
ow
er
(d
Bm
/10
-kH
z)
WAS_47_48
Figure B-4. WAS_47_48 RF Capture
B-4
-120
-100
-80
-60
-40
-20
606 607 608 609 610 611 612 613 614 615 616
Average Channel Power = -21.5 dBm
Frequency (MHz)
Re
ce
ive
dP
ow
er
(d
Bm
/10
-kH
z)
WAS_49_34
Figure B-5.  WAS_49_34 RF Capture
-120
-100
-80
-60
-40
-20
606 607 608 609 610 611 612 613 614 615 616
Average Channel Power = -23.5 dBm
Frequency (MHz)
Re
ce
ive
dP
ow
er
(d
Bm
/10
-kH
z)
WAS_49_39
Figure B-6.  WAS_49_39 RF Capture
B-5
-120
-100
-80
-60
-40
-20
606 607 608 609 610 611 612 613 614 615 616
Average Channel Power = -29.8 dBm
Frequency (MHz)
Re
ce
ive
dP
ow
er
(d
Bm
/10
-kH
z)
WAS_51_35
Figure B-7.  WAS_51_35 RF Capture
-120
-100
-80
-60
-40
-20
606 607 608 609 610 611 612 613 614 615 616
Average Channel Power = -23.0 dBm
Frequency (MHz)
Re
ce
ive
dP
ow
er
(d
Bm
/10
-kH
z)
WAS_68_36
Figure B-8.  WAS_68_36 RF Capture
B-6
-120
-100
-80
-60
-40
-20
606 607 608 609 610 611 612 613 614 615 616
Average Channel Power = -22.1 dBm
Frequency (MHz)
Re
ce
ive
dP
ow
er
(d
Bm
/10
-kH
z)
WAS_86_48
Figure B-9. WAS_86_48
-100
-80
-60
-40
-20
606 607 608 609 610 611 612 613 614 615 616
Average Channel Power = -21.0 dBm
Frequency (MHz)
Re
ce
ive
dP
ow
er
(d
Bm
/10
-kH
z)
WAS_311_35
Figure B-10.  WAS_31_35
B-7
-100
-80
-60
-40
-20
606 607 608 609 610 611 612 613 614 615 616
Average Channel Power = -21.0 dBm
Frequency (MHz)
Re
ce
ive
dP
ow
er
(d
Bm
/10
-kH
z)
WAS_311_36
Figure B-11. WAS_311_36
-100
-80
-60
-40
-20
606 607 608 609 610 611 612 613 614 615 616
Average Channel Power = -20.2 dBm
Frequency (MHz)
Re
ce
ive
dP
ow
er
(d
Bm
/10
-kH
z)
WAS_311_48
Figure B-12. WAS_311_48 RF Capture
B-8
B.3. Temporal Representations.
The following temporal plots, acquired using a vector signal analyzer (VSA), illustrate 
the time-domain characteristics associated with each of the RF capture waveforms 
utilized in this measurement effort.
Figure B-13.  WAS_3_27 Temporal Representation
Figure B-14.  WAS_06_34 Temporal Representation
B-9
Figure B-15.  WAS_32_48 Temporal Representation
Figure 16. WAS_32_48 Temporal Representation
B-10
Figure B-17.  WAS_49_34 Temporal Representation
Figure B-18.  WAS_49_39 Temporal Representation
B-11
Figure B-19.  WAS_51_35 Temporal Representation
Figure B-20. WAS_68_36  Temporal Representation
B-12
Figure B-21. WAS_86_48 Temporal Representation
Figure B-22. WAS_311_35 Temporal Representation
B-13
Figure B-23.  WAS_311_36 Temporal Representation
Figure B-24. WAS_311_48 Temporal Representation