A-1
Appendix A
Measurement Systems
This appendix provides information regarding the measurement equipment used 
to perform this test/measurement program and block diagrams showing the 
interconnections of the various test set-ups.
Table A-1 provides a list of the equipment used, including the manufacturer and 
model number, a brief description and where appropriate, the most recent manufacturer 
calibration date. 
Figures A-1 through A-4 illustrate the measurement equipment and related 
interconnections used to perform the tests and measurements described in this report.  
Figure A-5 shows the spectral characteristics of the filtered DTV signal that was placed 
on the adjacent channel(s) in the adjacent-channel interference tests.
Table A-1.  List of Measurement Equipment
Equipment Quantity Manufacturer and Model Specifications Last Calibrated
Spectrum Analyzer 1 Agilent E4448 PSA 3 Hz-50 GHz 03/13/08
Spectrum Analyzer 1 Agilent E7405A EMC 9 kHz – 26.5 GHz 05/08/08
Modulation Analyzer 1 Agilent 8901A - 09/14/07
Audio Analyzer 1 Agilent 8903B - 09/14/07
Signal Generator 1 Agilent E4437B ESG 250 kHz-4 GHz 05/02/08
Signal Generator 1 Agilent 4438C ESG 250 kHz – 6 GHz 07/03/08
Broadcast Test System 2 Rhode and Schwarz SFU w/ ATSC Signal Generator -
WS-2100 RF Player 1 Wavetech, Inc. - -
Step Attenuator 4 Agilent  8494B 0 to 11 dBDC – 18 GHz
08/14/07
09/17/07
12/05/07
12/06/07
Step Attenuator 3 Agilent 8495B 0 to 70 dBDC – 18 GHz
08/21/07
09/17/07
12/04/07
Step Attenuator 1 Agilent 8496B 0 to 110 dBDC – 18 GHz 12/05/07
TV Channel 29 
Bandpass Filter 1
Micro Communications, 
Inc.;
Interdigital Series 42100
560-566 MHz;
7-pole;
0.8-1.0 dB insertion 
loss;
VSWR: 1.15
-
Signal Combiner 2 MiniCircuits ZFSC-2-1W 50 ? -
Log Periodic Antenna 1 A.R.A. LPB-2520/A 25 MHz – 2.0 GHz -
Impedance Matching 
Transformer 1 Trilithic ZMT-57 75-50 ? -
Low Noise Preamplifier 1 NardaNEL-0102N305-1MH 0.5 to 2 GHz -
Vertical Ground Plane 
Antenna 1 FCC Lab
0 dBi
512 to 698 MHz 11/13/07
A-2
Figure A-1.  “Clean” DTV Signal Measurement Equipment Configuration.
Figure A-2. “Recorded” DTV Signal Measurement Equipment Configuration.
WaveTech
RF
Player 50-75 ?Xformer
WSD
DUT
10-dB 
Steps
10-dB 
Steps
1-dB 
Steps
WSD
DUT
1-dB 
Steps
10-dB 
Steps
SFU
(DTV Signal 
Generator)
A-3
Figure A-3.  Adjacent Channel Interference Measurement Equipment Configuration.
Figure A-4. Spurious Emission and EIRP Measurement Equipment Configuration.
WaveTech
RF Player 75-50 ?Xformer
WSD -
DUT
10-dB 
Steps
10-dB 
Steps
1-dB 
Steps
DTV
Signal 
Generator 
(SFU)
BPF
Spectrum
Analyzer
SignalCombiner SignalSplitter
Spectrum
Analyzer
WSD
DUT
3m
mm
A-4
Figure A-5.  Filtered SFU Signal Compared to DTV Emissions Mask.