Doug Lung's

RF Column Links: October 1998
From TV Technology Magazine

A MODAP for DTV

8vsb Modulator Correction Requirements
COMARK 8VSB Modulator With DAP

Tektronix RFA300 8VSB Test Set Photos from COMARK tests

Signal/Noise and Error Vector Magnitude
MO-DAP output
Frequency Response and Group Delay
MO-DAP output
Amplitude Error and Phase Error
MO-DAP output
Out of Channel Power to Average Power
MO-DAP output (there appears to be a spur on the upper channel in this shot)
Peak to Average Power - Cumulative Distribution
MO-DAP output
Integrated Phase Noise
MO-DAP output

The article references additional images which I have not had a chance to scan and include here. Any new additions will be mentioned on the www.transmitter.com home page

This is a list of Web resources listed at the end of this month's RF Technology column in TV Technogy magazine. More details on the items I write about are often available on the Internet. TV Technology is published twice monthly and my column usually appears in the first issue each month. Free subscriptions are available to professional broadcasting and audio-visual equipment users. Visit TV Technology at www.tvtechnology.com, by telephone +1 703-998-7600 or by fax +1 703-998-2966. Be sure to tell them you read about it on Doug Lung's RF Page @ transmitter.com.


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Last modified January 27, 1999 by Doug Lung dlung@transmitter.com
Copyright 1998, 1999 H. Douglas Lung