PUBLIC NOTICE
Federal Communications Commission
445 12th St., S.W.
Washington, D.C. 20554
News Media Information 202 / 418-0500
Internet: http://www.fcc.gov
TTY: 1-888-835-5322
DA 13-1782
Release Date:  August 20, 2013
OFFICE OF ENGINEERING AND TECHNOLOGY
RELEASES UPDATED TVStudy SOFTWARE
ET Docket No. 13-26
GN Docket No. 12-268
On July 22, 2013, the FCC’s Incentive Auction Task Force released Version 1.2.6 of the 
TVStudy software for performing interference analyses using the methodology described in 
Bulletin No. 69 (OET-69).  As a result of user feedback and FCC staff testing, OET is today 
releasing an updated Version 1.2.7 of the TVStudy software.  Among other things, this update 
adds the capability to do pair-wise studies in countries other than the U.S., including cross-
border studies of interference between U.S. and Canadian or Mexican stations on proxy 
channels; provides improved sorting of stations’ records in the user interface; and corrects a 
potential issue that could cause spurious out-of-memory and SQL key errors.  A complete 
change list is included on the web page listed below.  The update includes new source code and 
executable files for both the Mac and Linux platforms, an updated instruction manual, change 
log, and upgrade guide.  None of the underlying data files are being changed and need not be 
replaced.  It is recommended that all TVStudy users apply this update so that results will match 
those obtained by the FCC.
All of these files are available on the FCC website at:
http://data.fcc.gov/download/incentive-auctions/OET-69/
OET invites interested parties to provide feedback, and to meet with OET staff regarding 
the installation and operation of the TVStudy software to help ensure consistent results. 
Additionally, a non-FCC e-mail user group (list-serve) is open to interested parties at 
afcce-cdbs@cavellmertz.com
For further information, contact Mark Colombo at mark.colombo@fcc.gov. 
- FCC -