ATSC maybe EW signal from the pilot carrier

[VK3ZAZ]

Advanced Television System Committee (ATSC) uses eight-level vestigial sideband (8VSB) for terrestrial broadcasting.
This standard has been adopted by several countries, United States, Canada, Mexico, South Korea, Dominican Republic and Honduras.

CH 2 DVC 55.25 PILOT CARRIER 54.31 DSC 59.75

CH 3 DVC 61.25 PILOT 60.31 DSC 65.75

CH 4 DVC 67.25 PILOT 66.31 DSC 71.75


No other details wrt power levels yet

54.310 MHZ Might be useless info or useful for tep to Asia and USA

Countries and territories using ATSC

North America
Bahamas plans for transition to ATSC standards were officially announced on December 14, 2011; national public broadcaster
ZNS-TV announced it would be upgrading to ATSC digital television with mobile DTV capabilities, in line with its neighbors,
the United States and Puerto Rico.
Canada switched to ATSC on August 31, 2011 in provincial/territorial capitals and locations with 300,000 or more people;
expected to continue broadcasting analog over-the-air television signals in 22 markets until August 31, 2012.
Dominican Republic plans announced August 10, 2010; transition to be complete by September 24, 2015.
El Salvador plans announced April 22, 2009.

Mexico plans announced July 2, 2004, started conversion in 2013
transition expected to be complete by December 31, 2015.

United States switched to ATSC on June 12, 2009,

excluding LPTV stations;
Puerto Rico
U.S. Virgin Islands
transition to be complete by September 1, 2015

Asia/Pacific
South Korea completed terrestrial transition on December 31, 2012.
Allows analog broadcasts to continue on its northern border in order to be received in North Korea.

United States Minor Outlying Islands switched to ATSC on June 12, 2009,
excluding LPTV stations; .
American Samoa
Guam
Northern Mariana Islands
transition to be complete by September 1, 2015

South America
Suriname is currently undergoing transition to upgrade to ATSC digital television, transition to be complete by July 2015.

ATSC 3.0 is not backward compatible with ATSC 2.0.

[VK4WDM]

Hi Steve

Thank you for the info. I have programmed 54.310MHZ into my scanning program.

73 and Happy New Year

Wayne VK4WDM

[VK3AUU]

You also need to be aware that most (all) 50 MHz yagis have more gain off the back than out the front when used at this frequency.

David