TIS-3's in JFK's communications railcar http://www.jfklibrary.org/Asset-Viewer/Archives/JFKWHP-ST-54-49-61.aspx I suspect TMC transmitters at right but can't find a good photo http://www.jfklibrary.org/Asset-Viewer/Archives/JFKWHP-ST-54-29-61.aspx http://www.jfklibrary.org/Asset-Viewer/Archives/JFKWHP-ST-54-27-61.aspx cheers, Nick K4NYW www.navy-radio.com