This signal has been present here all along. I have pinned it down to the BASF facility in Newport Delaware. (
WPLT404 (BASF Colors and Effects USA LLC) FCC Callsign Details ) I have pretty much positively confirmed by watching the data and comparing to license details.
It has always made me curious how they could light up Newton Square with this strong signal present. In the back of my mind I attributed the delay in firing up Newton Square to them seeking another frequency to use.
The BASF signal is data only and quite active. Also, there is another intermittant signal which is slightly off frequency but quite strong belonging to Transcontinental gas pipeline co. which transmits data bursts regularly.
The 153.215 freq is anything but "quiet" here in the area of the NS site.