> Noticed at 12:04 AM PDT that KKAD 1550 is on with a open carrier > and the strength is S-9+55 db. 1540 & 1550 also have a carrier with > a level of S-9+40 db. > > Could this Pamplin media station be setting up a IBOC system?
I haven't seen any IBOC system with a single +/- 10KHz carrier. It's always the collection of digital carriers that causes the loud hiss. And, from what I've seen with tests to check the compatibility of the antenna system, it's usually done with sweep tone. What you're describing sounds more like a normal AM station testing with a 10KHz audio tone. Craig Healy Providence, RI _______________________________________________ IRCA mailing list [email protected] http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: [email protected]
