WBZ IBOC was legally on until 5 PM CST the last couple of years and hammered KDKA here in IL from about 3:30 PM(earlier in Dec) CST to 5 PM (IBOC shut off) during Nov to early Feb.
73 KAZ home from travelling and sending you the DXE phaser tomorrow ----- Original Message ----- From: "Craig Healy" <[EMAIL PROTECTED]> To: "Mailing list for the International Radio Club of America" <[email protected]> Sent: Friday, October 12, 2007 12:55 AM Subject: Re: [IRCA] Update on WGN IBOC interference >I would like to add something to my previous post.. > > In many cases, skywave interference near sunrise and sunset has been > regulated. This is called Critical Hours power. Often it'a rather small > fraction of the mid-day power. 1800w down to 1kw, or 10kw down to 2.5kw > as > a couple of examples that come to mind. IBOC carriers should also have to > follow this guideline. When an allocation study requires it, full IBOC > power should not be allowed until two hours after sunrise, and lowered two > hours before sunset. The lower of the two powers, depending on the > allocation, should be the limit for both sidebands. > > All this is just more evidence as to why AM IBOC should never have been > permitted, and why it will cause irreparable harm if allowed to continue. > Were I KDKA or WYSL, I would not be looking forward to December when the > WBZ > IBOC will come barreling in during their drive times. It will certainly > have an effect on their listenership and their bottom line. Sad.. > > 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]
