Somewhere on an SD card I do have audio from the KRKO test. I'm in northeast Seattle I'll see if I can locate it and post it somewhere. I can tell you, though, that there was enough HD hash on 1360 to make listening unpleasant for the casual listener, and that doesn't normally happen with KRKO's huybrid HD mode. It's possible that if I were nearer to KRKO, the hash would have spread further. And based on what I heard, I'd have to assume that 30-kHz between local all-HD signals would be the minimum required, maybe 40. -- Rick
-----Original Message----- From: IRCA [mailto:irca-boun...@hard-core-dx.com] On Behalf Of Chuck Hutton Sent: Thursday, April 21, 2016 10:04 PM To: Mailing list for the International Radio Club of America <irca@hard-core-dx.com> Subject: Re: [IRCA] All-Digital AM Co-Channel Lab Test Results Unveiled Yes, desired to undesired is often-used nomenclature in the communications world. I don't see how you can correlate hybrid IBOC to all digital IBOC. What you hear with KRKO/KAST is different from what you will hear with all digital as the power spectrum and subcarrier levels are vastly different. Chuck ________________________________________ From: IRCA <irca-boun...@hard-core-dx.com> on behalf of Nick Hall-Patch <n...@ieee.org> Sent: Friday, April 22, 2016 4:51 AM To: Mailing list for the International Radio Club of America Subject: Re: [IRCA] All-Digital AM Co-Channel Lab Test Results Unveiled I presume "D/U" abbreviation in this piece refers to "desired / undesired"? I wonder if someone recorded audio from those tests, rather than just tossing dB's around? I have a recording of KAST-1370 from this morning that says otherwise, with KRKO-1380 IBOC sidebands about 25dB down and....welll, KAST is readable, but I wouldn't say it's lacking interference. The noise becomes really dominant if KAST is less than ~15dB above the IBOC level. best wishes, Nick At 21:05 21-04-16, you wrote: >http://www.radioworld.com/article/all-digital-am-co-channel-lab-test-re >sults-unveiled/278670 > >Sent from my iPad >_______________________________________________ >IRCA mailing list >IRCA@hard-core-dx.com >http://montreal.kotalampi.com/mailman/listinfo/irca > >Be sure to register now for the Joint DX Convention Kansas City, >September 9 to 11. Hotel space is filling up. >Registration info: >http://www.nrcdxas.org > > >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: irca@hard-core-dx.com _______________________________________________ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Be sure to register now for the Joint DX Convention Kansas City, September 9 to 11. Hotel space is filling up. Registration info: http://www.nrcdxas.org 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: irca@hard-core-dx.com _______________________________________________ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Be sure to register now for the Joint DX Convention Kansas City, September 9 to 11. Hotel space is filling up. Registration info: http://www.nrcdxas.org 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: irca@hard-core-dx.com _______________________________________________ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Be sure to register now for the Joint DX Convention Kansas City, September 9 to 11. Hotel space is filling up. Registration info: http://www.nrcdxas.org 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: irca@hard-core-dx.com
