[BC] Real cases of IBOC interference wanted for research purposes

Kent Winrich kwinrich
Wed Jul 19 13:41:19 CDT 2006


That would be real interesting if KXNT interferes with you, as KXNT has a
deep null your direction. and at about 370 miles that is a hike!

On 7/19/06, David L. Hershberger <dave at w9gr.com> wrote:
>
> Hi Doug,
>
> I have two AM cases to report. First, KXNT 840 in Las Vegas apparently
> sometimes "forgets" to turn off their IBOC at night. When this happens it
> is
> usually on weekends. This trashes our adjacent local 5 kW AM station at
> night (KCNO 830). Here are examples recorded two years ago:
>
> http://www.w9gr.com/knco.mp3  (normal reception, no IBOC)
>
> http://www.w9gr.com/kncoiboc.mp3  (IBOC on from Las Vegas)
>
> Details of antenna patterns, my receive location, etc. are in my comments
> on
> the FCC web page.
>
> The second case is daytime interference. KCBC 770  in Riverbank (Modesto)
> trashes KKOH 780 in Reno. My location is Nevada City, CA and I think I am
> well within KKOH's protected contour. I don't have a recording of KKOH but
> I
> could easily make one.
>
> Dave Hershberger
>
> ----- Original Message -----
> From: "Doug Vernier" <dvernier at V-soft.com>
> To: <broadcast at radiolists.net>
> Sent: Wednesday, July 19, 2006 8:30 AM
> Subject: [BC] Real cases of IBOC interference wanted for research purposes
>
>
> Colleagues,
>
> We are looking for real cases of reported IBOC interference to analyze for
> research purposes. Of particular interest is AM or FM IBOC interference to
> analog stations within the normally protected contour of the affected
> station.  We're also interested in interference outside the protected
> contour however; unfortunately, there's not much that can be done about
> it.
>
> You may respond via the Listserv or to my personal email
> dvernier at v-soft.com
>
> Thank you.
>
> Doug Vernier, Telecommunications Consultants
> V-Soft Communications
> Broadcast Propagation Software and Engineering Consulting
> WWW.V-Soft.com - 319 266-8402
> K0DV
>
>
>
>
>
>
> _______________________________________________
>
> Do you have a BDR? http://www.oldradio.com/bdr.htm
>


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