[BC] Blending issue

[Robert Orban]

At 03:43 PM 11/17/2005, you wrote:
>From: Barry Mishkind <barry at oldradio.com>
>Subject: [BC] Blending issue
>To: broadcast at radiolists.net
>Message-ID: <6.2.3.4.2.20051117112607.02882bc8 at pop.west.cox.net>
>Content-Type: text/plain; charset="us-ascii"; format=flowed
>
>There has been some recent discussion about a phase problem with the
>audio when IBOC receivers "blend" to analog.
>
>Apparently there are cases where the analog and the "decoded digital"
>are out of phase to each other, and the radio goes "quiet" for a
>moment.  Some have attributed this to a recent software upgrade on
>some IBOC exciters.
>
>Another person told me this week that this issue has been known for
>some time, and pointed to a specific processor.   I won't name it
>here, because I am not in position yet to verify that.

The issue has been known at Orban for a few weeks now. Our upcoming 
software release 1.2.4.63 for the 8500 will add a polarity switch to the 
8500's HD output so that any polarity reversals can be corrected, no matter 
where they are in the transmission system. We expect to post it at 
ftp.orban.com approximately two weeks from now.

Bob Orban