[BC] IBOC & Overmodulation

[Williams, Chris Albuquerque]

Well in theory overmodulation would run into the sidebands that IBOC use but I couldnt say for sure if it would interfere with the digital reception. Maybe that means a new experiment on the bench Monday morning.
 
And I was only concerned that WFIT was the one because I know they run a very tight ship there. I don't know anything about WLAZ but I am sure they will correct the issue. 

________________________________

From: broadcast-bounces at radiolists.net on behalf of wpio fm radio
Sent: Sun 12/11/2005 3:30 PM
To: Broadcast Radio Mailing List
Subject: Re: [BC] IBOC & Overmodulation



Williams, Chris (Albuquerque) wrote:
> WLAZ or WFIT? I think WFIT is transmitting in IBOC but I havent been home to verify that. If they are over modulating then call (Terry I think) and she will call her engineer who lives in Orlando and I'm sure they will fix it.
> I do not know anything about WLAZ. Let us know what happens.
>

I didn't know if it's ok to accuse a station by call of
overmodulating here on the forum.

It's WLAZ.  I cannot credit their loudness to high density
processing.  But I haven't seen it on a monitor yet so I
can't make much of it at this time.

WFIT is a perfect 1st adjacent neighbor, and they went
digital last summer.  I noticed on our Inovonics monitor
that they have great modulation control.

The original reason for the thread was to ask if it's true
that an IBOC digital FM station "has" to control it's main
channel modulation, so that it's digital carrier can work ok.

I'd like to know the answer to that.

Randy Henry

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