Tom,

What you are listening to is IBOC (in band on channel) digital radio in
hybrid mode.  More and more stations will be making the conversion.  The
theory goes that eventually the analog signal will be dropped and replaced
by digital.  This phase however I think will take a long time to implement.
There has been controversy about the digital implementation in the broadcast
industry especially for AM.  The FCC has allowed for day time IBOC only so
far.  A few stations have been given authority to test at night to see what
affect IBOC will have regarding skywave propagation.  It should be
interesting to say the least over the next few years.


Dave Marthouse N2AAM
[log in to unmask]


----- Original Message -----
From: "Tom Behler" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Sunday, March 27, 2005 10:34 AM
Subject: Re: Digital Signals on the Broadcast Band?


>     I have noticed this with a few stations here in Michigan as well.  At
> first, I wondered if the unusually wide signal had something to do with
the
> tuning string slipping in my GE Super II. and super III. radios, but don't
> think so, since it consistently appears at the same frequencies with the
> same stations.
>
> What a mess this will create if too many stations do this.
>
> It will be harder and harder to separate stations only 10 KC's apart.
>
> Is this progress????
>
> Best 73 from Tom Behler: KB8TYJ
> ----- Original Message -----
> From: "Will Smith" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Saturday, March 26, 2005 11:24 PM
> Subject: Re: Digital Signals on the Broadcast Band?
>
>
> > Hi Phil,
> >
> > You have discovered the newly introduced digital format that's being
> > tested and introduced in a number of markets.
> >
> > At least that's what I am  guessing.  ZPerhaps others could say more
about
> > this.
> >
> > Will, K4SAY
> > [log in to unmask]
> >
> > On Sat, 26 Mar 2005, Phil Scovell wrote:
> >
> > >     A few months ago, I switched my Sony 20 10 on and pressed the
> > > button for a little 500 watt radio station up in the mountains I
> > > try and listen to some times just to see how the band is doing.
> > > The station is always just above the noise level.  This particular
> >
>