Re: [IRCA] MORE BAD NEWS FOR FM DXERS

[Mike Hawkins <michael.d.hawkins@xxxxxxxxx>]

Kevin,

The biggest problem with FM IBOC isn't what you have noted...its the damage
it causes to stations on adjacent frequencies.  Make a note of which locals
have IBOC, then go away from them by 40 miles or so.  You will probably find
a number of stations that come in crystal clear with very strong signals.
Then drive back towards your home while checking periodically on those same
stations.  You will probably find that a majority of them disappear under an
RF buzzsaw.  It obliterates the adjacents, as if the purpose isn't to
improve a signal so much as it is to force you to listen to your locals.

Mike Hawkins
Bay Area

On Mon, Feb 1, 2010 at 10:59 PM, Kevin S <satya@xxxxxxxxxxxx> wrote:

> I am in the middle of Seattle, but until today haven't had a chance to
> really hear what the FM IBOC hash sounds like.  By chance, I picked up a
> Yamaha T-80 tuner today at a thrift shop for $10, and it works perfectly!
> The AM section has dual bandwidths, but neither are very narrow, and the
> images on the low end of the band are pretty bad, so no TPs on this one.
>
> However, the FM side is fantastically sensitive and has two good
> bandwidths.  In listening to local IBOCers, doing an A/B with the
> wide/narrow filtering, the hash is quite noticeable, especially on the
> local classical station that isn't blasting all of the time.  Fortunately,
> the narrow bandwidth pretty much gets rid of it, and the audio isn't
> impacted much at all.
>
> I can't imagine what those who listen to the classical station, and don't
> have a selectable bandwidth tuner or an HD tuner, must think.
>
> Kevin S
> Bainbridge Island, WA
>
>
> > Dave,
> >
> > I guess I live too far from the IBOC noisemakes here. Portland is 75 air
> > miles over the Coast range and Seattle is 150.  If I remember, the next
> > time I go to Portland, I'll check out the FM dial. I just never listen
> > to FM.
> >
> > Patrick
> >
> > Patrick Martin
> > KGED QSL Manager
> >
>
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