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Hate using the SCAN button!

TimmyWA

TimmyWA

Folks,

This may have been addressed previously... When I drive in to the Bay Area from Sacramento, I will frequently tune around the dial with the SCAN button. Just in the past few months (or longer), I notice that the scan hits dead stations. Usually on the immediately surrounding frequencies of the actual station. For example: 94.7 and 95.1 96.3 and 96.7. My theory is that this has to do with IBOC. However, I am not sure. Any thoughts?

Thanks!

-Timmy<P ID="signature">______________
Perfection is overrated...</P>
 
> Folks,
>
> This may have been addressed previously... When I drive in
> to the Bay Area from Sacramento, I will frequently tune
> around the dial with the SCAN button. Just in the past few
> months (or longer), I notice that the scan hits dead
> stations. Usually on the immediately surrounding frequencies
> of the actual station. For example: 94.7 and 95.1 96.3 and
> 96.7. My theory is that this has to do with IBOC. However, I
> am not sure. Any thoughts?
>
> Thanks!
>
> -Timmy
>


It's not IBOC. It sounds like poor filtering on your radio that hits side band splash. Did you install this system in your car. When you by an inexpensive stereo, manufactures will cut corners especially when it comes to FM receiviers.
Good ones will be given road test and have more peaking and tweaking, and filtering along with better selectivity. Car manufacturers are very good depending on what car company when it comes to selectivity and stability.
Audio makers for cars are not as good unless you start spending $300 or more.
 
> It's not IBOC. It sounds like poor filtering on your radio
> that hits side band splash. Did you install this system in
> your car. When you by an inexpensive stereo, manufactures
> will cut corners especially when it comes to FM receiviers.
>
> Good ones will be given road test and have more peaking and
> tweaking, and filtering along with better selectivity. Car
> manufacturers are very good depending on what car company
> when it comes to selectivity and stability.
> Audio makers for cars are not as good unless you start
> spending $300 or more.
>
This is great info. Thanks. This is happening on my factory installed Dodge Grand Caravan 2005. cd/tape/am/fm/rds setup The fact that an additional 6-disc cd/dvd player (still factory installed) should make no difference.

Any more info? And it doesn't happen on all major signals in the bay/south bay.

-Timmy<P ID="signature">______________
Perfection is overrated...</P>
 
> > It's not IBOC. It sounds like poor filtering on your radio
>
> > that hits side band splash. Did you install this system in
>
> > your car. When you by an inexpensive stereo, manufactures
> > will cut corners especially when it comes to FM
> receiviers.
> >
> > Good ones will be given road test and have more peaking
> and
> > tweaking, and filtering along with better selectivity. Car
>
> > manufacturers are very good depending on what car company
> > when it comes to selectivity and stability.
> > Audio makers for cars are not as good unless you start
> > spending $300 or more.
> >
> This is great info. Thanks. This is happening on my factory
> installed Dodge Grand Caravan 2005. cd/tape/am/fm/rds setup
> The fact that an additional 6-disc cd/dvd player (still
> factory installed) should make no difference.
>
> Any more info? And it doesn't happen on all major signals in
> the bay/south bay.
>
> -Timmy
>
It also depends on how close.
 
It sounds like it could be a mix of the two. The IBOC interference first reared its ugly head on 96.5, then 102.1, 95.7, 105.3 and so on, wiping out the adjacents. I could receive the Sacramento adjacents while driving around San Francisco but once those digital sidebands occupying the adjacent frequency popped up on the SF stations, that wiped out some DX possibilities for me. As for your receiver's inability to put up with strong nearby signals, that's another issue as well which everyone has to a degree.

One of the many negatives of IBOC.

Joe



> > > It's not IBOC. It sounds like poor filtering on your
> radio
> >
> > > that hits side band splash. Did you install this system
> in
> >
> > > your car. When you by an inexpensive stereo,
> manufactures
> > > will cut corners especially when it comes to FM
> > receiviers.
> > >
> > > Good ones will be given road test and have more peaking
> > and
> > > tweaking, and filtering along with better selectivity.
> Car
> >
> > > manufacturers are very good depending on what car
> company
> > > when it comes to selectivity and stability.
> > > Audio makers for cars are not as good unless you start
> > > spending $300 or more.
> > >
> > This is great info. Thanks. This is happening on my
> factory
> > installed Dodge Grand Caravan 2005. cd/tape/am/fm/rds
> setup
> > The fact that an additional 6-disc cd/dvd player (still
> > factory installed) should make no difference.
> >
> > Any more info? And it doesn't happen on all major signals
> in
> > the bay/south bay.
> >
> > -Timmy
> >
> It also depends on how close.
>
 
> It sounds like it could be a mix of the two. The IBOC
> interference first reared its ugly head on 96.5, then 102.1,
> 95.7, 105.3 and so on, wiping out the adjacents. I could
> receive the Sacramento adjacents while driving around San
> Francisco but once those digital sidebands occupying the
> adjacent frequency popped up on the SF stations, that wiped
> out some DX possibilities for me. As for your receiver's
> inability to put up with strong nearby signals, that's
> another issue as well which everyone has to a degree.
>
> One of the many negatives of IBOC.
>
> Joe
>
>
>
> > > > It's not IBOC. It sounds like poor filtering on your
> > radio
> > >
> > > > that hits side band splash. Did you install this
> system
> > in
> > >
> > > > your car. When you by an inexpensive stereo,
> > manufactures
> > > > will cut corners especially when it comes to FM
> > > receiviers.
> > > >
> > > > Good ones will be given road test and have more
> peaking
> > > and
> > > > tweaking, and filtering along with better selectivity.
>
> > Car
> > >
> > > > manufacturers are very good depending on what car
> > company
> > > > when it comes to selectivity and stability.
> > > > Audio makers for cars are not as good unless you start
>
> > > > spending $300 or more.
> > > >
> > > This is great info. Thanks. This is happening on my
> > factory
> > > installed Dodge Grand Caravan 2005. cd/tape/am/fm/rds
> > setup
> > > The fact that an additional 6-disc cd/dvd player (still
> > > factory installed) should make no difference.
> > >
> > > Any more info? And it doesn't happen on all major
> signals
> > in
> > > the bay/south bay.
> > >
> > > -Timmy
> > >
> > It also depends on how close.
> >
>


I'm in the Sacramento area and I'm not aware of the following stations that are IBOC. I did'nt know they were. it could be that. I know on AM it will clear as much as 5kHZ. Then BPL is passed...good bye AM.
 
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