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Analog coverage losses with IBOC

R

rbrucecarter

Guest
I thought I was the only one who was noticing this effect, but other listeners are also reporting massive analog coverage losses after stations add IBOC.

http://groups.yahoo.com/group/FMtuners/?yguid=116052011

I don't have a clue as to why this would happen - supposedly the analog signal is left alone and just the IBOC signal added. But the coverage losses are real and reported on more than just one station. Could it be losses in combiners? Or something more insidious that has been overlooked?

Given that the overwhelming majority of listeners will still be listening on analog radios for years to come, this is a serious issue that deserves a careful look. A lot of these metro areas like Dallas and Houston have the greatest growth in areas farthest from the antenna farms. So a loss in analog coverage is a serious matter.
 
> I thought I was the only one who was noticing this effect,
> but other listeners are also reporting massive analog
> coverage losses after stations add IBOC.
>
> http://groups.yahoo.com/group/FMtuners/?yguid=116052011
>
> I don't have a clue as to why this would happen - supposedly
> the analog signal is left alone and just the IBOC signal
> added. But the coverage losses are real and reported on
> more than just one station. Could it be losses in
> combiners? Or something more insidious that has been
> overlooked?
>
> Given that the overwhelming majority of listeners will still
> be listening on analog radios for years to come, this is a
> serious issue that deserves a careful look. A lot of these
> metro areas like Dallas and Houston have the greatest growth
> in areas farthest from the antenna farms. So a loss in
> analog coverage is a serious matter.
>

You seem to be cross posting this quite a bit. Lets see some real proff shall we???

It could be that the station is not taking the combiner losses into effect. I have seen where people have just kept the same analog transmit power at the same level after they introduced the combiner. But still this is not that much power, only about 10%.

I have not seen any loss of coverage in our HD stations nor have I seen any loss of coverage in other HD stations in other markets. And I have been looking for it as well.
 
> I thought I was the only one who was noticing this effect,
> but other listeners are also reporting massive analog
> coverage losses after stations add IBOC.
>
> http://groups.yahoo.com/group/FMtuners/?yguid=116052011
>
> I don't have a clue as to why this would happen - supposedly
> the analog signal is left alone and just the IBOC signal
> added. But the coverage losses are real and reported on
> more than just one station. Could it be losses in
> combiners? Or something more insidious that has been
> overlooked?
>
> Given that the overwhelming majority of listeners will still
> be listening on analog radios for years to come, this is a
> serious issue that deserves a careful look. A lot of these
> metro areas like Dallas and Houston have the greatest growth
> in areas farthest from the antenna farms. So a loss in
> analog coverage is a serious matter.
>

I have not noticed this with the stations broadcasting in HD here...and I live in a fringe area.
<P ID="edit"><FONT class="small">Edited by JM_pstar on 01/19/06 06:43 PM.</FONT></P>
 
> I have not noticed this with the stations broadcasting in HD
> here...and I live in a fringe area.
>

Same here. Only differences I noticed are nasty processing changes on some stations. Nothing too serious.<P ID="signature">______________

</P>
 
> > I have not noticed this with the stations broadcasting in
> HD
> > here...and I live in a fringe area.
> >
>
> Same here. Only differences I noticed are nasty processing
> changes on some stations. Nothing too serious.
>


See Bruce has noticed this with one stations therefore he thinks the HD system as a whole is flawed.

In other news.....

Jeremy, WWDV 96.9 (in your back yard) has been HD for over a week now. Here is aprime example of where there has been no coverage loss. I am on the fringe of their analog signal and they have not lost an inch of territory. Their HD signal does nto go as far as I would like it to, but I digress....
 
> > > I have not noticed this with the stations broadcasting
> in
> > HD
> > > here...and I live in a fringe area.
> > >
> >
> > Same here. Only differences I noticed are nasty processing
>
> > changes on some stations. Nothing too serious.
> >
>
>
> See Bruce has noticed this with one stations therefore he
> thinks the HD system as a whole is flawed.
>
> In other news.....
>
> Jeremy, WWDV 96.9 (in your back yard) has been HD for over a
> week now. Here is aprime example of where there has been no
> coverage loss. I am on the fringe of their analog signal
> and they have not lost an inch of territory. Their HD
> signal does nto go as far as I would like it to, but I
> digress....
>
I have not noticed a marked decrease in the range of the analog part of the many FM HD stations in the Cincinnati-Dayton area. I will concide that there is some loss in the fringe area that only a DXer would notice. For instance, there is a local in Cincinnati on 102.7. Before IBOC, I was able to receive the 1st ajacient on 102.9 in Springfield. After IBOC, that is now impossible because of the IBOC sidebands of 102.7. In short, as a DXer, I have suffered some loss of analog coverage, but not as a casual listener. <P ID="edit"><FONT class="small">Edited by Len14043 on 01/20/06 02:33 AM.</FONT></P>
 
> I thought I was the only one who was noticing this effect,
> but other listeners are also reporting massive analog
> coverage losses after stations add IBOC.
>
> http://groups.yahoo.com/group/FMtuners/?yguid=116052011
>
> I don't have a clue as to why this would happen - supposedly
> the analog signal is left alone and just the IBOC signal
> added. But the coverage losses are real and reported on
> more than just one station. Could it be losses in
> combiners? Or something more insidious that has been
> overlooked?
>
> Given that the overwhelming majority of listeners will still
> be listening on analog radios for years to come, this is a
> serious issue that deserves a careful look. A lot of these
> metro areas like Dallas and Houston have the greatest growth
> in areas farthest from the antenna farms. So a loss in
> analog coverage is a serious matter.
>

I have noticed no reduction in analog coverage either.

If something insidious is going on, it's due to how the stations were engineered.<P ID="signature">______________
</P>
 
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