[BC] IBUZ in the nulls (Was: Absorbtion by Foliage)

[Brian Urban]

When the DRM group met in Dallas last year, I asked if any tests had been
run on US style directional arrays.  Short answer, no.  Long answer, a
rather weird look and verbal no.  I'd sure like to see some tests run with
DRM on DA's to see how it behaves.  As an aside, the demos, especially the
real time reception from HCJB, were astounding.  I want one of those radios.


On 10/31/05 1:27 PM, "Robert Meuser" <Robertm at broadcast.net> wrote:

> A slightly Americanized version of DRM would add about as many bells and
> whistles possible in the available bandwidth.
> 
> R
> 
> 
> Stu Engelke wrote:
> 
>> There has been a lot of talk (by me included) that IBOC is not the
>> answer for AM. Especially if we can't do it at night. I'm wondering
>> what -is- the answer for AM? In my mind one of the bells and whistles
>> we need to be cool is a way to put data on the radio display.
>> 
>> Stu Engelke
>> 
>> 
>> WFIFeng at aol.com wrote:
>> 
>>> In a message dated 10/31/2005 09:52:26 AM Eastern Standard Time,
>>> Towers at mre.com writes:
>>> 
>>> 
>>>> I can't imagine the Ibiquity signals meeting the mask if the
>>>> reference AM carrier is used to center the mask.
>>> 
>>> 
>>> 
>>> Since IBUZ begins where the normal sidebands end, it will be even
>>> more pronounced by the fact that it's frequencies are that much more
>>> removed from carrier. (Let alone the fact that the reference -the
>>> carrier- is many db lower.) I don't see any way to make this thing
>>> work properly at all azimuths in a DA. It may be possible on paper,
>>> but not a chance in the real world.
>>> 
>>> 
>>>> 
>>>> My little grapevine has told me that AM IBOC is in deeper trouble at
>>>> the FCC than FM.
>>> 
>>> 
>>> 
>>> To those of us who love (and live by) AM, this is very good news!
>>> Seeing and hearing those two 1mv/m hash signals above and below WOR
>>> is proof enough for me that IBUZ is not the answer for AM.
>>> 
>>> Willie...
>>> 
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>> 
> 
> 
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-- 
Brian Urban
KUT Radio
University of Texas at Austin
Office 515-471-1085
Cell 512-940-4757