[BC] IBOC power increase

[Warren Shulz]

As I recall, the decision to operate IBOC at the -20 dBc carrier power
was determined by iBquity to cause the least interference to analog
reception.  The long term goal was to move to -10 dBc and perhaps
eventually shutdown the analog component after receives have migrated to
the IBOC platform.  

1% receiver base does not seem the appropriate time to elevate digital
IBOC to the -10dbc power level. Why would you want to degrade analog
reception for a 1% IBOC receiver base?  The market place will decide if
the technology has merit.  So far, it appears the market place has not
voted to accept the IBOC technology.

Perhaps a better way to 'motivate IBOC platform is roll off FM analog
response to 5 kHz so the HD experience proves to be more fulfilling as
the receiver switched to IBOC mode.  This is the method devised for AM
HD reception.  The IBOC spec is to hold the analog performance audio
bandwidth to 2.5 kHz so when the IBOC decodes locks into the IBOC signal
the bandwidth improvement is dramatic.   Hey what's wrong with a little
sales hype and deception.

It's a folly to think the public will file complaints of reception to
the FCC.  They will just shut the device off and move on to their I-Pod
or what ever and never return.  
 
Warren Shulz
WLS Cgo

-----Original Message-----

 From: Rich Wood

------ At 06:07 PM 2/1/2010, Bill Weeks wrote: -------

>BE claimed on the phone to me today that they didn't know how to do it
>yet, on a current model exciter/transmitter.
>
>Are Nautel or Harris smarter?

I'm not sure that's fair to BE. No one expected IBUZ to fail so 
miserably at 1% and designed the units for the power they figured 
would be cast in stone. As I recall, the early experiments with 
higher power damaged the analog, so no one would be foolish enough to 
destroy their cash cow.

Rich