[BC] Rich Wood, you weren't there for those discussions

[Broadcast List USER]

Yet, even though -22 dBc was considered the limit, and we bumped it up  
to -20 dBc, we are going to totally ignore all the hard work that went  
into determining the maximum level, and set the new level 12 dB higher!

Yea, right, that makes total sense, or should it be cents, or dollars.

Your post was very well written though.  I really enjoyed it.

--chip

On Feb 3, 2010, at 4:56 PM, broadcast-request at radiolists.net wrote:

> Message: 24
> From: Barry McLarnon <bdm at bdmcomm.ca>
> [...]
> The question of the optimum digital power level for hybrid IBOC was
> investigated quite extensively back in the 90's, and it was  
> determined that
> setting it higher than about -20 dBc would be overly detrimental to  
> analog
> reception, both for the host station and its adjacent channel  
> neighbors.  In
> the system description that iBiquity provided to the ITU in 2001,  
> the power
> level was in fact pegged at -22 dBc, but they edged that up to -20  
> dBc for
> the tests and evaluation whose results were submitted to the FCC.
> [...]
> Barry McLarnon VE3JF  Ottawa, ON