[IRCA] IBOC/analog reception comparisons.

["W. Curt Deegan" <WWWR@xxxxxxxxxxxxx>]

A few days ago there was a discussion of IBOC vs analog signal strengths 
and reception range.  At the time I mentioned I had seen from spectrum 
scans I ran, a significant difference in IBOC sideband strength with 
antennas of varying gain, as compared to the analog component of the 
hybrid broadcast signal.

Not to restart that discussion, I just want to say that since then, I 
have produced some composite spectrum scans of stations operating in 
IBOC mode as received using different gain antennas.  I have placed 
these on a web page which shows the phenomenon to which I was 
referring.  This is strictly a graphic representation, not a technical 
analysis, intended simply to illustrate my previous remarks.

For anyone interested, you can see this comparison page here:
    http://ScooterHound.com/WWWR/radio/sefliboc2.html
The original Southeast Florida AM IBOC Status page has been enhanced 
somewhat and is here:
    http://ScooterHound.com/WWWR/radio/sefliboc.html

Comments and/or questions are welcome.

Curt

-- 

W. Curt Deegan
Boca Raton, (Southeast) Florida
[Ten-Tec RX-320D; LF Engineering H-800 & M-601; GAP DSP]


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