Re: [IRCA] IBOC Redux

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

Some time ago I prepared an MP3 file showing the affect switching between 
upper and lower sideband has on an IBOC signal and on the adjacent 
channels.  This adds a somewhat different demonstration to the excellent 
examples Pete provided of IBOC sideband interference.

Using the technique of switching between U/LSB makes it even more certain 
you are hearing an IBOC digital signal versus some unintentional noise, if 
there is any doubt.

The MP3 file is near the bottom of this page along with explanation:
http://ScooterHound.com/WWWR/radio/sefliboc2.html

Graphical depictions of actual received IBOC signals can be seen on the 
home page of this web site, the link is in my signature.

Curt
-------
W. Curt Deegan
Boca Raton, (southeast) Florida
http://ScooterHound.com/WWWR/radio/sefliboc.html


At 01:29 PM 7/24/2006, you wrote:
>For those not familiar with the white noise on the frequencies adjacent to
>a carrier running IBOC, check out the below web page for some illustrative
>examples:
>
>http://www.21centimeter.com/IBOC.html
>
>Recordings #5 and #9 demonstrate that IBOC hiss can be heard quite far even
>in the daytime. The latter recording was obtained from a QTH (Wilmington,
>DE) located a little over 100 miles from the WOR transmitter.
>
>Regards,
>
>-Pete Jernakoff-
>K3KMS
>www.21centimeter.com


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