Re: [IRCA] SE FL IBOC Status

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

Since this is still on the thread I started, let me add a comment 
regarding the spectrum scans I originally referenced as relates to the 
digital sideband strength.

When I ran spectrum scans on the local IBOC AMers, I was at first 
confused how at times the digital sidebands were equal to or higher in 
strength than the analog signal and at other times they were much lower 
in strength.  IBOC was on in both instances, the hissing was just less 
intense at times.

What I eventually realized was the differences resulted from me 
arbitrarily switching from time to time, between two different active 
verticals, one with slightly higher gain figures.  While there was no 
particular difference in the strength of the analog signals, one antenna 
to the other, the digital sidebands dropped dramatically.

It would seem the digital sidebands drop off much more rapidly, even for 
stations 10 to 15 miles distant, than does the analog signal.  That 
rapid loss of signal would not seem to support the notion the digital 
signal is going to get out better than the analog.

Unfortunately I have no HD-ready radio with which to offer reception 
details, but looking at the signals, it does seem to show a substantial 
advantage for analog.

Curt

W. Curt Deegan
Boca Raton, (Southeast) Florida
[Ten-Tec RX-320D receiver,
 LF Engineering H-800 & M-601 active verticals]
http://ScooterHound.com/WWWR/radio/sefliboc.html


David Gleason wrote:

>Sounds like a bad radio. Our experience at KTNQ has been that the usable
>digital signal is greater than the usable analog signal. 
>
>-----Original Message-----
>From: irca-bounces@xxxxxxxxxxxxxxxx [mailto:irca-bounces@xxxxxxxxxxxxxxxx]
>On Behalf Of Craig Healy
>Sent: Wednesday, November 09, 2005 6:44 PM
>To: Mailing list for the International Radio Club of America
>Subject: Re: [IRCA] SE FL IBOC Status
>
>
>The JVC KD-SHX900 HD Radio I bought sounds reasonably good on WHJJ and WBZ.
>I'll ignore the 8 second difference in the WBZ audio between analog and
>digital.  However, the coverage is abysmal.  WBZ at 30 miles is unlistenable
>in digital.  Decodes maybe half the time at best.  WHJJ is maybe 15 miles,
>if that.
>
>
>  
>
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