Re: [IRCA] Stopping HD Radio

[Brett Saylor <bsaylor@xxxxxxxxx>]

The SDR-IQ receiver with Spectravue software is an excellent tool for  
looking at the effects of IBOC. It's also great for recording large  
swaths of spectrum for later analysis.

An example screenshot on my blog:

http://dx-nexus.blogspot.com/2007/09/iboc-night-3.html

shows the tell-tale signature of IBOC transmissions - a 5 kHz wide  
white band positioned +/- 10 kHz away from the broadcaster. Compare  
that screenshot to this example:

http://dx-nexus.blogspot.com/2007/06/look-of-iboc.html

taken three months before nighttime IBOC was authorized, and you can  
see the difference in noise levels on that part of the band.


Brett Saylor



> Hi Bill,
>
> Several years ago, I had a friend who brought one over
> to my house. His was PC software that would generate
> it's output on the computer monitor.
>
> Looking at the internet, there are some AUDIO spectrum
> analyzers that can be bought for less than $100, but
> finding RADIO spectrum analyzers is a LOT more
> expensive. The other trick is to find one that will go
> down 500 kHz as many start 1, 5 or 9 MHz.
>
> If anyone knows of a software controlled radio
> spectrum analyzer that will cover the 500 to 30000 kHz
> range, and is reasonably priced, please let us know.
> Something like this would be very handy in the ham
> shack as well.
>
> LXXIII de Joe, KJ8O
>
>
>
> --- Bill Harms <philcobill@xxxxxxxxxxx> wrote:
>
>> Aren't there some software packages which can do the
>> same thing? Just
>> asking.
>>
>> Bill


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