[IRCA] WBAL and IBOC hiss from WTAM

[Bill Harms <philcobill@xxxxxxxxxxx>]

Last night, I noticed that at times, WTAM was bothering WBAL again. So I 
decided to look at my Drake R8's s-meter. I realize that this is not 
very exact, but it gives a rough idea of what is going on. WTIC was not 
a factor in this test because their signal was much weaker.

As a base line, I tuned WBAL to the strongest signal strength with was 
about s9+35/s9+40 and it was still getting hissed about 1/4 of the time. 
I quickly went back and forth between 1090 and 1100 to see what WTAM's 
signal strength was relative to WBAL when I heard hiss on 1090. WTAM's 
signal varied from about s9 to s9+25/s9+30. As one would expect (perhaps 
even axiomatically), when WTAM's signal was above S9+20, the hiss was 
easily noticeable on WBAL. When it was less than s9+15, the hiss was not 
as noticeable.

For reference, WTIC never made it above s9+10 and as I noted above, did 
not appear to be a factor.

Remember I am within WBAL's NIF contour, and should not be hearing IBOC 
hiss from WTAM at all.

-- 
Bill Harms
Elkridge, Maryland

Check out the Spokane Radio History Pages
http://spokaneradio.philcobill.com

and the Spokane Radio Tower Pages
http://spokanetowers.philcobill.com
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