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-   -   Different results for WBME, plot vs Map (http://forum.tvfool.com/showthread.php?t=8608)

retired17 10-May-2012 4:20 AM

Different results for WBME, plot vs Map
 
At Zip Code 60099, WBME's Noise Margin in Radar Plot (31.6) doesn't match what is shown in Maps (10.6).

Dave Loudin 10-May-2012 11:40 AM

Are you comparing an exact address or a zip code against the exact placement of the receive icon in the "start maps" option?

retired17 10-May-2012 2:46 PM

Quote:

Originally Posted by Dave Loudin (Post 24364)
Are you comparing an exact address or a zip code against the exact placement of the receive icon in the "start maps" option?

I just enter the zip code both times. The ranges (46 miles) and directions in both cases are the same. Just the Noise Margins and the Received Powers are different.

Dave Loudin 10-May-2012 7:48 PM

Hmm. Are you comparing radar plot to radar plot, then? Are there other stations that have this symptom?

No matter, if you are going to use the tool, you should use the exact receive location. It's easier to do with the maps option, as you can drag the receive icon to the right place, zooming in the map as needed, then updating the antenna height and clicking the make radar plot button.

retired17 10-May-2012 8:57 PM

I understand what you want me to do, but I was wondering if you have actually run TVFool in the 'Check your address for Free TV' option and the 'See which TV stations you can get on a map' option. That's when I get different results when I just put in the Zip Code 60099, nothing else.

If that is wrong then post a note on the Home Page stating you may get different results if you do what I just said.

Dave Loudin 11-May-2012 7:16 PM

I have run that option for many, many locations without such a problem. Please don't run with just a zip code - it defeats the purpose of having reasonably accurate terrain taken into account.

retired17 11-May-2012 10:01 PM

Dear Dave,

You are absolutely correct. Putting in a specific address does yield the same results with both options. Thank you for taking the time to investigate. Like you said, using zip codes alone may not always produce accurate results.


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