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New Contour Lines on Coverage Maps

Some of you may have already noticed, but it's time for the offical announcement. I determined how to generate contour lines similar to those provided by the FCC, and am now generating my own. You can see an example here: http://www.rabbitears.info/contour.php?appid=1317462

Now, before I get a flood of e-mails, I'm aware that any stations that have antenna rotation, the rotation was not accounted for in the map. Here's an example of the problem: http://www.rabbitears.info/contour.php?appid=1440290

I decided to let the lines run anyway, and have a fix for the problem ready to go to apply afterward. Please be patient with me as I'm backlogged on TSReader data uploads and working on something new, in addition to dealing with this issue. The maps may also appear and disappear on and off over the next few days as I work on the database and the code that supports everything, so don't be alarmed if that happens.

However, should you spot any faulty maps that are NOT suffering from the antenna rotation problem, please let me know. W51EG-D will not generate a map for some reason and hangs the script I wrote, but otherwise, every station in the US (except Alaska, Hawaii, and the various US territories) at least ran through the process, so far as I know. I tried to run Canada as well but the script hangs on multiple Canadian stations, so other than the few I was able to manually generate, the Canadian stations will have to wait.

Once I'm completely sure the maps are generating correctly, I'm going to rerun all the population numbers, so all of that will be coming up to date as well. Hopefully this will go quickly and smoothly. Opinions are appreciated. =)


1. On Wednesday, August 24 2011, 13:36 by re_nelson

The contour lines are a great addition. My only suggestion is to document somewhere what the colors red and blue denote.

2. On Wednesday, August 24 2011, 20:45 by Trip Ericson

It's on my to-do list. =)

3. On Wednesday, August 24 2011, 22:17 by Trip Ericson

One item off the todo list.

4. On Wednesday, August 24 2011, 23:38 by re_nelson

Thanks Trip. The legends for the L-R maps are a good addition, too.

5. On Thursday, September 1 2011, 12:09 by WVVC TV 40 Utica

I will be visiting this site often as I learn more about solutions for "free over the air TV viewers " reception problems. I am very interested in your contour work.