This is a complete 'How To' use the site '2150.com':
I've done this many times for individuals that are having issues receiving stations or have no idea what/where they are or even if they are within range.
It's too bad AntennaWeb always gets referenced. It's no doubt for it's 'simplified' interface. I find it VERY lacking, failing for these reasons:
1. Most that come to an internet forum are not your average 'joe sixpack' and can comprehend something better then just simple color charts.
2. No idea how/where those results come from.
3. It gives you no data for transmitter output or antenna height which tells you nothing.
4. It is sponsored by the CEA which is only in the business to sell you something.
There also is a site called TVFool. The results are graphs and pie charts, but they are way too small, cluttered and hard to read. The site substitutes
computer modeled speculation for actual ERP and HAAT data. There's too many variables involved to bother guessing received signal levels.
Just a few initial steps are all that is needed to have a far superior list for your local stations. It even includes Canada, where that 'other' site doesn't seem to know the country exists.
Step 1; Go here and enter your zip code, then click 'search' (it will give your approximate coordinates);
http://geocoder.ibegin.com/geolive.php?view=auto
Step 2; Do a copy/paste of those coordinates watching exactly what you copy. Include the '-' in the longitude with no spaces before either number and then go here;
http://www.2150.com/broadcast/default.asp
Step 3; Select how you want the search to be configured. Choose the distance you want to cover and be sure to check "Include Expired Records" and "Include Construction Permits"! I check also "By distance".
Step 4; To be really accurate you need to find the magnetic declination of you location. A zip code should is sufficient. The results now include a map with a compass showing magnetic north and true north;
http://www.ngdc.noaa.gov/geomagmodels/Declination.jsp
Step 5; Click on "Compute Declination" and do a C&P to the space provided at the 2150 site (default is -13.25) and click on "Show Stations".
Step 6; If you are satisfied with the results you can 'save' this list as a bookmark by clicking on the "Bookmark this link to save this report" link which will bring up another window. This way, all you have to do is refer back to this bookmark (after you saved it in your bookmarks) and all your data is there.
Notes;
Column 3; Channel, the first is the actual digital channel, the one in () is the original analog number. Unfortunately, this doesn't show if the station will be reverting back to their original channel (as of yet).
Column 10; HAAT (Height Above Average Terrain) this isn't just the tower height, but a combination of that height and the average elevation of the surrounding area.
ERP (Effective Radiated Power) is not the transmitter output, but the combined gain and loss of the system.
Column 11; The circle with the dot in the center is the transmitter location, NOT your location! Where that red line meets the outer circle is YOU!
Aim your antenna at the center.
Column 12; If you click on that image, it will show you a map of the transmitter location. Please note, the city stated for the licenesse is rarely where the xmitter is actually located. Some may be 30 miles away.
Hope this helps................