Re: JERRY BLAVAT AND RON JOSEPH (RJ) DID A COMMENDABLE JOB HOSTING MOVIE DOCUMEN
Rule #3 of the Broadcast Handbook: Know what the heck you, as a 100mw radio station ... "planner" are talking about: I've done some research in pictures to help you out, Dennis. Note: This isn't, certainly, Philadelphia ... it's a little burg in New Hampshire.
Here's slide one for 100mw at 1700 AM (no interference there, certainly) Radio Derry (no call letters needed.)
http://radioderry.com/_wsn/page2.html
Note the "distance bar" in the upper right hand corner. Not in miles ... but in feet. Measure the 1800 ft. "main lobe" (the inner circle for those following along,) and you tell us how you get "primary" coverage of 3-5 miles. It's not even a mile, as we've been trying to tell you ... and, again, this isn't Philly.
Slide #2, please: Thank you. Here is a coverage map of WDER Radio 1320 ... a 1,000 watt blowtorch in Derry, New Hampshire. I might add that at this pattern (nighttime) the "theoretical pattern" requires FOUR TOWERS and notice the distance in the red circle ... again, the "primary signal" coverage of this pattern:
http://radio-locator.com/cgi-bin/pat?call=WDER&service=AM&status=L&hours=N
That MIGHT be 5 miles ... maybe, of "primary coverage" ... and directional at that.
Now, if we could return to slide #2 in our presentation, please ....
http://radio-locator.com/cgi-bin/pat?call=WDER&service=AM&status=L&hours=N
Note that the farther from the tower site (with four towers,) the signal is "fringe" at best and goes all of ... 10 miles.
Incidentally, this station broadcasts at 10,000 watts day from a three tower directional. The pattern is 20 miles through to the fringe area. The primary coverage is about 15 miles.
I have a dozen other examples if you need them, since, obviously, you've done no research on the matter. I also can fill you in on the Ramsey xmtr and any other gear you need. Drop the Innovonics, unless you're going into CB or a traffic TIS. Doo wop will sound like Bee Poop.
Why not save yourself time, money and needless effort. Go to the Internet. A lot cheaper and get some reach with your own brand of radio, seriously. You'll be glad you did...
200 ft. on a mast with a 9ft stick, huh? For AM? Good luck. May your dream come true.