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[quote:a04b4d13ae]That’s kind-of what I was thinking about its usability, based on the field strength levels (15848uV/m @ 30 meters, as opposed to 10000uV/m at 3 meters for 27 MHz and lower for some other bands (except 900MHz & above)) permitted.[/quote:a04b4d13ae]
Here’s another way to look at it: 10000uV/m at 3 meters for 27 MHz is pretty good by Part 15 rules, but have you ever heard of a 5 watt CB transmitter reliably going more than a few miles under normal conditions. 114 miles is way beyond reality. You might just barely hear the signal at 114 miles under freak conditions, but that’s not what you are asking for.
15848uV/m @ 30 meters isn’t significantly higher, so you still can’t expect a miracle.
Look at http://www.radio-locator.com/ Many high power broadcast stations only go a hundred miles or so.
I think your best bet is to resort to landline telephone (or cellular) for the long runs like 114 miles. If you have some short runs, like 5 or 6 miles, look at the STL modules with directional antennas. Mix and match according to distance. Depending on your telephone service, you might just find telephone to be cheaper in the long run than investing in STL-type equipment that may be finicky and expensive.