Virtual1
Senior Heliman
Location: Waterloo, Iowa - USA
My Posts This: Topic Forum | Given the power output of a RC transmitter, and the sensitivity of a dual-conversion FM receiver, and assuming an ideal antenna, max range point-to-point transmissions (i.e. no interferance) is just a little under 2.4 miles. FM receivers exhibit "capture effect", meaning you either get one transmission or the other, never a bleed of both. (though it may "picket-fence" from one to the other when you are right at the boundary) So until your RC gets closer to the other transmitter than you are, you're fine. The strength of radio signals RAPIDLY drops as distance increases, so a receiver 1 mile from its flier is quite safe from another transmitter 1.2 miles away. (double the distance = 1/4 the signal)
If you don't plan to fly your RCs more than one mile from where you stand, you should to be at least two miles away from any other fllyer. I don't think most people fly their helis more than a mile from where they stand, so 3 miles should be plenty.  Anything beyond 4.8 miles is moot, as the RC would surely lose the 1st transmitter before picking up the 2nd. Given that RC antennas are far from perfect, 4.2 miles is probably well past your ability to "hand off" an RC, so go for it.  |
