Originally Posted by
Appowner
Anything, ANYTHING to include the air will attenuate the signal of any radio. Placing the 72 antenna outside the fuselage gets it away from ANY potential interference. Do you have to? NO! But I have also seen it solve problems.
The 2.4 has little choice based on the current designs. But try 2.4 in a submarine sometime for a real lesson in radio systems. And a 2.4 low in the hull of a boat can be blocked by waves. Makes for loads of fun.
I agree that separating the antenna from metal pushrods, cables, servo leads can improve signal reception. That however is not what we were discussing. The claim was that the fuselage shell ( most cases balsa ) could impede or attenuate signal. You can theorize all you want but unless you have supporting data it is nothing more then theory especially at 72mhz. In fact as frequency increases it would be more of a consideration. So why was it such a concern with 72mhz but not with 2.4gz at a lower power level? Theory is nothing more unless it is put into practice. Although I agree that you have more education outside of the hobby as eveidenced by the extensive resume you for some reason felt the need to PM to me, I have much more experience and at a much higher level in the hobby then you. Please keep that in mind.