You appear to have
at least a Ham's knowledge of antennas (not to say
that a Ham's knowledge is trivial), so why don't
you try out the modifications you mention and report
back to us with the results? Experimental confirmation
is where the rubber meets the road (pun intended
- RC car, get it?
I fly RC airplanes and helicopters, and
before every flight, I have the system turned on
and walk away from the model (with someone holding
it for safety) with the transmitter antenna collapsed
and verify that the operational range is sufficient
both with and without the engine or motor running.
Electric-powered craft are particularly harsh on
RC receivers (although the new breed of brushless
motors is minimizing that problem).
helicopter, operating at 72 MHz, has a wire receiver
antenna that is wrapped several times around one
of the landing skids. It surely violates every rule
of antenna efficiency, yet for the distances at
which the small heli is operated, the controllable
range is fine. The same is probably true for your
One difference with RC cars,
though, is that people are usually racing them while
standing in close proximity with as many as 8-10
other guys who could be just one channel away. In
that case, the bleed-over from a transmitter on
an adjacent channel could cause a poorly tuned antenna
to be susceptible to interference.
I and others on this forum would surely be interested
in your results.
- Kirt Blattenberger
RF Cafe Progenitor & Webmaster