"Russ" wrote in message
...
Art,

Without the radio signal from the transmitter, the receiver will
respond to noise and move the control servos to unpredictable
positions, pretty much always resulting in a crash. Modern PCM
receivers can be programmed to assume pre-set control positions in the
absence of the control signal. This will usually result in a crash.
I have hundreds of hours flying RC model aircraft.

Off the wall question: What's the "butt-kickinest" high end radio these
days? PCM's been around for many years, anyone doing error correction, FEC,
Direct sequence spread spectrum?

On Fri, 13 Aug 2004 22:19:31 -0500, "Dave VanHorn"
wrote:


"Russ" wrote in message
.. .
Art,

Without the radio signal from the transmitter, the receiver will
respond to noise and move the control servos to unpredictable
positions, pretty much always resulting in a crash. Modern PCM
receivers can be programmed to assume pre-set control positions in the
absence of the control signal. This will usually result in a crash.
I have hundreds of hours flying RC model aircraft.

Off the wall question: What's the "butt-kickinest" high end radio these
days? PCM's been around for many years, anyone doing error correction, FEC,
Direct sequence spread spectrum?


Hi Dave,

I've been away from it for a couple of years, moving, work and
other expensive hobbies. The high-end Airtronics, JRs and Futabas are
still the top of the line. They use PCM but no ECC, FEC or SS. The
transmitters are pretty programmable though. No need for a seperate
heli radio, just program the mixing for a heli control system. The
computer allows for memories for different models, each with custom
mixing and end-point adjustment. No more sliding servo trays for
elevon deltas. Just put a servo on each control surface and mix
appropriately. Dual servo ailerons or flaperons, no problem - just
set 'em up in the TX. You can spend a grand easy on a radio these
days.

Funny, I just got a bunch of stuff out of storage last week
(new house - YAY!) and was looking at a couple of planes longingly.

Russ