r /c INTERFERENCE ?
10-03-2004 | 06:19 PM
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From: , WI
r /c INTERFERENCE ?
hi,
I'm building a 6 ft. model of a Cessna 150. The cables from the elevator, rudder, throttle and both aileron servos to the receiver are all about 2 and a half feet each. I'm also using a gas engine with a spark plug and magneto. I'm concerened that the long leads and spark plug/magneto will cause radio interference. Is this anything to worry about and if so what should I do and where do I get the stuff to do it. The receiver is dual conversion FM.
P.S. I already posted this question but it seems to have disappeared, so If any one has already answered, please answer again.
I'm building a 6 ft. model of a Cessna 150. The cables from the elevator, rudder, throttle and both aileron servos to the receiver are all about 2 and a half feet each. I'm also using a gas engine with a spark plug and magneto. I'm concerened that the long leads and spark plug/magneto will cause radio interference. Is this anything to worry about and if so what should I do and where do I get the stuff to do it. The receiver is dual conversion FM.
P.S. I already posted this question but it seems to have disappeared, so If any one has already answered, please answer again.
10-03-2004 | 06:24 PM
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From: N. Charleston,
SC
RE: r /c INTERFERENCE ?
http://www.i4cproducts.com/ You might try a servo isolator. I use one of these and never have a glitch.
10-03-2004 | 08:08 PM
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From: St Louis, MO
RE: r /c INTERFERENCE ?
Your setup is not uncommon at all. Heavy duty extensions will minimize power loss in the long extensions. Do a range check with the engine running as a final test and go fly.
Tom
Tom
10-04-2004 | 02:28 AM
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From: San Jose,
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RE: r /c INTERFERENCE ?
The first thought is to keep the whole installation of radio gear and motor ignition as simple
as possible. The second thought is to keep all Ignition components separated from all of the radio
components as far as you can. This also means servo extenions and especially the antenna. I would
prefer shorter radio wiring, but if that's not possible use zip ties or some method to hold the wires
in place. I am not familiar with your engine or ignition system. Generally speaking, it's best to have the
Spark Plug wire shielded and the shielding grounded. If there is a metal spark plug cap on the spark plug
that will work as your ground.
I have a Midwest 300 (25%) with a ZDZ 40 and I use JR radios. I have not had any interference problems
at all. I have not had to add any sort of Isolators or anything else to prevent interference. Make sure all
of your wiring and connectors are in good working order. Do a range check with engine not running. If some
one is there to help you, do a second range check with engine running at different RPMS. If the range checks
pass, go fly. If not, do not fly until the range checks do pass.
Finally, when all else fails, follow instructions. If you don't have the instructions for your equipment, get them.
If there's something in the instructions that you do not understand, ask questions here on this site, in the respective
forum.
Good luck and good flying..
Gerald
as possible. The second thought is to keep all Ignition components separated from all of the radio
components as far as you can. This also means servo extenions and especially the antenna. I would
prefer shorter radio wiring, but if that's not possible use zip ties or some method to hold the wires
in place. I am not familiar with your engine or ignition system. Generally speaking, it's best to have the
Spark Plug wire shielded and the shielding grounded. If there is a metal spark plug cap on the spark plug
that will work as your ground.
I have a Midwest 300 (25%) with a ZDZ 40 and I use JR radios. I have not had any interference problems
at all. I have not had to add any sort of Isolators or anything else to prevent interference. Make sure all
of your wiring and connectors are in good working order. Do a range check with engine not running. If some
one is there to help you, do a second range check with engine running at different RPMS. If the range checks
pass, go fly. If not, do not fly until the range checks do pass.
Finally, when all else fails, follow instructions. If you don't have the instructions for your equipment, get them.
If there's something in the instructions that you do not understand, ask questions here on this site, in the respective
forum.
Good luck and good flying..
Gerald
