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Old Airtronics Rx vs. New Airtronics Rx?

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Old 04-18-2004, 08:31 PM
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crashed2
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Default Old Airtronics Rx vs. New Airtronics Rx?

A friend gave my an Airtronics 92985 PCM receiver with the old style plugs. I know the wiring is different than the Z style plugs, and a couple of the servo wires need to be switched, to use with the new style plugs, but I don't know which ones. Would someone tell me which ones? Also, will this receiver work with a JR transmitter sense they are both positive shift? I have an 8103, and if so, which mode, S-PCM or Z-PCM?

Thanks!!!!!!!!!!!!!!!!!!!
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Old 04-18-2004, 09:48 PM
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Default RE: Old Airtronics Rx vs. New Airtronics Rx?

For the servo wiring see--
[link=http://www.fatlion.com/sailplanes/servos.html]servo wiring page[/link]

The shift thing- i dunno.
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Old 04-19-2004, 02:51 AM
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MikeL
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Default RE: Old Airtronics Rx vs. New Airtronics Rx?

PCM systems are not compatible between different brands.
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Old 06-09-2005, 12:54 AM
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Default RE: Old Airtronics Rx vs. New Airtronics Rx?

I have two Airtronics Spectra PCM radios that have been completely reliable for the past 14 years. The recievers seem to be unique to the Spectra and Vision PCM systems. The last time I looked for an extra reciever they were over $150.00. The transmitter output is over half a watt and will drain batteries in 1.5 hours. I fly near a city of 1.5 million people and have never had a glitch or hold. I am very pleased with my 1989 Airtronics equipment, I hope it will go another decade.
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Old 06-09-2005, 01:40 AM
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JohnBuckner
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Default RE: Old Airtronics Rx vs. New Airtronics Rx?

As already indicated all PCM systems are propreitary and there is no interbrand compatability with Tx's, Rx's of different brands. In addition to this some brands Futaba and Hitec have older and newer PCM systems that are not compatable with their own brand.

With your old style Airtronics Rx it will be neccessary to rewire or use adapters on all the servos of any brand including Airtronics (Z) servos. Do not forget to to do the switch harness also unless you have an original switch harness. Old style Airtronics plugs are #3 pin positive with center pin negative. All other current plug systems are now centerpin positive. So to use these (inculding the switch) it will be neccessary to reverse the the positive and negative leads to a #3 pin positive to use with that Rx.
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