PCM Radios

[grr]

Does anyone know if the after market electronics offered by SubTech and Engel (pitch controllers, BTS etc. ) are compatible with PCM radios? I am currently trying to decide between a Futaba 9C (PCM) or F14 (FM) system. Any thoughts or insights would be greatly appreciated.

[tsenecal]

I have the futaba 9c

I have the futaba 9c and two of the engle bts switches and they inter-operate fine.

Tim

[anonymous]

Yes, PCM radios work just

Yes, PCM radios work just fine. (The servo outputs are identical.)

David

[JWLaRue]

I am (was?) reasonably sure

I am (was?) reasonably sure that the SubTech electronics do not work with PCM radios......has this changed? They work with FM/PPM.

-Jeff

[grr]

Thanks for the info guys.
Glenn

Thanks for the info guys.
Glenn

[skip asay]

Jeff LaRue said - "I

Jeff LaRue said - "I am (was?) reasonably sure that the SubTech electronics do not work with PCM radios......has this changed? They work with FM/PPM."

Au contraire. SubTech electronics work just fine with AM, FM, AND PCM radios.

The signal sent from transmitter to receiver is different but signal from receiver to servos, APC-4, and other electronic devices is still the same.

What sets PCM radios apart is that the receiver will output the LAST VALID SIGNAL received from the transmitter on loss of signal. This means that failsafes that work on the missing pulse principle won't function since they still see a valid signal. PCM radios can be programmed for failsafe under these circumstances but, to the best of my knowledge, failsafe activation is instantaneous (no delay). Most PCM radios (again, to the best of my knowledge) can be programmed around this by either disabling the failsafe function or by programming a signal considerably outside normal signal parameters (1.00 - 2.00mS).

Skip Asay

[JWLaRue]

Skip,

Many thanks for the clarification.

-Jeff

Skip,

Many thanks for the clarification.

-Jeff