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HelicopterRadio - Servo - Gyro - Gov - Batt › TX recommendation for Futaba R149DP
05-06-2005 02:58 PM  12 years agoPost 1
jlobeerrNovice - The sky - My Posts: All  Forum  Topic

Hello,
I purchased a heli that came with a Futaba R149DP receiver (72mhz and on channel 53), and was wondering which Futaba 9C Tx i should get, since there are different versions (9CAPS, 9CHPS).

I'm might also get the Co-Pilot system in the future which uses FM, and was wondering if the PCM TX that i get will work with it.

Thanks

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05-06-2005 03:30 PM  12 years agoPost 2
BarracudaHockey

rrMaster

Jacksonville FL

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You probably want to go with a 9CH or 9CHS (super)

The H version comes with a smooth throttle and idle up switch is on the left and throttle hold is on the right.

The differnce between the P and F version is pcm and fm, but since your only getting a transmitter it's irrelevent since the only difference is the reciever you get with the set. The transmitter will do fm or pcm.
Save your money on the co-pilot and spend it on fuel.

Andy
AMA 77227
http://www.jaxrc.com

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05-06-2005 04:05 PM  12 years agoPost 3
jlobee

rrNovice

The sky

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Thx for the reply, would you guys recommend i get the R319DPS Synthesized Receiver and TX, rather than going with crystals?

And the reason for wanting a Co-PIlot is its "DSR technology (Digital Signature Recognition) blocks all interference by memorizing your transmitter’s unique signal and rejecting all others. " and its failsafe feature.

Another thing, PCM vs FM, ive heard that with FM you are able to see when there are signal issues, as the heli will jerk around, but with PCM you suddenly lose control without any indication (another reason to get the Co-Pilot).

And is the 9CHPS mode 1 or mode 2, and the difference between these modes?

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05-06-2005 08:14 PM  12 years agoPost 4
BarracudaHockey

rrMaster

Jacksonville FL

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Mode 1 and 2 has to do with what functions which stick is.

Mode 2 is what most americans fly, throttle/tail on left fore aft/left right cyclic on the right stick.

Mode 1 I believe switchs the throttle/collective to the right and fore aft cyclic to the left stick.

A 9CH will do either, you hold a button down when turning it on and then set the mode and cycle the power. You still would have to move the throttle ratchet and return springs to convert it to a different mode.

Yes in a FM set up you can see/experiance interference. With PCM it goes into lockout or failsafe mode. If it doesnt come right back up, the controls go to a predermined setting, such as throttle to idle, cyclic to neutral and then you pray you get it back before it hits something.

Andy
AMA 77227
http://www.jaxrc.com

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