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05-08-2005 05:36 PM  12 years agoPost 1
HellRaiser

rrApprentice

Bristol, UK

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I know not the best radio around but trying to help a buddy out.
Is the RX 8129 reciever compatible with the Sanwa RD6000 tx unit, the 8129 is a PCM rx unit and seems to have reversed some of the control functions, throttle is on right stick and aileron on left and yes I have plugged the servos into the correct channels.

Be happy

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05-08-2005 05:46 PM  12 years agoPost 2
zoom boy

rrKey Veteran

N.E. Lincolnshire UK

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Hmm sounds like the mode has been changed, its not mode 1, but there are some others, 3&4 not sure about their stick arrangements though, just check its still in the mode its supposed to be in

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05-08-2005 05:49 PM  12 years agoPost 3
AirWolfRC

rrProfessor

42½ N, 83½ W

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Mode-1 or mode-2, aileron is always on the right stick.

Mode-2 is the same as full scale and therefore prefered.

Check your servo connections again.

Wolfgang

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05-08-2005 05:53 PM  12 years agoPost 4
HellRaiser

rrApprentice

Bristol, UK

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I have double checked servo connections, tried a RX 611 reciever, everything ok, but as buddy has bought another heli he needed another reciever, I think the RX8129 is only compatible with the new RD 8000 radio but want to make sure before putting foot in mouth when I send him back to shop.

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05-08-2005 05:57 PM  12 years agoPost 5
AirWolfRC

rrProfessor

42½ N, 83½ W

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Receivers don't care about which function is on what channel. About the only thing they do is that some of them have fail-safe built in. Other than that, they only pass on the signal given by the TX.

If you get smooth servo movement, then the RX is compatible with the TX.

Check your servo connections again.

The RD6000 has the same channel assignments as the RD8000 for the first 6 channels.

Wolfgang

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05-08-2005 06:06 PM  12 years agoPost 6
HellRaiser

rrApprentice

Bristol, UK

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Hmmmm, all servo connections triple checked, when setting up mode of TX, options are;
PPM, this works ok with RX 611,
PCM1, this sort of works but channels mixed up on RX 8129
PCM2, nothing works at all, so presume PCM2 is the right mode but dammed if I can work out why it is mixing up the channel outputs,
just thought someone else with Sanwa exp will tell me that these two are not compatible.
I use Futaba myself so not really an expert on Sanwa, we have two machines working fine with RX611 units, still not sure why he bought the PCM one, but there you go. stops me getting bored especially as it is persisting down with rain so no flying today.................

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05-08-2005 06:07 PM  12 years agoPost 7
HellRaiser

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Bristol, UK

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OOPS,

I mean PCM1 is presumably the right mode....

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05-08-2005 06:09 PM  12 years agoPost 8
AirWolfRC

rrProfessor

42½ N, 83½ W

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So just connect the servos in the way that gives the proper signal to the proper servo and call it good.

Wolfgang

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05-08-2005 06:19 PM  12 years agoPost 9
HellRaiser

rrApprentice

Bristol, UK

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already though of that but as we to do some mixing because three servos required to get collective to work, making me brain ache,
probably easier to send him back to the shop,
thanks for your help anyway

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05-08-2005 07:03 PM  12 years agoPost 10
Raptor_in_Swede

rrApprentice

Stockholm /Sweden

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According to the RD6000 manual channel #1 and channel #3 outputs are changed when using PCM compared to PPM.

PCM => Ch #1 = elevator , Ch#3 = throttle
PPM=> Ch #3 = elevator , Ch#1 = throttle

PCM 1 should be used with PCM RX-8129 according RD8000 manual

Raptor 30V1/TT39H/Hatori#415/GY401_9253
Hirobo GPH GT/TT50H/Hatori #544/GY401_9254
RD8000

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05-08-2005 11:07 PM  12 years agoPost 11
I3DM

rrProfessor

Israel

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Raptor_in_Swede is bery much correct, just switch bwtween channels 1 and 3 and go fly !!

ask me how i know...

BTW - i got a couple of 8129's for sale in the classifieds..

www.liorzahavi.com

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05-10-2005 08:56 PM  12 years agoPost 12
HellRaiser

rrApprentice

Bristol, UK

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Thanks for the info guys, swapped around the servos, all appears to be working ok.

Another little problem, I am trying to program a JR Ergo 36 which has CCPM, using the radio mixes I can get the left/right cyclic working ok when using right stick and also get the left/right cyclic servos working in tandem when pttuing on colective but cannot get the fore/aft cyclic to work with the two above, any advice greatly appreciated.

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05-10-2005 09:42 PM  12 years agoPost 13
I3DM

rrProfessor

Israel

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maybe you need to reverse the elevator servo ?
do you have a chat software like messenger, skype or anything like that ? i will gladly talk you through it.. been there done that.

www.liorzahavi.com

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