akschu

My Feedback: (5)

Hello,

I have a new FP-R127DF I bought from Toms RC on ebay:

http://cgi.ebay.com/ws/eBayISAPI.dll...tem=6040665668

The unit was new in the packaging and I got a futaba crystal with it, but it seems to have glitching problems. When I have my 9c turned on and the model sitting on the bench it twitches. I'm just now installing the radio in the model for the first time so the engine isn't running nor is there any metal to metal contact so I think it is the reciever. I replaced it with a AFS one I have left over from a nexstar and it works just fine (except it doesn't have enough channels) so I think that confirms that it is the reciever.

To make sure it's not a crystal problem I switched the crystals and the problem remained with the R127DF.

Any ideas on how to resolve this issue? I'm not sure what to do next.

Thanks,
schu

akschu

My Feedback: (5)

Okay, I have a solution:

After reading [link=http://www.rcuniverse.com/forum/m_2978490/mpage_2/key_6v%2Cfutaba%2Cglitch/tm.htm]this[/link] thread I concluded that the R127DF RX doesn't work with hitec digital servos. So I swapped the RX with a hitec supreme 8 I have in another plane that uses hitec analog servos. The R127DF seems to work glitch free with the analog servos and the hitec rx works fine with the hitec digitals.

I'm not sure why there is this incompatibility, but switching the rx solved my problem. From now on I'll stick to using futaba rx with futaba servos and hitec rx with hitec servos.

schu

akschu

My Feedback: (5)

Looks like I spoke too soon, the reciever is still glitching with the analog servos, though not nearly as much.

Here is the current setup:

R127DF
HS-81 on throttle
HS-635HB on rudder
HS-475HB on elevator
(wing and aileron servos are not connected)

Though it doesn't seem to have massive glitches like it did on my digital servo bird, the rudder servo gitters a little bit so I don't think I really want to chance it in the air.

Any thoughts on resolving the issues with this RX?

schu

Bax

My Feedback: (11)

How does it work with Futaba servos? If you still have the difficulty, it could be the receiver, or something else. You can send it to the service center for a checkout.

akschu

My Feedback: (5)

It does work with futaba servos, so it sounds like this rx is being picky so I doubt sending it in will resolve anything. I'll just swap it for a hitec and stick with a common brand for my flight package.

Bax

My Feedback: (11)

When you "mix and match" brands of equipment in an installation, there is no guarantee that they are all compatible. Futaba can only guarantee that their receivers will work with their servos, transmitters, gyros, and so on. Use other manufacturer's equipment, and you cannot be given any assurance of what the performance may wind up to be.