Problems!! 14MZ 2.4 R6014FS

[prizzy]

I understand. Thanks catman, sorry for making you repeat yourself

[Judge]

	Quote: Originally Posted by Simpleton
	It's a double-edged sword, the 'net also brought this issue to the surface. I'd never heard of it until this thread,

You had not, but Futaba was aware, sort of, since the OP in this thread gave them no time to respond before hitting the Net. I love this notion that were it not for the Net that Futaba, or JR, or whomever would ignore problems and we poor modelers would suffer the consequences.

There might be utility in the idea of people becoming aware of the potential problem, but the downside is that before they can even act people start complaining about poor design, poor service, etc.

Oh well, like you said, a double edged sword.

[Simpleton]

	Quote: Originally Posted by Judge
	You had not, but Futaba was aware, sort of, since the OP in this thread gave them no time to respond before hitting the Net. I love this notion that were it not for the Net that Futaba, or JR, or whomever would ignore problems and we poor modelers would suffer the consequences. There might be utility in the idea of people becoming aware of the potential problem, but the downside is that before they can even act people start complaining about poor design, poor service, etc. Oh well, like you said, a double edged sword.

Right, but say one guy sends in his 6014 and says it quit. Futaba finds nothing wrong with it, sends it back, he mounts it up and it flys fine until it gets hot, then it quits again. Rinse, repeat. I didn't say Futaba was trying to hide anything, or deny anything. They honestly might not have known that ambient temperature was the problem.

Now they have their team of experts working on a fix. This is good, except for Joe Blow, not being privvy to the inner machinations of Futaba, goes off and crashes because, like me, he'd not heard that high ambient temperatures MIGHT cause a problem with certain Futaba FASST RXs. So although Futaba is doing everything humanly possible to pinpoint the problem related by the OP, Joe Blow has a wadded up pile of crap in the back of his truck.

Now, if I'm Joe Blow, I'd be more than a little happy to read a thread where others were relating similar experiences with similar gear BEFORE I went and wadded my plane up. Kudos to Futaba for doing everything they can to get a handle on the situation, no doubt about it. Still, if this tread can keep even one Joe Blow from taking a dirt nap, then it is very helpful-regardless of what Futaba is doing.

[freya1]

SIMPLETON you sure got it right, That is what I uderstood was the whole purpose of this tread from the first post, nobody was saying we wanted a solution overnite, just aknowledgment to the problem to inform and keep anybody fromm crashin or hurting somebody, and it seems as of now it is working out.
Thanks for all the good info, and Futaba please keep us posted on any findings.

[Dave Dietrich]

Would it be possible to get some pictures of different setups that are having the problem. We might start to see some similarities. Also some pics of setups that are not having any problems.

[BR289]

	Quote: Originally Posted by dubd
	Judge, given that you are affiliated with Futaba, the best thing you can do is stay out of this. The more you post, the more of a negative opinion I have about Futaba.

I dont agree with that statement one bit. I agree with everything Judge has said to this point and being part of Futaba probably doesnt change anything he has said. I personally am glad he "chimes" in.

[dubd]

	Quote: Originally Posted by BR289
	I dont agree with that statement one bit. I agree with everything Judge has said to this point and being part of Futaba probably doesnt change anything he has said. I personally am glad he "chimes" in.

You don't have to agree, it's my opinion. I am sure others feel he is being helpful, but I do not. I am not saying he is a bad guy or anything.

[catman3070]

	Quote: Originally Posted by Dave Dietrich
	Would it be possible to get some pictures of different setups that are having the problem. We might start to see some similarities. Also some pics of setups that are not having any problems.

Dave, I am not sure if you have been watching this thread from the beginning, but it appears every installation is different. Also installation at this point doesn't matter since it has been determined heat is the issue.

[catman3070]

	Quote: Originally Posted by Judge
	You had not, but Futaba was aware, sort of, since the OP in this thread gave them no time to respond before hitting the Net. I love this notion that were it not for the Net that Futaba, or JR, or whomever would ignore problems and we poor modelers would suffer the consequences. There might be utility in the idea of people becoming aware of the potential problem, but the downside is that before they can even act people start complaining about poor design, poor service, etc. Oh well, like you said, a double edged sword.

All I see is :fencing:. I'd rather everyone had a and just got along. If someone says something you don't like (I understand your team futaba but part of that is being passive) don't put on the gloves and go defensive.

[xcellheli]

	Quote: Originally Posted by catman3070
	All I see is :fencing:. I'd rather everyone had a and just got along. If someone says something you don't like (I understand your team futaba but part of that is being passive) don't put on the gloves and go defensive.

I'm with catman3070. Lets just crack open a few Bud Lights in aluminum bottles and relax until Futaba gives us the solution. When done with the bottles we can turn them into canisters. It will help us pass the time.

[freya1]

Beat you to it, Just had 3 Coronas while changing my 2.4 RX to my PCM RX

[Simpleton]

That's telling them! Or something.

[Judge]

Post #193 makes exactly the case that I have been talking about. Oh well. We have no facts, only internet reports. But those are as good as facts for most people.

I wonder if anyone has taken a heat gun to their transmitter, or powerbox, or anything else. I sort of wonder how they hold up to extreme heat.

Also, I am waiting for somebody to try the same "test" with other types and brands of receivers or devices. It would be very interesting to know how other RC electronic devices/brands hold up to the heat gun test.

[grayuk]

	Quote: Originally Posted by crhammond
	Just for fun I took a 5014 PCM Rx and started to "cook it" with my heat gun. Now there is no link light on PCM... so I hooked up 1 single servo. I got that case as hot as I dared (240f - thats past boiling point right?) The servo still moved fine after 2 mins of super heating - the case was hot enough that touching it would burn your hand (not much but you would for sure feel it.) I have been doing my testing on Rx's outside the airplane with no servo plugged in at all. Just a 4-cell pack (around 5 to 5.2v nominal.) I did a 607 Rx - this time I kept the heat gun far back and heated slowly. It took quite a while but eventually it went red too. And it stayed red until the case was barely warm to the touch. This one went off at a much lower temperature - the case was only around 130f. I measured my cases on Monday in the plane after sitting in the sun for 10 or 15 mins. It was maybe 70f outside and the cases were at 121f. When the red light comes on you can CLEARLY hear something go "click" in the Rx and the same when it comes back to green (on the 6014.) On the 607 I didn't hear anything. Now I am a little worried. I will for sure be putting a cover over my canopy from now on though and I will keep an eye on things with my temp gun in case I am wrong. With air moving through the fuse the Rx should stay cooler - but letting it sit in the sun seems like a big risk. Maybe something as simple as a white case that reflects heat vs. the black heat absorbing case would be better in a hot climate? Gray - you fly jets right? How warm does it get inside the fuse? Have you ever seen any failsafes having the Rx mounted inside the fuse? I find it odd that an Rx burried inside a jet fuse would be okay and yet on my planes I seem to need to get the antennas up into the canopy... If I could put the Rx's away from the open canopy I know they would stay a lot cooler.

Yep, I fly jets and aerobatic models.
I have had no heat issues but to be fair…I live in England and we don’t get that many really hot days.

Thanks for the test on a standard rx, that tells us that it is definitely only the 2.4 rx that is ‘giving up’ at t a lower temp.

My RX in my Hawk sits under the canopy but down below the full depth detail.

I have no RX sitting under a large canopy directly.

To the best of my knowledge we have no reported issues else where in the world apart from the USA in the hotter climates.

Jets may not suffer the problem, (depending on installation) because we have a turbine sucking a lot of air from everywhere and it may cause more air movement in the fus than you are getting.

I have also done extensive testing with carbon, metal and fuel. None of these proved be a significant blocker of the signal.
The tests included placing an rx inside a metal tailpipe, inside a carbon fuselage. I got little or no deterioration of ground range.

I have tried to enclose a picture of my Hawk install.

Paul

Just found this interesting thread.
http://www.flyinggiants.com/forums/f...ansmitter.html

[RH1N0]

I notice there are a few posts suggesting that the Rx is more susceptible to failure when mounted under the canopy. The current assumption is that this is due to extra heating but there may be another factor - the direct sunlight itself!

Many micro SMD voltage regulator data sheets have warnings against exposure to direct sunlight such as this text from a typical National Semiconductor chip:

Exposing the micro SMD device to direct sunlight will cause
misoperation of the device. Light sources such as Halogen
lamps can effect electrical performance if brought near to the
device. The wavelengths which have most detrimental effect
are reds and infra-reds, which means that the fluorescent
lighting used inside most buildings has very little effect on
performance.

The FAAST RX's look as though they have a semi transparent case which may not provide a great deal of IR protection. So perhaps the IR exposure is affecting the REG or maybe even de-rating it's thermal protection specs.

Note that this is just a suggestion and only intended as food for thought for those who are doing some testing. Good luck