Problems!! 14MZ 2.4 R6014FS

[Jurgen Heilig]

All Futaba needs to do, is to specify the max. operating temperature range of their products - like other RC equipment manufacturers do.

Most likely it would be -15°C … +55°C, or -20° ... +60°C (like early Simprop products)

Problem solved.

Jürgen

P.S.: As no other RC manufacturer will give higher limits, there is very little danger of losing customers.

[Jurgen Heilig]

Perhaps I should not have said anything?

Went flying with my AcroMaster - AR6200 Spektrum rx. Drove home to solder a connector to a new Hacker/Flightpower 3s2500 pack, charged the battery and went back to the flying field. Left the model in the car for the whole time. Outside temperature approx. 22°C, but full sun. Back at the flying field, the AR6200 would not link to the tx - went straight into Smart Failsafe. That has never happened before. Back at home I re-checked and everything was working fine. I am puzzled.

Jürgen

[preston blake]

Just read this thread from beginning to end, all 22 pages. Found useful info on about a half dozen posts. We need need to have a separate place for people to whine and another place for people who just want to get the facts. The internet is an amazing place

[grayuk]

	Quote: Originally Posted by Jurgen Heilig
	Perhaps I should not have said anything? Went flying with my AcroMaster - AR6200 Spektrum rx. Drove home to solder a connector to a new Hacker/Flightpower 3s2500 pack, charged the battery and went back to the flying field. Left the model in the car for the whole time. Outside temperature approx. 22°C, but full sun. Back at the flying field, the AR6200 would not link to the tx - went straight into Smart Failsafe. That has never happened before. Back at home I re-checked and everything was working fine. I am puzzled. Jürgen

Now that is odd!
That could explain some of the mystery lockouts and crashes on Spektrum!
A good friend of mine flys Spektrum in Austrailia where it gets very hot, i will mention it to him, see if he has had any issues.

Just left my RX 14 channel turned on for 30 minutes. I have to say it did not get warm really. Ambient temp was around 16 deg C.
The reason I mention it is I am sure that somewhere in this thread it was mentioned how hot the rx got even at ambient.
Mine was not even noticeably warm.
I am running 4.8 volts with 2 supply leads through 2 switches into the rx (one at each end of the bus). I have 10 channels connected.

Paul

[Jurgen Heilig]

	Quote: Originally Posted by grayuk
	... Just left my RX 14 channel turned on for 30 minutes. I have to say it did not get warm really. Ambient temp was around 16 deg C. ...

Hi Paul,

it should have warmed up by approx. 9°F or approx. 5°C, but then 21°C is not warm really.

Jürgen

[shannah]

If JR and Futaba want to send me systems, I'll be glad to test them in my temp chamber at work. In exchange for lab fees, I'll gladly accept the equipment as payment. I think a full up 14mz system and a full up 12X system would be good test subjects. That way we get real data, not just anecdotal information.

Seriously, I'm sure both companies (and Sanwa/Airtronics) have temperature tested their equipment. Back in the good old days I remember my Dad testing Heathkit radios in the freezing cold. He was VP of Engineering for Heath Company. They didn't have a temperature chamber so they suited up and flew on the coldest days they could find. Likewise, we spent many days at the flying field in the blazing heat.

Some of the data sheet info floating around on these pages is interesting, but is it really what they have in their equipment? Are they screening parts to higher levels? There are several choices for 2.4GHz parts that operate at 85c so I would think that if they felt higher temp operation was needed then they could go that way. Both JR and Futaba have been building receivers for a long, long time and they have tons of operating temperature data.

[Mokken]

	Quote: Originally Posted by shannah
	Seriously, I'm sure both companies (and Sanwa/Airtronics) have temperature tested their equipment. .

Don't look like they did much testing at all.

[Simpleton]

	Quote: Originally Posted by preston blake
	Just read this thread from beginning to end, all 22 pages. Found useful info on about a half dozen posts. We need need to have a separate place for people to whine and another place for people who just want to get the facts. The internet is an amazing place

Which column do think your post belongs?

[blkbird68]

	Quote:
	And what's with all the new folks in this thread? I've never seen more new faces making there very first post in a thread on FG before. I sense some alias games going on. So funny..

Mokken, your paranoid delusions are laughable. Take it someplace else.

	Quote:
	but it's new to R/C

wrong again, you could say it is new to our type of R/C, but it is not new to radio control applications.

[KIM]

is there a habu snake driver in the room

[Mode1Mike]

	Quote: Originally Posted by emessys
	Mike, That is what is called "Advertising".

This is what the Federal Trade Commission has to say to your smart answer

http://www.ftc.gov/bcp/conline/pubs/...s/ad-faqs.shtm

Frequently Asked Advertising Questions:A Guide for Small Business
GENERAL ADVERTISING POLICIES

What truth-in-advertising rules apply to advertisers?
Under the Federal Trade Commission Act:

* Advertising must be truthful and non-deceptive;
* Advertisers must have evidence to back up their claims; and
* Advertisements cannot be unfair.

Additional laws apply to ads for specialized products like consumer leases, credit, 900 telephone numbers, and products sold through mail order or telephone sales. And every state has consumer protection laws that govern ads running in that state.

What makes an advertisement deceptive?
According to the FTC's Deception Policy Statement, an ad is deceptive if it contains a statement - or omits information - that:

* Is likely to mislead consumers acting reasonably under the circumstances; and
* Is "material" - that is, important to a consumer's decision to buy or use the product.

What makes an advertisement unfair?
According to the Federal Trade Commission Act and the FTC's Unfairness Policy Statement, an ad or business practice is unfair if:

* it causes or is likely to cause substantial consumer injury which a consumer could not reasonably avoid; and
* it is not outweighed by the benefit to consumers.

How does the FTC determine if an ad is deceptive?
A typical inquiry follows these steps:

*

The FTC looks at the ad from the point of view of the "reasonable consumer" - the typical person looking at the ad. Rather than focusing on certain words, the FTC looks at the ad in context - words, phrases, and pictures -ÿto determine what it conveys to consumers.
*

The FTC looks at both "express" and "implied" claims. An express claim is literally made in the ad. For example, "ABC Mouthwash prevents colds" is an express claim that the product will prevent colds. An implied claim is one made indirectly or by inference. "ABC Mouthwash kills the germs that cause colds" contains an implied claim that the product will prevent colds. Although the ad doesn't literally say that the product prevents colds, it would be reasonable for a consumer to conclude from the statement "kills the germs that cause colds" that the product will prevent colds. Under the law, advertisers must have proof to back up express and implied claims that consumers take from an ad.
*

The FTC looks at what the ad does not say - that is, if the failure to include information leaves consumers with a misimpression about the product. For example, if a company advertised a collection of books, the ad would be deceptive if it did not disclose that consumers actually would receive abridged versions of the books.
*

The FTC looks at whether the claim would be "material" - that is, important to a consumer's decision to buy or use the product. Examples of material claims are representations about a product's performance, features, safety, price, or effectiveness.
* The FTC looks at whether the advertiser has sufficient evidence to support the claims in the ad. The law requires that advertisers have proof before the ad runs.

[crhammond]

I flew my 100cc Python today. Outside temp was 17c. I left the plane in the sun, Rx's are under the canopy. Rx's were monitored and the temp was steady around 30c (86f.) No issues as expected. Canopy off they got quite a bit hotter (the canopy is tinted.)

Kiwi - good idea on the styro to make some covers. I may try that out.