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2.4 Ghz Spread Spectrum Technology Discuss Spektrum, Futaba FASST, and all of the exciting 2.4 transmitter/receiver technology here!

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Old 05-04-2008, 09:42 AM   #277 (permalink)
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Default Re: Problems!! 14MZ 2.4 R6014FS

Quote: Originally Posted by Kiwi
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. . <snip>. . I mean as an example you dont leave your dog inside a closed car at the supermarket on a 110 F day. If you do your dogs dead. But then you dont blame the car manufacturer for a bad car design that killed your dog.. . .<snip>. .
.
.
I can see the headline now:

Modeler arrested for animal cruelty - Caught chasing dog around back yard with heat gun and laser temp probe . . .
.
.
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Old 05-04-2008, 10:09 AM   #278 (permalink)
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Default Re: Problems!! 14MZ 2.4 R6014FS

It is Golden week in Japan right now, and most people are off for the whole week.
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Old 05-04-2008, 10:14 AM   #279 (permalink)
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Default Re: Problems!! 14MZ 2.4 R6014FS

Quote: Originally Posted by Jurgen Heilig
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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
Did some temperature checks today. When I went for lunch, I left the Infrared-Thermometer in the glove compartment and it showed Error, beacause it got warmer than 40°C.

So I took it out and parked the car at the same location as yesterday. Air Temperature approx. 22°C. After 1.5 hours parked in the sun, the metallic grey paint of the car showed approx. 48°C, my blue jacket on the back seat showed 67°C and the dashboard was blistering 75°C hot.

Advise: Don't leave any temperature sensitive equipment in the car or baking in the sun.

Jürgen
 
Old 05-04-2008, 10:19 AM   #280 (permalink)
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Default Re: Problems!! 14MZ 2.4 R6014FS

Quote: Originally Posted by Kiwi
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...
I think this is like the SPEKTRUM experience. They had a battle from the start with various issues all of which were overcome and today they are rock solid.
...
Rock solid? A Spektrum at 100mW EU power has only half the range of a Futaba FASST on the same output power.

Even the latest AR 6100 v1.6 (with brownout-fix) takes up to 16 (sixteen) seconds to re-establish the link to the tx, after it goes into Failsafe.

The AR6200, 7000 and higher re-connect almost instantly.

Jürgen
 
Old 05-04-2008, 10:53 AM   #281 (permalink)
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Default Re: Problems!! 14MZ 2.4 R6014FS

One thing that would help and Futaba may have this idea already is a type of Data Log like the Spektrum unit.
After spending the last two days trying figure out some problems with my friends Spektrum set-up, I could see how helpful a similar Futaba unit would be...
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Old 05-04-2008, 11:45 AM   #282 (permalink)
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Default Re: Problems!! 14MZ 2.4 R6014FS

Quote: Originally Posted by as722
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Has futaba released any bulletins on this matter yet or are they saying there is no problem ?
Albert
They have done neither. And apparently it is a big holiday week in Japan where mot people are off work. Not sure if Futaba canceled their holiday or not.

But again, Futaba is aware of the issue. Futaba is working on it, and they have not issued any advisory related to the heat issue.

And I guess I am a weenie. If I am in a position where it is so freaking hot out that I can overtemp my radio, well, I am generally inside with a cold one watching a game!!! Not a engineered solution, but my own personal operating procedure!!
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Last edited by Judge; 05-04-2008 at 03:34 PM.
 
Old 05-04-2008, 12:27 PM   #283 (permalink)
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Default Re: Problems!! 14MZ 2.4 R6014FS

Guess the new 10C 2.4 will have the same problem since they also use the same receiver.... I'll wait to see what happens before I replace my ole trusty 9C Super....
 
Old 05-04-2008, 12:42 PM   #284 (permalink)
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Default Re: Problems!! 14MZ 2.4 R6014FS

Quote: Originally Posted by Judge
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They have done neither. And apparently it is a big holiday week in Japan where mot people are off work. Not sure if Futaba canceled their holiday or not.

But again, Futaba is aware of the issue. Futaba is working on it, and they have not issued any advisory related to the heat issue.

And I guess I am a weenie. If I am in a position where it is so freaking hot out that I can overtemp my radio, well, I am generally inside with a cold one wathing a game!!! Not a engineered solution, but my own personal operating procedure!!
Judge

Are you an official representative of Futaba and spokesman?
 
Old 05-04-2008, 02:50 PM   #285 (permalink)
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Default Re: Problems!! 14MZ 2.4 R6014FS

Well it seems to get interesting if you look around and find the operational limits of most of the gadgets you use daily and some that you would call critical.

I'n not going to fill this post up with other similar item specs but my hunt using google on common brand products shows some very startling information.

Take our faithful iPhone for example.

Environmental requirements
Operating temperature: 32° to 95° F (0° to 35° C)
Nonoperating temperature: -4° to 113° F (-20° to 45° C)
Relative humidity: 5% to 95% noncondensing
Maximum operating altitude: 10,000 feet (3000 m)


Go have a look around at the other critical items you use with great faith every day. In fact it seems that if the FASST limit is 155 F then its actually a very sturdy piece of equipment and has a higher tolerance level than most other consumer electronics.

Now I'm not saying that good or bad for FASST but it does seem that it operates above the norm.

So could it possibly be that this operational issue sets a new level of acceptance for this consumer electronic device?? One that exceeds what was a totally acceptable standard before.!!!
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Old 05-04-2008, 03:08 PM   #286 (permalink)
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Default Re: Problems!! 14MZ 2.4 R6014FS

Quote: Originally Posted by Jurgen Heilig
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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
Good news - bad news. The problem I was having with my brand new AR6200 obviously is not temperature related. It happened again today. I had two flights before lunch - no problem - and when I went out again later in the afternoon, the rx would not connect to my tx.

When I brought the model in the shade of the club house, I could see the LED of the satellite rx blinking rapidly, but very dim. 15 minutes and suddenly everything was back to normal. I tried to duplicate the problem, put model and rx in the hot car, but the problem did not re-occur. I decided not to to take any risk.

At home, the problem was back, and I took a short video of the dim blinking LED. I also noticed, that I could not get the rx into bindung mode in this condition.

Finally I replaced the brand new AR6200 (made in China, came with my DX6i) with a separately bought AR6200 (made in Taiwan). I hate intermittent problems.

Jürgen
 
Old 05-04-2008, 03:32 PM   #287 (permalink)
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Default Re: Problems!! 14MZ 2.4 R6014FS

Quote: Originally Posted by Kiwi
View Post
Well it seems to get interesting if you look around and find the operational limits of most of the gadgets you use daily and some that you would call critical.

I'n not going to fill this post up with other similar item specs but my hunt using google on common brand products shows some very startling information.

Take our faithful iPhone for example.

Environmental requirements
Operating temperature: 32° to 95° F (0° to 35° C)
Nonoperating temperature: -4° to 113° F (-20° to 45° C)
Relative humidity: 5% to 95% noncondensing
Maximum operating altitude: 10,000 feet (3000 m)


Go have a look around at the other critical items you use with great faith every day. In fact it seems that if the FASST limit is 155 F then its actually a very sturdy piece of equipment and has a higher tolerance level than most other consumer electronics.

Now I'm not saying that good or bad for FASST but it does seem that it operates above the norm.

So could it possibly be that this operational issue sets a new level of acceptance for this consumer electronic device?? One that exceeds what was a totally acceptable standard before.!!!
At least they have a spec for the temperature! and they do not mention R/C aircraft.
 
Old 05-04-2008, 03:40 PM   #288 (permalink)
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Default Re: Problems!! 14MZ 2.4 R6014FS

Had a good day today with both Jets ambient temp 20C.
No problems at all.

I know that is not that hot, but it is fairly typical for England.

Normal max temp here on a hot summer day is around 25C to 30C so I feel we are OK here except for exceptional days.
I will still be ‘aware’ now of keeping the canopy shaded on those ‘hot’ days!
Paul

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Last edited by grayuk; 05-04-2008 at 04:16 PM.
 
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