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HomeAircraftHelicopterHelicopter Main Discussion › Mobile Phones at the Flying Field
04-05-2009 08:58 AM  9 years agoPost 21
mchammer

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California,USA

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^^^what radio was he using?

Peace Through Superior Firepower!!!

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04-05-2009 09:08 AM  9 years agoPost 22
TOSH

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UK.Peterborough

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14 years flying helis. All of them with a switched on phone in my pocket. Not one hit yet. l often fly on my own, no way would l do that without my mobile in my pocket.

Flybars. Who needs `em.

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04-05-2009 09:11 AM  9 years agoPost 23
mchammer

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California,USA

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I almost allways fly with mine on in my pocket as well.never a problem.

Peace Through Superior Firepower!!!

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04-05-2009 09:30 AM  9 years agoPost 24
TOSH

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UK.Peterborough

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Anyway, can anybody hold a phone to their ear and talk while they are flying with both hands on the transmitter sticks unless they have three hands?
YES. Seen Bob Johnston do it and still pull off his full routine.
The other issue here is the signal from your mobile phone to the transmitter, according to the British Model Flying Association this may wipe the memory in your transmitter!
Would you even read that mag if it wasn`t free?

Flybars. Who needs `em.

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04-05-2009 09:54 AM  9 years agoPost 25
mchammer

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California,USA

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Anyway, can anybody hold a phone to their ear and talk while they are flying with both hands on the transmitter sticks unless they have three hands?
I have done it a few times. It is not recomended procedure.

Never any glitches though.

Peace Through Superior Firepower!!!

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04-05-2009 10:55 AM  9 years agoPost 26
UK Helinut

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Gloucestershire

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And still everyone misunderstands the issues.
It has nothing to do with the frequency we fly on, not even 2.4ghz is immune, it is radiated interference produced by cell phones that (COULD) not will, affect the electronic components inside the transmitter.
Can enyone honestly say they have not heard the speackers of a radio making a strange sound when a cell phone contacts the cell? it is electrical energy pure and simple.
You may decide to just ignore the warnings, and never have an issue.
But if ever an accident happens and it is down to this issue, will you be able to live with your concience?

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04-05-2009 11:26 AM  9 years agoPost 27
charliedoane

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Branford, CT USA

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Your right on UK Helinut with regards to electrical energy. Has nothing to do with 2.4. The design and layout of the internal electronics of the device will make the difference. Now should they should ban cell phones from being used near any other electronic devices? Any and all emergency equipment? While visiting someone in the hospital? While in a car? While at work? The list could go on forever. While flying I try to leave my phone in the car and not because of interference but because of the distraction. It would take a very poorly designed radio and cell phone to cause any problems and it would have to be very close to each other to have any effect.

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04-05-2009 11:40 AM  9 years agoPost 28
Raptor Pilot

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Northern Ireland U.K

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And still everyone misunderstands the issues.
You are quiet right UK Helinut
It has happened to me and while everyone else choses to ignore/dismiss it it can still be a problem for some of us.
Can enyone honestly say they have not heard the speackers of a radio making a strange sound when a cell phone contacts the cell?
I hear it all the time when im close to a T.V ,computer or a hi-fi.
There is no denying it!

If it doesnt move and its meant too... use WD 40. If it moves and its not meant too...use duct tape!

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04-05-2009 05:45 PM  9 years agoPost 29
chopper_crazy

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Delphos, Ohio

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I have never had any problems with cell phones on flying fields. Our club does not have any rules like that.

It's a complex, costly, glow powered anti-gravity machine!

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04-05-2009 06:37 PM  9 years agoPost 30
Sillyness

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Little Rock AR

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If fly while talking on my phone, sending texts, and surfing facebook Kidding... I don't have a facebook account

I guess this could all be plausible. EMI is real and can do all sorts of strange things depending on harmonics. That's why it takes so long to get electronic equipment certified for full scale flight. There's almost no way to tell how emmisions will effect any given system. Emmisions from 2 devices on the same frequency can effect the same system differently.

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04-05-2009 06:50 PM  9 years agoPost 31
TaleGunner

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Deer Park WA

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Someone submit this to the MythBusters

I say myth Busted there is no REAL evidence that cell phones cause us problems

CRASH! GLUE! REPEAT!
Spectra-G, Ion X-2

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04-05-2009 07:04 PM  9 years agoPost 32
AirWolfRC

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42½ N, 83½ W

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All the problems I have heard involve a live cell phone establishing a call connection and within about one meter of the affected transmitter.

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04-05-2009 07:12 PM  9 years agoPost 33
fritzthecat

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Virginia Beach, VA

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Not necessarily.
A few years ago I did some tests. May still be in the archive here.
There are two issues with RC TX and cell phones: EEPROM corruption and induced EMI.
Futaba 7U, 8U and 9C radios had EEPROM memory that became corrupted if a cellphone was near (6in or less) the TX. This manifested itself with simple bit changes in the programming - reversed servos, turned off mixing etc.

Futaba and Multiplex TX with Synthesised modules (any freq) are prone to have the transmitted signal scrambled if a GSM phone (AT&T, Euro) receives a call within 3 feet of the synth module. CDMA phones (sprint, verizon) need to be within 2in for the interference to show.

The above two I was able to repeat at will with my 8U, 9C and 9Z.

Fritz


'Send Money, Women and Guns!'

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04-05-2009 07:20 PM  9 years agoPost 34
AirWolfRC

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42½ N, 83½ W

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Really ?

Sounds like what you are saying fits easily within my "one meter" parameter.

And outside of one meter is a NON-problem

So . . . . if you're Agent-86 and keep your phone in your shoe, you're ok

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04-05-2009 08:45 PM  9 years agoPost 35
whoamis

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san francisco, ca

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I dunno about this one... for sure a mobile phone taking in incoming call generates a lot of interference... If it can move your bluetooth mouse pointer around on your PC, why can't it munge up your radio internals or signal?

It should be easy enough to run some tests... set the heli up on the bench, power up, set mobile phone next to Tx, call it from your landline, see if anything happens at the servos.

There were people talking about a rash of "2.4 glitches" at a local field a while ago, right after the iPhone 3G came out. I'm also wondering if that device ever pokes around for wi-fi love or sets up a 3G data channel to do some stuff in the background ("push" stuff, not app stuff).

I'm sort of splitting the difference on this one until it's established. I leave my iphone on but toss it into my (metal) battery box, which I am generally standing near to.

I'm skeptical but not prepared to rule out the possibility of a problem.

jim

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04-06-2009 07:42 AM  9 years agoPost 36
mchammer

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California,USA

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So . . . . if you're Agent-86 and keep your phone in your shoe, you're ok
now thats funny!!!

Peace Through Superior Firepower!!!

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04-06-2009 09:30 AM  9 years agoPost 37
VooDooX

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San Francisco Bay Area CA, US (San Mateo)

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this week i was flying and my iphone (which makes computer screens and radios go crazy when it rings) rang while i was in the air it was in my pocket and nothing at all happened i was using spektrum 2.4ghz

Velocity 50 "99.9999999999999% of an atom is empty space." also 01001000 01001001

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04-06-2009 12:44 PM  9 years agoPost 38
lesodell3

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albion michigan

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i have a alltel razer and have had trouble with glitch with my phone in my shirt pocket so now i dont have it in my pocket and that was with 2.4 and 72

aah words to live by. "A side note, vigilante behaviour will be squelched!"

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HomeAircraftHelicopterHelicopter Main Discussion › Mobile Phones at the Flying Field
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