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t18joe
 Post subject: Auto ELT Activation
PostPosted: Sun Jul 08, 2012 11:30 pm 
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Joined: Sun May 15, 2011 7:33 pm
Posts: 16
Location: USA
I just discovered my ELT (D&M) turns itself on if I remove my external cloth canopy (cotton table cloth) by sliding the cloth aft over the canopy down towards the tail in the hanger. WEIRD! I suspect since my ELT antenna is located on the shelf aft of the seats, a static charge is generated by sliding off the cloth activating the ELT. The ELT is mounted under this shelf. I heard the ELT signal in my shop radio and verified it by turn off the ELT. I did this process three times with the same results. I know it sounds strange but has anyone had a similar experience with EMI/EMC? NO, THERE WAS NO BEER EFFECT.

N633GG


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Rich Brazell
 Post subject: Re: Auto ELT Activation
PostPosted: Sun Jul 08, 2012 11:45 pm 
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Joined: Wed Oct 21, 2009 12:33 pm
Posts: 3108
Images: 64
Location: Jamul, CA (San Diego area)
Try moving the cover foward vs. aft . ;) Then have another beer ! If all else fails try another T-18 cover from a buddy !

RB


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t18joe
 Post subject: Re: Auto ELT Activation
PostPosted: Mon Jul 09, 2012 11:28 pm 
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Joined: Sun May 15, 2011 7:33 pm
Posts: 16
Location: USA
Thanks Rich, Ill try sliding the cover forward. I'll let you know!


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jrevens
 Post subject: Re: Auto ELT Activation
PostPosted: Mon Jul 16, 2012 11:58 pm 
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Joined: Thu Oct 22, 2009 10:13 pm
Posts: 789
Location: USA
t18joe wrote:
I just discovered my ELT (D&M) turns itself on if I remove my external cloth canopy (cotton table cloth) by sliding the cloth aft over the canopy down towards the tail in the hanger. WEIRD! I suspect since my ELT antenna is located on the shelf aft of the seats, a static charge is generated by sliding off the cloth activating the ELT. The ELT is mounted under this shelf. I heard the ELT signal in my shop radio and verified it by turn off the ELT. I did this process three times with the same results. I know it sounds strange but has anyone had a similar experience with EMI/EMC? NO, THERE WAS NO BEER EFFECT.

N633GG


I'm curious, Joe... what brand ELT is it?

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John Evens
Arvada, Colorado

T-18 N71JE (sold)
Kitfox 7 SS N27JE


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jrevens
 Post subject: Re: Auto ELT Activation
PostPosted: Tue Jul 17, 2012 11:36 am 
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Joined: Thu Oct 22, 2009 10:13 pm
Posts: 789
Location: USA
jrevens wrote:
t18joe wrote:
I just discovered my ELT (D&M) turns itself on if I N633GG


I'm curious, Joe... what brand ELT is it?



OK... guess I was blind. It's a D&M. I'm guessing that's Dorne & Margolin. Sorry for the stupid question.

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John Evens
Arvada, Colorado

T-18 N71JE (sold)
Kitfox 7 SS N27JE


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