VansAirForceForums  
Home > VansAirForceForums

- POSTING RULES
- Donate yearly (please).
- Advertise in here!

- Today's Posts | Insert Pics

  #1  
Old 09-01-2018, 06:35 PM
08FATBOY 08FATBOY is offline
 
Join Date: Mar 2013
Location: STRONGSVILLE OHIO
Posts: 23
Default GPS-ELT

I have a Synergy built E-LSA thats 8 months old with 91hrs. I removed the ACT406 ELT and returned for inspection as it's activated multiple times. After removal, my first flight 4 minutes after departure gps shut down message (position source 1 fail no adsb out gps lost) blank screen red x. After landind i called Dynon, turned on master gps map screen appeared, they took the time to have me check no conf changes, all good. Short flight today everything up and running but with timer set 3 minutes after departure gps failed again. Is it possible the removal of elt has anything to do with this failure?

Thanks Rod

Last edited by 08FATBOY : 09-01-2018 at 06:49 PM.
Reply With Quote
  #2  
Old 09-01-2018, 09:33 PM
Canadian_JOY Canadian_JOY is offline
 
Join Date: Aug 2007
Location: Ontario, Canada
Posts: 1,777
Default

Highly improbable since the GPS sends data to the ELT, never getting or expecting anything in return.
Reply With Quote
  #3  
Old 09-01-2018, 09:34 PM
Mich48041 Mich48041 is offline
 
Join Date: Apr 2008
Location: Riley TWP MI
Posts: 2,717
Default

Tthere is a very small coax that connects the GPS data to the ELT. Make sure the center of the coax is not shorted to the shield. And make sure the connector is not shorted to ground.
__________________
Joe Gores
RV-12 Flying
Reply With Quote
  #4  
Old 09-01-2018, 10:35 PM
Phantom30's Avatar
Phantom30 Phantom30 is offline
 
Join Date: Jul 2009
Location: Coeur d'Alene, ID/Casa Grande, AZ
Posts: 650
Default

Quote:
Originally Posted by Mich48041 View Post
Tthere is a very small coax that connects the GPS data to the ELT. Make sure the center of the coax is not shorted to the shield. And make sure the connector is not shorted to ground.
I would look at the “other” end of the connection too....something was causing the ELT to activate. They (the ELT are pretty bullet proof).
__________________
Ric Dickison
307 (CAB) Phantom
Search and Destroy (Can
Tho RVN)
Distinguished Flying Cross Society Member
CH-47 & UH-1H "Driver"
Rotax 9 Series Service IRMT

RV-12 Kit#729 "N312RD" is now a full functioning fun machine!! Thanks Van for fulfilling my dream😎
2018 Dues Paid
Reply With Quote
  #5  
Old 09-01-2018, 10:58 PM
John-G John-G is offline
 
Join Date: Jan 2012
Location: Northeast Ohio
Posts: 528
Default

Rod ... since you have removed the ELT for inspection ... as Joe has pointed out, make sure the removed connection is not causing the GPS position source wire run back to the ELT to become shorted.

In the past, there have been posts here in the forums about the ACK ELT being prone to unwanted activation from static ... such as cleaning with a rag and touching the antenna. ACK has advised those with the issue to install a static filter on the antenna's BNC connector in line with the coax cable. ACK has told others here that this can solve the unwanted activation issue, especially if it is caused by static from cleaning. My ACK ELT came with a static filter in the box so after reading some of the posts about the ELT going off while cleaning, I just decided to just go ahead and install the in-line filter as a preemptive strike (even though I have not had an unwanted activation from my ACK ELT).

Static may not be the issue with your ELT but something you should be aware of. ACK wouldn't be including a filter in the box if there wasn't a good reason for doing so.
__________________
John
www.dogaviation.com
RV-12 Wings, Empennage, Fuselage, Finishing, Avionics and Powerplant kits all completed
Now Flying!!

Dues paid until September 2019

Last edited by John-G : 09-02-2018 at 09:05 AM.
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -6. The time now is 11:50 PM.


The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.