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Thread: ELT Placement

  1. #31
    Senior Member Andy's Avatar
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    Default Re: ELT Placement

    Quote Originally Posted by stautz View Post
    How can I tell what GPS data format is programmed into the ELT?
    I see no method defined in the installation manual. It appears to be programmed at the factory with no way for the end user to inspect what was programmed.

    Who provided the ELT? If provided by CubCrafters I suggest you ask kit support what configuration they order.

    "G. ELT Programming NOTE: Programming is performed by customer if so equipped or through a programming sheet supplied to ACR Electronics, Inc. with an ELT order. For information on ELT programmers and training, please contact ACR Electronics, Inc."

    H. RS-232 Acceptable Nav Data
    1) NMEA 0183 baud rate is 4800.
    2) Aviation protocol baud rate is 9600.
    3) Programing of the ELT 345 will determine the input of 4800 baud NMEA navigation data or 9600 baud Aviation protocol navigation data.
    4) The ELT 345 will parse GGA, GLL and RMC simultaneously. Output configurations that write GGA, GLL or RMC sentences at 4800 baud as specified in NMEA 0183 will be suitable.
    5) GPGGA is recommended if available.

    What GDU 465 output data formats have you attempted?

  2. #32
    Senior Member David H's Avatar
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    Default Re: ELT Placement

    Steve,
    If you contact Artex with your model and serial number they should be able to tell you how it was initially programmed from the factory.
    David

  3. #33
    Senior Member Andy's Avatar
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    Default Re: ELT Placement

    Have you configured the GDU RS-232 port to give an appropriate serial data output?

    See G3X installation manual - 35.4.21 RS-232 Configuration Page.

  4. #34
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    Default Re: ELT Placement

    I called ARTEX and they told me that the 345's are programmed RS232 to 9600 baud by default. To get anything else, you need to request it from the distributer.

  5. #35
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    Default Re: ELT Placement

    Quote Originally Posted by stautz View Post
    I called ARTEX and they told me that the 345's are programmed RS232 to 9600 baud by default. To get anything else, you need to request it from the distributer.
    Did you ever get this to work? I'm stuck with the exact same issues.

  6. #36
    Senior Member jmorrical's Avatar
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    Default Re: ELT Placement

    Artex 345: Unknown to me was the fact that my Artex 345 came from Aircraft Spruce programed with a default 9600 baud. I recently had Dallas Avionics reconfigure the ELT to 4800 baud for $225. Everything I had read or heard in conversation said this would be required. I understand you can request 4800 or 9600 baud these days.

    When I got my ELT back the self tests showed two faults that I haven't addressed until today. Some of this may have been mentioned here

    Self test instructions are found on page 31-33 in the Artex 345 ELT manual. I previously wired pin #9 of the ELT to the free RS-232 TX 5 pin #41 of the GDU 645-G3X (P4602 connector) for the required GPS nav data. I solder sleeved the shield and attached it to the backshell of connector P4602 and to ground at the ELT. Iím not sure that grounding both ends of a shield is correct practice??

    Anyway todayís test showed two faults identified by 5 and 7 flashes & beeps.


    1. The first fault with 5 flashes says the ELT baud rate didnít match NAV baud rate. To fix this I entered Configuration on the G3X to the R-323 tab then to Port (pin)#5 and selected MNEA Out(4800 baud). That cleared the #5 fault indicating the ELT has good GPS data.
    2. The second fault with 7 flashes indicated my battery may need to be replaced. The battery wasn't that old so I was stumped. I had a thought. I opened the ELT, disconnecting the battery for a minute then reconnected it. There were two beeps when I connected the battery. I reassembled it, remounted and tested it. The battery fault had cleared. I guess it was like a reboot of the ELT that might have cleared an erroneous fault??? Or as Artex tech suggested perhaps the Dallas Avionics tech disconnected the battery and simply hadn't seated the connection well???


    There you go. I thought it was good to share my experience. One more thing off my list.
    Last edited by jmorrical; 08-09-2021 at 10:00 AM.
    Jim Morrical

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