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Discussion in 'General Electronics Discussion' started by eaks77, Jan 15, 2014.

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  1. eaks77

    eaks77

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    Jan 15, 2014
    Hey Everyone,

    I'm completely new to this forum, but looking forward to being apart of this community.

    I'm no electrician, but i'm knowledgeable.... Somewhat haha.

    Here's my project/task: I have a garage door opener that's used to open/close a secure gate. We use this garage door opener from a office which is roughly 50' away. This system works 40% of the time as we sit.... Most of the time we have to get up and walk towards the gate. Sometimes the difference of 5' could make the difference. This clicker is probably used 60+ times a day. My irrational side wants to connect a car battery to this thing and boost it's signal! Haha so what can I do? I've attached some pictures. I have no problem with soldering and playing around with this thing..... maybe there's something else I can buy with a better signal... Suggestions?

    Thanks
     

    Attached Files:

    Last edited: Jan 15, 2014
  2. Harald Kapp

    Harald Kapp Moderator Moderator

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    Nov 17, 2011
    Sorry, no attachments.
    Please try again.
     
  3. eaks77

    eaks77

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    Jan 15, 2014
    Sorry, i was having some difficulties with attachements. They're now attached... :)
     
  4. davenn

    davenn Moderator

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    Sep 5, 2009
    Hi ya eakas
    welcome to the forums

    putting a car battery onto it isnt going to make ny difference IF it is already running off a 12V power supply

    IF it runs off a lower voltage supply, say 9V, then putting a 12V supply onto it is likely to just kill the unit
    The only real help would be to try a better antenna on the receiver unit down at the gate so that it gets more signal from the transmitter. This would improve operation reliability.

    do you know the frequency the unit operates on ?
    433MHz would be the most common

    Dave
     
  5. davenn

    davenn Moderator

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    Sep 5, 2009
    OK I assume that,s the transmitter unit in the pix

    now how about pix of the receiver unit so we can see where hooking a better antenna onto would help :)
    Thats more important

    Dave
     
  6. eaks77

    eaks77

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    Jan 15, 2014
    Hey Davenn,

    Your absolutely right, a car battery wouldn't do anything! It would have been irational ;)

    I'll have to take a look at the receiver again, but I believe we made some changes, but no improvements were noticed. Nothing can be done to the actualy clicker?

    Thanks
     
  7. eaks77

    eaks77

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    Jan 15, 2014
    Yes, the pics are of the transmitter. I'll get pics of the receiver tomorrow :)
     
  8. duke37

    duke37

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    Jan 9, 2011
    You could try a parabola made from cooking foil to focus the radiation in the direction required. If this works, you could make a Yagi with the receiver placed where the driven element would normally be.
     
  9. eaks77

    eaks77

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    Jan 15, 2014
    Based on the pictures, where is the antenna part? Could I not just solder or add a piece of wire to the antennae to slightly improve its effectiveness?
     
  10. jcurrie

    jcurrie

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    Feb 22, 2011
    a dorji ASK module might be the anwser.
    jc
     
  11. eaks77

    eaks77

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    Jan 15, 2014
    I'm going to attach some new pictures of another clicker. I can play with either one of these. My first question is where is the transmitter.... which i'm assuming I'll replace with maybe a Dorji ASK?

    UPDATE: the clicker attached is much weaker than the other one. It hardly works... not sure its a good unit to play with.
     

    Attached Files:

    Last edited: Jan 15, 2014
  12. davenn

    davenn Moderator

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    still waiting for the needed pics !! ;)


    you have to remember these garage door openers are only designed to work over ~10 metres ... ~30 ft the TX power level is VERY low just a few milliWatts

    if you need the transmitter to be portable then adding the antenna to the receiver is even more important

    Dave
     
  13. eaks77

    eaks77

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    Jan 15, 2014
    Hmm from my end it shows the pics are attached on the message :s

    So... attaching a wire or anything to the transmitter wouldn't do anything... you feel playing with the receiver is probably a better solution? I don't think I have much flexibility with the receiver as it's attached to a gate.

    Is there something out there I could replace these clickers with... a more powerful gate clicker? Or maybe a repeater.. .something to extend that signal strength.
     
    Last edited: Jan 15, 2014
  14. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    Yes, but your editing of the message will not result in people posting on the thread getting a message informing them of activity on the thread.
     
  15. davenn

    davenn Moderator

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    Sep 5, 2009
    No, you just reposted more pics of the transmitter

    you didnt post what I asked for .... this is now the 3rd time ;)
    and you didnt answer my question


    Dave
     
  16. eaks77

    eaks77

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    Jan 15, 2014
    Hey Dave,

    The pictures posted are of two different transmitters... as i'm hoping there's something I can do to it, to improve performance.

    I do not know the frequency.

    I will get pictures of the receiver asap. It's a little difficult as I work evening.
     
  17. eaks77

    eaks77

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    Jan 15, 2014
    Please see pics of motor box and receiver antennae. That's all the pics I could get at this time.
     

    Attached Files:

  18. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    Maybe straightening out the antenna could help. I'm pretty sure it shouldn't be bent like that.
     
  19. eaks77

    eaks77

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    Jan 15, 2014
    Hey Again,

    I took a good look at the antennae. It looks like its supposed to be bent :s Is they another antennae I could try? The connection looks like a coaxial cable.... like tv antennae style. If that sounds right.
     
  20. jpanhalt

    jpanhalt

    426
    4
    Nov 12, 2013
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