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  1. #1
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    Question Where does the Antenna wire attach

    So I recently acquired a Revo 3.3. Came with a 2239 transmitter. The Short stubby antenna had pulled out during transit and I am having the hardest time finding where it was soldered onto the board at. Can someone help me out here? Doesn't seem to have any damage to the black wire attached still to the antenna I just don't know where to put it back at.

  2. #2
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    There would be two spots that the antenna needs to be soldered to as the antenna wire is actually a coaxial.
    If I had one, I would split it and take some pictures for you...
    Whatever it is I just said... I could be wrong.

  3. #3
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    If I post a couple photos would that help?

  4. #4
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    Absolutely!
    Whatever it is I just said... I could be wrong.

  5. #5
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  6. #6
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    I thought you were talking about the Rx... oops!!
    I have circled in red where the antenna plugs into above.

    If your antenna no longer has the plug, you are going to need a new one...
    http://buy.traxxas.com/product_info....oducts_id=4831
    Last edited by Jimmie Neutron; 10-31-2012 at 10:13 PM.
    Whatever it is I just said... I could be wrong.

  7. #7
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    Is it suppose to have some sort of special plug? This is what my wire looks like.



    or will just soldering it to that spot work?

  8. #8
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    Here is what is supposed to be there:


    Since it is a rather cheap part, I advise to simply get another.
    Chances of the radio functioning as it should after modifications are pretty slim.
    I have seen expert solderers only have 20 foot of range after messing with the antennas of radios.

    The center of the wire would need to be connected to the very center of the socket without touching the outside of the socket and the outside wires would need to be gathered together and soldered to the outside of the socket without touching anything else.
    Remember, this is a coaxial wire, not a solid or stranded wire!
    Whatever it is I just said... I could be wrong.

  9. #9
    RC Turnbuckle Jr. humayrayakongkinaon's Avatar
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    i was thinking the same thing too until picture showed up. it happened to me when my son pulled the antenna off and i looked at the end, it looks like it came off to something round so i just followed it.
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  10. #10
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    Can i get that straight from Traxxas?

  11. #11
    RC Turnbuckle Jr. humayrayakongkinaon's Avatar
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    Quote Originally Posted by SVT_Tactical View Post
    Is it suppose to have some sort of special plug? This is what my wire looks like.



    or will just soldering it to that spot work?
    looks like your end is missing, you need to buy the replacement antenna.
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  12. #12
    RC Turnbuckle Jr. humayrayakongkinaon's Avatar
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    Quote Originally Posted by SVT_Tactical View Post
    Can i get that straight from Traxxas?
    i see them on ebay too.
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  13. #13
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    Quote Originally Posted by SVT_Tactical View Post
    Can i get that straight from Traxxas?
    Yes, you can.
    Other places have them as well.
    Last time I needed some I bought them from eBay.

    PN:tra2237
    Whatever it is I just said... I could be wrong.

  14. #14
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    Thanks guys. I really didn't expect to get such awesome and quick advise. I'm new to RC and trying to learn. I'll definatly be sticking around these forums to learn more. Thanks for the special attention Jimmie!

  15. #15
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    Anytime I can help, I will!
    Don't drive it until you get it fixed... torture, I know, but you do NOT want that beast to run away!!
    Whatever it is I just said... I could be wrong.

  16. #16
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    Yeah I had to put on a few parts already and it had been stored for a while with nitro in it. I cleaned it all up and new glow plug and blue plug wire. It cranked right up with just the little bit left in the lines I guess. Had to install a new carb as the old one had a stripped air/fuel adjustment screw too. I'll check with a local shop here tomorrow and see if they have it, if not looks like it won't take but a few days to get one off ebay for less than $7 too!

  17. #17
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    Sounds like a plan!
    Whatever it is I just said... I could be wrong.

  18. #18
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    You can get IPEX connectors and solder it up, it would work no problem.

    That picture of the wire shows TWO parts, one is the tiny wire inside (signal wire), the other is the shield. You would solder the signal wire to the middle, and the shield to the outside.

    Look here:



    You can see on the picture on the top half shows how the wire is just soldered to a board - signal and ground wired side by side, but not touching. If they TOUCH, it will not transmit very far at all. (or receive very well depending on TX or RX)

    On the BOTTOM half is shown the ipex male and female. You could simply solder the connector to ground and signal on the radio, and then plug an ipex in to it!

    *cheers

  19. #19
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    Wanted to update. Got the new antenna Saturday and it attached very easily. I was out running in no time. Range seems to be around the 125-150 yard mark almost with fresh batteries, this see about right?

  20. #20
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    I'd say that is about right.
    Whatever it is I just said... I could be wrong.

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