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RC Transmitter and Receiver communication

Discussion in 'General Electronics Discussion' started by Jean Perret, May 12, 2014.

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  1. Jean Perret

    Jean Perret

    37
    0
    Jan 3, 2013
    Hi folks,

    We have an RC club at school and we are trying to undertsand the problem we have on a Radioshack rc Jeep http://support.radioshack.com/produc...20Toys&Reuse=N
    and as we don't have the correct transmitter so we tried diffferent TX all 49mhz as this car is a 49mhz only one TX kind of worked but the jeeps moves randomly very slowly and faster in rear motion then forward, sometimes it moves faster then other times etc... Battery is good and fully tested and charged.
    My question is, would it be possible that the TX not being the exact transmitter would partially work or is it the car's mainboard???

    Thanks!!
     
  2. Harald Kapp

    Harald Kapp Moderator Moderator

    10,609
    2,370
    Nov 17, 2011
    Jean,
    the link you posted doesn't work.

    Random movement of the car is in my experience a symptom of transmitter and receiver being not in sync. There are a few possibilities:
    • wrong frequency (misalinment between receiver and transmitter)
    • defect in the transmitter
    • defect in the receiver
    If you hada second transmitter, you could check whether the transmitter is the culprit by swapping transmitters.
    Likewise you could do with a second receiver.

    Provided you have the correct quarzt. The quarzes in transmitter and receiver need to be tuned to the same frequency. Cheap crystals can have tolerances that make it impossible to synchronize receiver and transmitter.
     
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