Jeti duplex T12FG

I installed the Jeti TU module in my transmitter. The transplant went well. My setup is the following: I have a double switch (with lock) on the + and PPM signal while the - is always connected.



The soldering to do is:
  • the - on the pin 2 of the back of the trainer plug
  • The PPM signal coming from the double switch on the pin 1 of the back of the trainer plug
  • The + signal coming from the double switch on the pin 5 of the back of the trainer plug
Despite the user manual is mentioning that the + must be soldered on the pin 6, I did some measure on my old FF9 and sicovered that the difference between the pin 5 and 6 is that 6 is always ON when 5 is ON only when the radio is powered on.



I built a T with plastique that I fixed in the transmitter case with double face tape. Then the module is also double taped at the top of the T.

Now let have a look on how it works:

  1. switch in position OFF, transmitter RF OFF. No transmission at all in 2.4 Ghz thanks to the Jeti TU module.
  2. switch in position OFF, transmitter ON AIR. The T12 transmits in the band of the RF module (40, 42 or 35 Mgz)
  3. switch in position ON, transmitter RF OFF. The T12 transmits in 2.4 Ghz thanks to the Jeti TU module.
  4. switch in position ON, transmitter ON AIR. The T12 transmits in 2.4 Ghz thanks to the Jeti TU module, but also in the band of the RF module (40, 42 or 35 Mgz). This is useless, but good to know for security reason (for others).





You will find more information on my picasa album: T12FG Jeti Duplex


Comments

  1. Hi Pierre,

    I made almost similar conversion to my mc-22s. It is more simple, because there is ready made modul & switch set available, but the idea is the same.

    Anyway, there is some uncertainty, if this setu is fully legal (or not). basically fiddling with tx is not legal in EU... We try to get certifications for it, this is important for insurance coverage in competitions.

    Any comments? Have you discussed about this in France?

    BR
    Tuomo

    F3J Finland
    http://f3j-fin.blogspot.com/

    ReplyDelete
    Replies
    1. Hello,
      I beg you, as plugged switch Tx modules?
      Thank you Bob

      Delete
  2. Photo cable connections from the duplex on board Futaba? What is involved in the switch? Can not see how it spojené.Nějaké diagram for connectors?
    Thank you

    ReplyDelete

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