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TM7 WiFi and GSM external antenna mod

For the ones with wifi problems on the TM7; this is a photo manual that a good friend of mine made. I will try to translate te text on the pics as good as possible. The reason for the bad signal is simple: inside the antenna is simply not connected.

1 – Remove the tape and plastics. Afterwards you will see the whole motherboard.

2 – Plastic and tape that needs to be removed.

3 – Be careful when removing the tape. The connector can be damaged easily.

4 – Motherboard ready to tweak.

5 – GSM, Wifi and GPS (connected to external)

6 – End of antenna and connector.

7 – You can clearly see the connector that we will connect to the GSM or wifi connector on the board.

8 – The TM7 does seem to have an internal GSM antenna. The connection on the outside is not connected to GSM.

9 – The TM7 does seem to have an internal wifi antenna. De connector on the outside is clearly not meant for wifi.

10 – You have 2 possibilities now:
1- External to GSM
2-External to wifi

Depending on how you will use the device you will have to choose on what to connect.

11 – In this case we chose to connect wifi. You can easily change this later on.

Credits: This photo report has been made by Marcel Goedemans and translated by Filip Everaert

2 thoughts on “TM7 WiFi and GSM external antenna mod”

  1. Jerry

    I am a little confused … The TM7 has an external antenna connector marked GSM.
    Is this connected to anything ? The article suggests that the internal GSM antenna is all there is .Can anyone enlighten me ?

    I have bought an external aerial but in truth it doesn’t really perform any better wether it is connected or not …?

    Jerry. G0CUO

    1. Manu - ON7FQ

      Jerry,

      The coax cable for GSM in the TM-7 is standard NOT connected.
      Since there is indeed an internal antenna present, they do not have the coax connected on the motherboard.
      Must of the people use the TM-7 without a external antenna.
      Just follow the instructions above but be very careful, the connection on the board can easily be destroyed.
      After these steps, your TM-7 will get perfect reception with a external antenne.
      Be aware that after this modification you will always have to use an external antenna otherwise you have a chance of damaging the board.

      Manu – ON7FQ

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