07-10-2015, 05:13
I really would like to help, but I don't know what to say. Despite the same symptom be happening with two different TX units, I'm still inclined to a problem with the Transmitter units. Hope I'm wrong!
Do you have any picture of the antenna connection?
Which antenna you fitted? If just a wire or a helicoidal antenna, the following note does not apply:
The antenna ground should be connected only to the GND signal on the module, never to any other GND point in the board, also never make the GND of the TX module comum with other GND point of the board. Due to the way I'm supplying power to the module, doing this will prematurely destroy the transmitter module.
Here is a an example for TX v2.50 boards:
![[Image: FS1000A_Antenna.jpg]](http://www.meteocercal.info/forum/images/01forum_img/FS1000A_Antenna.jpg)
![[Image: WD_RF_Ant.jpg]](http://www.meteocercal.info/forum/images/01forum_img/WD_RF_Ant.jpg)
Do you have any picture of the antenna connection?
Which antenna you fitted? If just a wire or a helicoidal antenna, the following note does not apply:
The antenna ground should be connected only to the GND signal on the module, never to any other GND point in the board, also never make the GND of the TX module comum with other GND point of the board. Due to the way I'm supplying power to the module, doing this will prematurely destroy the transmitter module.
Here is a an example for TX v2.50 boards: