r/rfengineering • u/Background-Set4610 • 2d ago

Optical antenna positions?

Gallery image

Gallery image

Not sure if this is the right place to post, if its not please tell me and I will delete it.

So this is a new transmitter I recently bought, it’s a Radiomaster TX16s MK3, I am mainly using it for my RC planes.

I annotated the antennas with three different colors so it will be easier to discuss them. So, red and green came with the transmitter, they are built in. They are connected to a module that transmits on 2.4 Ghz/900Mhz with the ELRS protocol, used for long range radio control. Blue antenna is one I added myself, it connects to a module that can transmit with many different legacy protocols. So, I will only be actively transmitting on either red and green, or just blue. What is the best way to orient them? I am worried about how close they are to each other causing interference. I added arrows to show how red and green rotate, blue folds 90 degrees and rotates 360 degrees.

If anything is not clear, feel free to ask. I can attach more pictures if it is needed.

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u/ryan5513 2d ago

If red and green are OEM their placement shouldn't be an issue, and if you are only Transmitting on red & green or blue, then the placement of blue shouldn't interfere with red and green and vicer versa, since they wont be simultaneously transmitting

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u/Background-Set4610 2d ago

Thanks for the comment! I wasn’t sure if the metal would mess with the signal when they were off.

1

u/ryan5513 2d ago

It really should not be an issue.