Guys I need help with a module I bought.
I am a noob in rf. The module that I bought has The marking of YK 04.
I made several antenna for the receiver but none of them worked above 15 cm. The seller said that it will work well UpTo 50m.
Can anyone help me make a good antenna.
I will be very grateful.
Can you also tell me to use which wire (enamelled or not) and what length and shape. I will share 2 photos of the module and the previous antenna I have made.
For 433 MHz, 17 cm of straight wire works best. For 315 MHz, 23 cm.
With range that short, it seems likely that the TX and RX modules have mismatched frequency, and will never work well together.
Adafruit sells a similar setup, and they guarantee and actually support their products.
1 Like
This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.