Tiny_Notch filter is improoved version of notch filter.
It's smaller and lighter and has better loss at desired frequency (868 or 900 or 915 MHz).
It blocks 868/900/915 MHz signals - typically 38dB.
It's great small thing to improove video quality (1.2Ghz) when you are using 868MHz RC link (Frsky R9 or TBS crossfire).
Principle of this filter is to reject (block) desired frequency (in this case 868/900/915) that will impact on quality of your video (1.2ghz).
Use for this filter is very simple, just mount it between video RX (receiver) and antenna.
Each filter is individually tuned and tested on VNA for choosed frequency.
Happy flying and long ranges :)
blocking frequency: 868 or 900 or 915 with loss ~38dB
loss at 1280: about 0.2-0.3 dB
quantity: 1 piece of notch filter.