Notch_tiny 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 433 MHz signals - typically 39dB (over 6db more than Notch_easy) !!!
It's great small thing to improove quality of signals that works on other freqencies.
Principle of this filter is to reject (block) desired frequency (in this case 433) that will interferee with their harmonics.
Each filter is individually tuned and tested on VNA for choosed frequency.
Happy flying and long ranges :)
blocking frequency: 433mhz with loss ~38dB
loss at 868: about 0.2-0.3 dB
quantity: 1 piece of notch filter.