Moja radio stanica

https://playvalorant.com/en-us/

Simple one:

Long-range version 2-5km:

 http://www.zpag.net/Electroniques/Radio2/25_km_long_range_fm_transmitter.html

Mini fast version 1km:

http://electronics-diy.com/electronic_schematic.php?id=1034

Arduino powered FM receiver:

https://www.instructables.com/Make-Your-Own-FM-Radio/

Tiny and simple one:

https://www.electroschematics.com/tiny-fm-radio/

https://www.pinterest.com/pin/747738344377943287/

https://download.liveslak.org/

https://blogs.embarcadero.com/5-powerful-cryptography-libraries-to-enhance-your-apps-security/

https://blogs.embarcadero.com/flexible-enterprise-grade-tusers-security-component-for-vcl-on-windows/

https://blogs.embarcadero.com/the-5-best-reasons-why-security-first-is-a-good-idea/

Fig. 2 - Mini Transmissor de FM 88 - 108 Mhz com BC548

 A antena é um pedaço de fio rígido com comprimento de 10 centímetro, soldado no centro da bobina como mostrado na figura 2. A bobina é montada com 8 voltas de fio de 0.5mm com o diâmetro de 6mm.

https://www.fvml.com.br/2019/11/mini-transmissor-de-fm-88-108-mhz-com.html