Extreme low frequency jammer

How can I make such ELF jammer? It's legal in my country

Are you sure it’s legal , can’t see how that can be so ..... and what’s the project and why do you think an Arduino can do it .

I’ve no idea anyway , but I’d expect from a quick google it’s extremely difficult

Reous: How can I make such ELF jammer? It's legal in my country

Start with an audio amplifier that can cover the frequency of your project. If you are looking for an RF generator, use the audio connected to an antenna that is cut for the frequency of choice. It will radiate RF from the audio signal.

Paul

Reous:
How can I make such ELF jammer? It’s legal in my country

It’s unlikely to involve an Arduino.

I wouldn't touch this with a 10-metre cattle-prod.

Trying to interfere with communications with old submarines?

Some paranoid people want ELF jammers for...

Protection for Targeted Individuals. Protects from Psychotronic & ELF Electronic Harassment, Implants, Microwaves, Psychic Attacks, Remote Viewing, V2K, Mind Control

https://www.amazon.com/Protection-Individuals-Psychotronic-Electronic-QuWave/dp/B00SJHZWLS

:)

A Jacob’s Ladder made with a neon sign transformer produces respectable interference for low frequency radio.

ELF EMF Jammer

you're going to need an SSR driving a MOSFET to power that. don't try to run it off your Arduino 5V.

A Jacob's Ladder made with a neon sign transformer produces respectable interference for low frequency radio.

Gaussfest 2019

Scroll about three quarters down the page, there is a 3 phase Jacob's ladder with 3 pieces of copper tube sticking into the air. Watch the ammeters on the back wall, they are in the 3 phase supply. I think this beast was drawing something over 20kW.

That one should work.

DaveEvans: Some paranoid people want ELF jammers for... https://www.amazon.com/Protection-Individuals-Psychotronic-Electronic-QuWave/dp/B00SJHZWLS

:)

Whatever happened to the old school solution, tinfoil hats. Too bad how the youth of today must have a high tech solution.

The modern, higher tech equivalent of tin foil hats is https://shieldheadwear.com/.

For younger, attractive people of course. Men, note the boxer shorts that protect from electromagnetic radiation, and the sneakers that protect from wifi-induced toenail cancer.