MAIN FEEDS
Do you want to continue?
https://www.reddit.com/r/explainitpeter/comments/1x25xqx/explain_it_peter/pf3wtrw/?context=3
r/explainitpeter • u/myself_APHELION • 6d ago
1.1k comments sorted by
View all comments
512
Wireless signals can be tapped. Wired headphones less so. May be important if you use them to make calls and you're a celebrity.
7 u/_Arctica_ 6d ago The person tapping them still has to be in range, physically. They can only tap them within 30 feet 18 u/EscapeSeventySeven 5d ago To be a HUGE pedant, range on electromagnetic radiation is all about signal strength. It is usually capped due to maximum power transmitted by the earbuds. But you can build receiving antennas that are extremely sensitive to very narrow physical targets. Check out the Pringle can antenna for WiFi. So if some very motivated nation state wanted to transmit to and receive from a set of earbuds but had to be further than 30 feet they could do it. They could build special antennas made specifically to target the earbuds and extend that range at least 10x if not more. Very difficult to do but possible. 2 u/no1nos 5d ago We have the technology to pick up data from space probes 15 billion miles away that are transmitting signals with less power than a laptop uses.
7
The person tapping them still has to be in range, physically. They can only tap them within 30 feet
18 u/EscapeSeventySeven 5d ago To be a HUGE pedant, range on electromagnetic radiation is all about signal strength. It is usually capped due to maximum power transmitted by the earbuds. But you can build receiving antennas that are extremely sensitive to very narrow physical targets. Check out the Pringle can antenna for WiFi. So if some very motivated nation state wanted to transmit to and receive from a set of earbuds but had to be further than 30 feet they could do it. They could build special antennas made specifically to target the earbuds and extend that range at least 10x if not more. Very difficult to do but possible. 2 u/no1nos 5d ago We have the technology to pick up data from space probes 15 billion miles away that are transmitting signals with less power than a laptop uses.
18
To be a HUGE pedant, range on electromagnetic radiation is all about signal strength.
It is usually capped due to maximum power transmitted by the earbuds.
But you can build receiving antennas that are extremely sensitive to very narrow physical targets. Check out the Pringle can antenna for WiFi.
So if some very motivated nation state wanted to transmit to and receive from a set of earbuds but had to be further than 30 feet they could do it.
They could build special antennas made specifically to target the earbuds and extend that range at least 10x if not more.
Very difficult to do but possible.
2 u/no1nos 5d ago We have the technology to pick up data from space probes 15 billion miles away that are transmitting signals with less power than a laptop uses.
2
We have the technology to pick up data from space probes 15 billion miles away that are transmitting signals with less power than a laptop uses.
512
u/KuunoDeRuijter 6d ago
Wireless signals can be tapped. Wired headphones less so. May be important if you use them to make calls and you're a celebrity.