Thaimaan luolapelastus
Lähetetty: 12.07.2018 21:13
Lyhyt mielenkiintoinen artikkeli radioyhteyksistä kilometrejä pitkään luolaan.
>They used the "Heyphone", a voice radio designed by a UK radio ham, John Hey, G3TDZ, as
>open-source hardware specifically for cave rescues.
> It uses upper (single) sideband voice on 87 kilohertz "
http://www.southgatearc.org/news/2018/j ... rescue.htm
>They used the "Heyphone", a voice radio designed by a UK radio ham, John Hey, G3TDZ, as
>open-source hardware specifically for cave rescues.
> It uses upper (single) sideband voice on 87 kilohertz "
http://www.southgatearc.org/news/2018/j ... rescue.htm