![]() The FCC doesn’t want you using the free and limited Amateur bandwidth to conduct your business. Anything that is a pecuniary interest to the amateur or the amateur’s employer is banned. I’m speaking only of US rules as I know very little about the rules elsewhere.Īds aren’t necessarily banned. Posted in Radio Hacks Tagged radio, shortwave, shortwave broadcasts Post navigation If you know Morse code, you might even get a warning about your impending rescue. After all, history is full of stories of secret radio receivers tuned to the BBC or some other radio outlet, or examples of secret messages in broadcasts, such as Radio Swan. Some forward error correction codes and perhaps encryption could be a way to have a data lifeline to those forbidden from free access to the Internet. On the face of it, this might seem to be just a geeky hobby, but we can’t help but think that in places where data is censored, radio might be a viable way to send information. If you don’t have sufficient radio gear, you can probably borrow some from the Internet. To play along, you’ll need a decoder like Fldigi or TIVAR. WINB in Pennsylvania and WRMI Florida both have shows that include interspersed data. ![]() You can also find step-by-step instructions. You can find out more at the Swradiogram website. Several commercial shortwave broadcasters are sending encoded data including images and even entire web pages. However, now everyone can get in on the game thanks to the cheap availability of software-defined radio. Hams have lots of techniques for doing that and - not so long ago - even most data transmissions were over phone lines. If you are a ham radio operator, the idea of sending pictures and data over voice channels is nothing new. ![]()
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