Walkie Talkie / Radio / Telegraphy
Hi emma. Jan 8
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Keeping secrets out of the wrong hands warrants desperate measures—or maybe just sensical. If you have a secret, the best way to protect it is with a code—and the best way to transfer that secret message is via an electronic telegraph system.
How to build a Morse code telegraph
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Aircraft Band Receiver
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FM Transmitter Project Ideas FM Transmitter Project Ideas. FM transmitters are designed to broadcast a signal from the transmitting source or songs from an MP3 player... Simple FM Transmitter Projects A small FM transmitter can broadcast an MP3 player over your radio so everyone can hear it. mp3 player image by patrimonio...
How to Design an FM Transmitter
Back Story: My wife and I have some friends who moved across the country not too long ago. We've known them for a long time, and our kids are friends as well. I would like to investigate building a pair (or perhaps a trio) of WiFi Walkie Talkies.
Forums - View topic - WiFi Walkie Talkie Recommendations?
FM Transmitter
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Here is a nice and simple FM transmitter from David at Volunteer Lab Rat that will let you blast your iPod tunes on your stereo.
DIY FM Transmitter
Telegraphy
Telegraph (from Greek : tele τῆλε "at a distance", and graphein γράφειν "to write") is the long-distance transmission of messages without the physical exchange of an object bearing the message. Thus semaphore is a method of telegraphy whereas pigeon post is not. Telegraphy requires that the method used for encoding the message be known to both sender and receiver.