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Posts Tagged ‘longwave’

Low power longwave transmitter experiment

Tuesday, March 31st, 2015

Sverre Holm writes: There are several low power transmitters around that can be purchased, but most of them only cover the mediumwave band and not longwave (153-279 kHz). Further they are quite complicated as the frequency necessarily has to be user settable. I looked for a simpler way to make...

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Posted in DIY, hacks | 1 Comment »

Recent Comments

  • Cyk: Well, this is an application that I'd solve with an Android smartphone. Used Moto G phones can be found on Ebay for ~€30, and thanks...
  • Noy: Yuuup
  • Vibhore: I'm waiting. *Fingers_crossed
  • KH: I guess this is a failed attempt at making a pass/fail cable tester out of discrete ICs. A single pass/fail LED is not that useful....
  • Max: Considering it only seems to test that all wires conduct, I'm not sure what exactly does this show you that 7 LEDs each powered through...