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    Radio go box
    Wolfgang Waldner
    • 1 min

    Radio go box

    Portable radio station Radio stations in a portable case (radio go boxes) are particularly popular as emergency radio stations. In...
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    Satellite telephones
    Wolfgang Waldner
    • 1 min

    Satellite telephones

    If a secure connection is important, this technology is the first choice. A satellite telephone provides a connection for voice and / or...
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    Emergency transmitter
    Wolfgang Waldner
    • 2 min

    Emergency transmitter

    Emergency Position Indicating Radiobeacon Station (EPIRS or EPIRB) or Personal Locator Beacons (PLB), are small, portable transmitters...
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    PMR - radios
    Wolfgang Waldner
    • 2 min

    PMR - radios

    Personal Mobile Radio PMR radios are popular, and not without reason. The devices work at approx. 446 MHz (thus in the UHF range). They...
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    LoRaWAN
    Wolfgang Waldner
    • 1 min

    LoRaWAN

    Low Power Wide Area Network All possible sensors and actuators should be connected to the internet in the future. This then gives rise to...
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    Mesh networks
    Wolfgang Waldner
    • 1 min

    Mesh networks

    Mesh networks for broadband communication A meshed network is understood to be radio services that automatically select the communication...
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    Morse telegraphy
    Wolfgang Waldner
    • 1 min

    Morse telegraphy

    Morse code is still in use internationally after more than a hundred years. Many military personnel are still being trained in it. Due to...
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    Shortwave radio communication
    Wolfgang Waldner
    • 2 min

    Shortwave radio communication

    Shortwave connections cannot guarantee a 100% connection due to the changing propagation conditions. Nevertheless, such devices are still...
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    Natur, die auf Kristallglas reflektiert

    When it comes to "outdoor" adventures, it is sometimes particularly important to stay in contact - that's where the smartphone often fails.

    Testing possibilities and experimenting how you can still stay connected has become my hobby.

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