Wolfgang Waldner
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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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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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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Wolfgang Waldner
- 2 min
Radio wave propagation (part 2)
Radio signal propagation in the VHF. UHF, SHF and EHF - range VHF : Very High Frequency 30 MHz - 300 MHz UHF: Ultra High Frequency ...
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Wolfgang Waldner
- 3 min
Radio wave propagation (part 1)
Signal propagation in the long, middle and shortwave range LW: Low wave / frequency: 30 kHz - 300 kHz MW: Medium wave / frequency: 0,3...
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Wolfgang Waldner
- 2 min
CB - radio
Citizen Band in the 27 MHz - range CB radios work in the upper shortwave range at approx. 27 MHz. The radio frequencies are therefore in...
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Wolfgang Waldner
- 1 min
Toy radios
Only toy radios in the PMR range come close to the properties of "full-blown" devices. Most of the time, however, the devices for the...
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Wolfgang Waldner
- 1 min
Amateur radio
When radio becomes a hobby Amateur radio operators have passed a state examination in which they have proven their knowledge of radio...
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Wolfgang Waldner
- 1 min
Radio receiver
World receivers and crank radios A radio receiver provides entertainment and information. If you are in the transmission area of ​​FM or...
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Wolfgang Waldner
- 2 min
Laptop & Radio
Digital modes for datacommunications The combination of laptop and radio is now common in the outdoor area. On the one hand, the user has...
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Wolfgang Waldner
- 2 min
Radiorepeaters
Radio relais are located in exposed locations and are used to transmit the received signal again in order to cover a larger transmission...
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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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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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