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
Emergency transmitter
Emergency Position Indicating Radiobeacon Station (EPIRS or EPIRB) or Personal Locator Beacons (PLB), are small, portable transmitters...
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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
- 1 min
Radio links
Point to point connection for broadband communication Directional radio links transmit radio signals at very high frequencies (in the GHz...
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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
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
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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Wolfgang Waldner
- 2 min
Satellite connection
For broadband connection, TV or radio reception. There are few parts of the world where it would not be possible to watch TV or listen to...
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Wolfgang Waldner
- 1 min
Cable connections
Large amounts of data can be transported over dozens of kilometers using modern fiber optic cables with little signal loss. With the...
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Wolfgang Waldner
- 1 min
Position tracker with messenger function
Devices such as the "SPOT Gen3" shown here continuously record the position of the user and make it visible to the contact persons. You...
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Wolfgang Waldner
- 1 min
Navigation
Electronic navigation devices require electrical energy and satellite reception. If one or the other is not available, these devices are...
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Wolfgang Waldner
- 2 min
Which is the objective?
Before you go into an area where there is no "network", you have to ask yourself a few questions, such as who you want to contact, which...
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Wolfgang Waldner
- 1 min
Field telephone
If only one voice connection is required, old field telephones can be used sensibly. Under favorable conditions (good cable, no...
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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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Wolfgang Waldner
- 1 min
"Dom" satellite antenna
What looks a bit like a camping grill in the picture is a portable satellite antenna. A small parabolic antenna is installed under the...
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Wolfgang Waldner
- 1 min
Handy statt Smartphone
In contrast to a smartphone, a simple mobile phone only offers a limited range of functions, but on the other hand also brings tangible...
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