Cellular device
(the frequency set here is outside the amateur radio range in ITU region 1, but is assigned to the amateur radio service in ITU region 2.)
The mobile radio device is a radio device that can be operated as a portable radio station in a vehicle thanks to its compact design. It forms the counterpart to the stationary operated systems such as station radios , land radio and relay radio stations .
Commercial radio
In PMR mainly two frequency ranges are used, the 2-meter band and 70-centimeter band . In addition, the 4-meter tape is still used, but this is only important for a small group of users in traffic radio, public transport, energy supply companies and forestry. Such devices are always mono-band devices - in contrast to amateur radio, where mostly multi-band devices are used.
Amateur radio
In the amateur service many different mobile devices are used. Cellular devices can mostly operate on the 10-meter , 2-meter, 70-cm, and 23-cm bands . In recent years, many new mobile phones hit the market, in addition all short wave - amateur bands cover such. B. the Yaesu FT-857 and Yaesu FT-100.
operation area
Mobile radio devices are often permanently installed in motor vehicles, but are also increasingly being used as station devices. They can be operated as a mobile or stationary amateur radio station as required.
Amateur radio devices are occasionally used with BOS radio units on their own frequencies. Here you take advantage of the possibility that the frequency range of the more modern devices can be expanded. These are not only prepared for radio operations abroad due to the expanded amateur bands there, but z. B. also for emergency radio .
literature
- B. Schueler: Radiotelephone training for fire departments . 2nd Edition. G. Schueler, Celle 1998, ISBN 3-929137-10-0 .