DXing (from DX for "distance ") means the attempts to receive or to contact a distant radio station distant broadcast in the radio operation and maintenance.
The reception of distant transmitters is due to reflections of the radio waves in the ionosphere allows ( long, medium and short wave ), while the VHF band allow temporary overreach in the troposphere or the ionosphere ( Sporadic -E) reception. The reflection behavior of the ionosphere is the time of day and season, and solar activity ( sunspots ) dependent. As a specialized field of meteorology are available for propagation conditions a radio weather and propagation forecasts.
DX in the amateur radio service
In amateur radio DX ( - s) has a similar meaning. Radio communications on the shortwave that are made between different continents, are regarded as DX. Another definition states that in the short wave radio links are classified as DX contacts from 3000 km. In the VHF, UHF and SHF radio connections are referred to as DX, if they take place over distances beyond the quasi- optical sight beyond - for simplicity in the 2 meter band and the 70 -centimeter band at distances of more than 300 km from DX spoken.
DXpeditions ( when field day on, for example, hard to reach islands in countries without local radio amateurs or in Antarctica) allow DX contacts rarely achievable by radio areas. The coveted stations often use publicly available over the Internet logbook ( online log ), not to be burdened by multiple connections with radio amateurs who are not sure whether they have been understood by the coveted station at all. Radio amateurs confirm each other usually DX contacts with QSL cards.
It is also DXing in CB radio possible, due to the characteristics of the frequencies around 27 MHz but only rarely, and in good propagation conditions.
The reception of shortwave stations is possible with any normal radio, which has a short-wave frequency band. It makes sense to a world receiver is used for this.
The short wave reception, both large international channels as well as from distant local radio stations, is operated by many people as a hobby. Alone in German-speaking Europe experienced shortwave listener club more than 4,000 members. Its members often also deal with remote reception in other wavebands, in particular the long and medium waveband. Who runs the DX hobby can be its radio reception confirmed by QSL cards. DXer take to the corresponding radio contact by mail or email.
All ARD and major international broadcasters confirm a successful remote reception with QSL cards. But even some domestic stations and non- broadcasters, such as the time signal services, confirm receipt of reports with QSL cards. Due to financial constraints, however, the proportion of radio stations that respond to continuously lower.
- FM reception Spanish stations in Central Europe.
- Receiving further NDBs in the long wave range.
- Medium wave reception of European channels in southern Africa.
- Reception of shortwave broadcasting from around the world.
- Reception of Morse signal from SAQ on Alexanderson Day ( VLF: transmission frequency of 17.2 kHz).