KDR 444

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KDR 444 (Norwegian "kortdistanseradio", Swedish "kortdistansradio", "short distance radio") or KDR, is a licence-free personal radio service in the UHF range used in Sweden and Norway. It is usually referred to as SRBR 444 (Short Range Business Radio) in Sweden. Transmitters are limited to 2 W ERP (previously 1 W) in Sweden[1] and 0.5 W in Norway. FM with a bandwidth of 16 kilohertz (25 kHz in Norway) is used.[2]

Channels[edit]

There are eight channels (originally six).

Channel Frequency (MHz)
1 444.600
2 444.650
3 444.800
4 444.825
5 444.850
6 (new) 444.875 [3]
7 (new) 444.925 [4]
8 (old 6) 444.975

It should be noted that channels six and seven are recent additions and available for use in Sweden (but not in Norway). Frequencies 444.875 and 444.925 may not be available on older equipment; consequently, 444.975 is likely to be called channel number six on such devices.

The assigned frequencies are used for other services in other countries; for example, in Germany some of these channels are allocated for public safety (police, fire, ambulance) services (See de:BOS-Funk, in German). Countries in ITU region 2 may allocate these frequencies to the amateur radio service.

See also[edit]

References[edit]

  1. ^ http://www.pts.se/upload/Foreskrifter/Radio/ptsfs-2012-3-undantag-tillstand.pdf PTSFS 2012:3 3 kap 89 §
  2. ^ http://www.lovdata.no/cgi-wift/ldles?ltdoc=/for/ff-20120119-0077.html#40 Norwegian regulation on general permission for use of frequencies $40 (2) [in Norwegian]
  3. ^ http://www.pts.se/upload/Foreskrifter/Radio/ptsfs-2012-3-undantag-tillstand.pdf PTSFS 2012:3 3 kap 89 §
  4. ^ http://www.pts.se/upload/Foreskrifter/Radio/ptsfs-2012-3-undantag-tillstand.pdf PTSFS 2012:3 3 kap 89 §