| 翻訳と辞書 |
| Kort Distanse Radio ： ウィキペディア英語版 |
KDR 444
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〔http://www.pts.se/upload/Foreskrifter/Radio/ptsfs-2012-3-undantag-tillstand.pdf PTSFS 2012:3 3 kap 89 §〕 and 0.5 W in Norway. FM with a bandwidth of 16 kilohertz (25 kHz in Norway) is used.〔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) (Norwegian )〕
==Channels==
There are eight channels (originally six).
Channels 6 and 7 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.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「KDR 444」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|