Auteur Topic: DVT (USA) Forum website  (gelezen 3091 keer)

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Radiofreak

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DVT (USA) Forum website
« Gepost op: 3 juni 2015, 16:55:56 »
Dit is misschien wel handig om weten. En ik zie ook dat er heel veel info the vinden is over Antennes  

Deze lijst wil je even melden goed voor DX info als de lage banden open zijn.
United States and Canada

Frequency assignments between US and Canadian users are closely coordinated since much of the Canadian population is within VHF radio range of the US border. Certain discrete frequencies are reserved for radio astronomy. The general services in the VHF band are:
30–46 MHz: Licensed 2-way land mobile communication. [2]
30–88 MHz: Military VHF-FM, including SINCGARS
43–50 MHz: Cordless telephones, 49 MHz FM walkie-talkies and radio controlled toys, and mixed 2-way mobile communication. The FM broadcast band originally operated here (42-50 MHz) before moving to 88-108 MHz.
50–54 MHz: Amateur radio 6 meter band; 50 MHz is an amateur radio band used for a variety of uses including DXing, FM repeaters and radio control, which usually takes place on a "set-aside" band between 50.8 and 51 MHz.
55-72 and 77-88 MHz TV channels 2 through 6, known as "Band I" internationally; a tiny number of DTV stations will appear here. See North American broadcast television frequencies
72–76 MHz: Radio controlled models, industrial remote control, and other devices. Model aircraft operate on 72 MHz while surface models operate on 75 MHz in the USA and Canada, air navigation beacons 74.8-75.2 MHz.
88–108 MHz: FM radio broadcasting (88–92 non-commercial, 92–108 commercial in the United States) (Known as "Band II" internationally)
108–118 MHz: Air navigation beacons VOR
118–137 MHz: Airband for air traffic control, AM, 121.5 MHz is emergency frequency
137-138 Space research, space operations, meteorological satellite [3]
138–144 MHz: Land mobile, auxiliary civil services, satellite, space research, and other miscellaneous services
144–148 MHz: Amateur radio band 2 Meters
148-150 Land mobile, fixed, satellite
150–156 MHz: "VHF Business band," the unlicensed Multi-Use Radio Service (MURS), and other 2-way land mobile, FM
156–158 MHz VHF Marine Radio; narrow band FM, 156.8 MHz (Channel 16) is the maritime emergency and contact frequency.
160-161 MHz Railways [4]
162.40–162.55: NOAA Weather Stations, narrowband FM
175-216 MHz television channels 7 - 13, known as "Band III" internationally. A minority of DTV channels may appear here.
174–216 MHz: professional wireless microphones (low power, certain exact frequencies only)
216–222 MHz: land mobile, fixed, maritime mobile, [5]
222–225 MHz: 1.25 meters (US) (Canada 219-220, 222-225 MHz) Amateur radio
225 MHz and above: Military aircraft radio (225–400 MHz) AM, including HAVE QUICK, dGPS RTCM-104

The large technically and commercially valuable slice of the VHF spectrum taken up by television broadcasting has attracted the attention of many companies and governments recently, with the development of more efficient digital television broadcasting standards. In some countries much of this spectrum will likely become available (probably for sale) in the next decade or so (June 12, 2009, in the United States).

Bron : http://www.dtvusaforum.com/dtv-hdtv-reception-antenna-discussion/4396-evs-best-top-rated-fm-hd-radio-antenna-guide-reviews.html