The 1-millimeter band is a portion of the EHF (microwave) radio spectrum internationally allocated to amateur radio and amateur satellite use. The band is between 241 GHz and 250 GHz.[1]
Due to the lack of commercial off the shelf radios, amateurs who operate on the 1 mm band must design and construct their own equipment, and those who do, often attempt to set communication distance records for the band.
The International Telecommunication Union allocates 241 GHz to 250 GHz to amateur radio and amateur satellites. Amateurs operate on a primary basis between 248 GHz and 250 GHz and on a secondary basis in the rest of the band. As such, amateurs must protect the radio astronomy and radiolocation services from harmful interference, which share the band with amateurs between 241 GHz and 248 GHz. In addition, 244 GHz to 246 GHz is an ISM band, and all users must accept interference caused by ISM devices. The ITU's allocations are the same in all three ITU Regions.[1]
^ ab Day, Peter; Qaurmby, John (May 9, 2019). "Microwave Distance Records". UK Microwave Group. Retrieved August 2, 2019.
^ "Australian VHF - UHF Records" (PDF). Wireless Institute of Australia. January 23, 2021. (PDF) from the original on August 1, 2021. Retrieved July 31, 2021.
External linksedit
UK Microwave Group's 241 GHz page
Setting a distance record on 241 GHz - Mount Greylock Expeditionary Force
First 241 GHz VUCC - Mount Greylock Expeditionary Force
This article related to amateur radio is a stub. You can help Wikipedia by expanding it.
millimeter, band, portion, microwave, radio, spectrum, internationally, allocated, amateur, radio, amateur, satellite, band, between, lack, commercial, shelf, radios, amateurs, operate, band, must, design, construct, their, equipment, those, often, attempt, co. The 1 millimeter band is a portion of the EHF microwave radio spectrum internationally allocated to amateur radio and amateur satellite use The band is between 241 GHz and 250 GHz 1 Due to the lack of commercial off the shelf radios amateurs who operate on the 1 mm band must design and construct their own equipment and those who do often attempt to set communication distance records for the band Contents 1 Allocation 2 List of notable frequencies 3 Distance records 4 See also 5 References 6 External linksAllocation editThe International Telecommunication Union allocates 241 GHz to 250 GHz to amateur radio and amateur satellites Amateurs operate on a primary basis between 248 GHz and 250 GHz and on a secondary basis in the rest of the band As such amateurs must protect the radio astronomy and radiolocation services from harmful interference which share the band with amateurs between 241 GHz and 248 GHz In addition 244 GHz to 246 GHz is an ISM band and all users must accept interference caused by ISM devices The ITU s allocations are the same in all three ITU Regions 1 List of notable frequencies edit245 GHz ISM band center frequency 1 248 000 to 248 001 GHz Satellite and narrow band modes 2 3 Distance records editThe current world distance record on the 1 mm band was 114 kilometres 71 mi set by US stations WA1ZMS and W4WWQ on January 21 2008 4 5 The longest distance achieved on 1 mm in the United Kingdom was 9 33 kilometres 5 80 mi between stations G0FDZ and G8CUB on April 30 2019 5 In Australia the 1 mm distance record was 3 8 kilometres 2 4 mi set by stations VK4FD 4 and VK4CSD 4 on December 5 2019 6 See also editAmateur radio frequency allocationsReferences edit a b c FCC Online Table of Frequency Allocations PDF 47 C F R Federal Communications Commission May 7 2019 Retrieved August 7 2019 VHF Managers Handbook PDF 7 International Amateur Radio Union Region 1 January 2015 p 56 Retrieved October 27 2015 IARU Region 2 Band Plan PDF International Amateur Radio Union Region 2 October 14 2016 p 16 Distance Records PDF Amateur Radio Relay League May 21 2019 Retrieved August 2 2019 a b Day Peter Qaurmby John May 9 2019 Microwave Distance Records UK Microwave Group Retrieved August 2 2019 Australian VHF UHF Records PDF Wireless Institute of Australia January 23 2021 Archived PDF from the original on August 1 2021 Retrieved July 31 2021 External links editUK Microwave Group s 241 GHz page Setting a distance record on 241 GHz Mount Greylock Expeditionary Force First 241 GHz VUCC Mount Greylock Expeditionary Force nbsp This article related to amateur radio is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title 1 millimeter band amp oldid 1171402943, wikipedia, wiki, book, books, library,
