13-centimeter band

Amateur radio frequency band thumb|Helical antenna for the 13-cm band|312x312px The 13 centimeter, 2.3 GHz or 2.4 GHz band is a portion of the UHF (microwave) radio spectrum internationally allocated to amateur radio and amateur satellite use on a secondary basis. The amateur radio band is between 2300 MHz and 2450 MHz, and thereby inside the S-band. The amateur satellite band is between 2400 MHz and 2450 MHz, and its use by satellite operations is on a non-interference basis to other radio users (ITU footnote 5.282). The license privileges of amateur radio operators include the use of frequencies and a wide variety of modes within these ranges for telecommunication. The allocations are the same in all three ITU Regions. The band is also allocated to the Mobile service in the 2300–2400 MHz range on a Primary basis, which in practice creates some difficult sharing scenarios and erratic amateur allocations at the national level. Above 2400 MHz the band overlaps with the 2.4 GHz ISM (industrial, scientific, and medical) band, and amateur stations must accept harmful interference caused by ISM equipment operating in the band, such as microwave ovens. The ISM band is also used by unlicensed devices, such as Wi-Fi and Bluetooth, which must not cause interference to amateur stations. History The first Earth-Venus-Earth contact by amateur radio operators was established on the 13 cm band in 2009. In HAMNET, the 13 cm band is primarily used for user access.German AMSAT Team Transmits, Receives Signals from Venus http://www.arrl.org/news/german-amsat-team-transmits-receives-signals-from-venus 2025-12-24 www.arrl.org en Frequencies allocations thumb|250px|ITU regions. #fd0 Region 1 #0df Region 2 #d0f Region 3 |left 2,304.1 MHz Region 2 CW & SSB calling frequency 2,320.2 MHz Region 1 Narrow-band calling frequency 2,450 MHz Operating frequency of ISM devices. Generally, amateur radio is permitted worldwide in the frequency range of 2300 MHz to 2450 MHz.Amateur and Amateur satellite Service Spectrum https://www.iaru-r1.org/wp-content/uploads/2020/01/Amateur-Services-Spectrum-2020_-1.pdf However, in Germany, only the frequency range above 2320 MHz is allocated to amateur radio. In the United States, the 13 cm band comprises frequencies in two segments stretching from 2.300 to 2.310 GHz, and from 2.390 to 2.450 GHz.Title 47, Part 97.301 (Subpart D): Technical Standards. http://www.arrl.org/FandES/field/regulations/news/part97/d-301.html accessed 12 May 2008 (The segment from 2.310 to 2.390 GHz was withdrawn from the amateur service and reallocated to direct satellite radio broadcasting, e.g., Sirius XM Radio.) The segment, 2.390 to 2.417 GHz, is domestically allocated amateur radio on a primary basis, while the remainder of the band is only available on a secondary basis. It is authorized to all amateur radio licensees who hold a Technician or higher class license (US), or a Basic or higher license (Canada). The band is allocated on a shared basis with other services, and U.S. Federal Communications Commission (FCC) Rules specify that amateurs may not cause interference to and must accept interference from other services authorized by other nations, and by radio-location, fixed, and mobile stations (except aeronautical) authorized by the FCC.47 C.F.R. §97.301, §97.303 As in the rest of the world, US stations in the amateur service are not protected from interference caused by industrial, scientific, and medical equipment. The bandplan published by the American Radio Relay League recommends frequencies based on intended activity in the band.Band Plan The following table shows the amateur radio bandplan for the 13-cm band: Frequence rangeUse2320,000–2320,025 MHzCW, EME2320,025–2320,150 MHzCW, Aktivitätszentrum PSK31 2320,138 MHz2320,150–2320,800 MHzCW & SSB, Aktivitätszentrum SSB 2320,200 MHz2320,800–2320,990 MHzinternationales Baken-Projekt2321,000–2322,000 MHzSchmalband, Simplex & Relaiseingabe (NBFM)2322,000–2355,000 MHzATV, RX (16 MHz)2355,000–2365,000 MHzdigitale Kommunikation2355,000–2365,000 MHzDuplex, digital (+35 MHz Shift)2365,000–2370,000 MHzSchmalband, Relaisausgabe (NBFM)2370,000–2392,000 MHzATV, TX (16 MHz)2392,000–2400,000 MHzDuplex, digital (−35 MHz Shift)2400,000–2450,000 MHzAmateurfunksatelliten See also Amateur radio frequency allocations High-speed multimedia radio References http://transition.fcc.gov/oet/spectrum/table/fcctable.pdf FCC Online Table of Frequency Allocations August 13, 2015 47 C.F.R. Federal Communications Commission October 27, 2015 http://www.iaru-r2.org/documents/explorer/files/Plan%20de%20bandas%20%7C%20Band-plan/R2%20Band%20Plan%202016.pdf IARU Region 2 Band Plan International Amateur Radio Union Region 2 12 October 14, 2016 http://www.iaru-r1.org/index.php/documents/func-download/580/chk,f9e4e4a0053473343dfd0d809805d442/no_html,1/ VHF Managers Handbook 7 International Amateur Radio Union Region 1 PDF 47 January 2015 October 27, 2015 June 17, 2018 https://web.archive.org/web/20180617050730/http://www.iaru-r1.org/index.php/documents/func-download/580/chk,f9e4e4a0053473343dfd0d809805d442/no_html,1 dead Category:Amateur radio bands