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Emissions are classified according to the mode of operation and the required bandwidth. A minimum of three symbols are used to indicate their main characteristics.<\/p>\n
First symbol<\/strong> \u2013 type of modulation of the main carrier;<\/p>\n Second symbol<\/strong> \u2013 carrier type;<\/p>\n Third character<\/strong> \u2013 type of transmitted information;<\/p>\n Note<\/em><\/strong>: the fourth and fifth characters are added for the needs of the ITU Radio Regulations and are not mandatory.< \/em><\/em><\/p>\n Fourth character<\/strong> \u2013 details of the signal;<\/p>\n Fifth character<\/strong> \u2013 type of multiplexing<\/p>\n <\/p>\n First character<\/strong> \u2013 base carrier modulation type:<\/p>\n Note<\/em><\/strong>: when frequency modulation (F) is noted, phase modulation (G) is also applicable. <\/em><\/p>\n <\/p>\n Second character<\/strong> \u2013 type of main carrier:<\/p>\n <\/p>\n Third character<\/strong> \u2013 type of transmitted information<\/p>\n <\/p>\n Fourth character<\/strong> – signal details:<\/p>\n <\/p>\n Fifth symbol<\/strong> \u2013 multiplexing:<\/p>\n <\/p>\n A1 – Amplitude modulation with two sidebands and an unmodulated carrier<\/strong> Emission classification Emissions are classified according to the mode of operation and the required bandwidth. A minimum of three symbols are used to indicate their main characteristics. First symbol \u2013 type of modulation of the main carrier; Second symbol \u2013 carrier type; Third character \u2013 type of transmitted information; Note: the fourth and fifth characters […]<\/p>\n","protected":false},"author":1,"featured_media":72,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32,30,34],"tags":[602,600],"class_list":["post-71","post","type-post","status-publish","format-standard","has-post-thumbnail","category-communications","category-ham-bg","category-radio-amateurs","tag-ham","tag-qrs-bg","czr-hentry"],"yoast_head":"\n\n
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Practical table for radio amateurs<\/h3>\n
\nA1A – amplitude CW audio telegraphy with two sidebands
\nA1B – amplitude CW telegraphy for automatic reception with two sidebands
\nA1C – Amplitude FAX facsimile with two sidebars
\nA1D – amplitude data transmission, telemetry, telecommands with two sidebands
\nA2 – Amplitude modulation with two sidebands with a modulated carrier<\/strong>
\nA2A – amplitude CW telegraphy for aural reception with a modulated carrier
\nA2B – amplitude CW telegraphy for automatic reception with a modulated carrier
\nA2C – Amplitude FAX facsimile with modulated carrier
\nA2D – amplitude data transmission, telemetry, telecommands with modulated carrier
\nA3 – Two sidebands (DSB) with analogue information<\/strong>
\nA3C – Single Channel DSB FAX Facsimile
\nA3E – Single Channel DSB AM Telephony (AM Sound Broadcasting)
\nF1 – Frequency modulation without modulated carrier<\/strong>
\nF1A – FM CW carrierless aural reception telegraphy
\nF1B – FM (FSK) RTTY, SITOR-A, carrierless automatic receiving telegraphy
\nF1C – FM FAX facsimile without carrier
\nF2 – Frequency modulation with modulated carrier<\/strong>
\nF2A – FM CW telegraphy for aural reception with a carrier
\nF2C – FM FAX facsimile with carrier
\nF2D – FM (FSK) PACKET data transmission, telemetry, carrier telecommands
\nF3 – Frequency modulation of analog information<\/strong>
\nF3C – FM FAX Facsimile
\nF3E – FM telephony (FM sound radio broadcasting)
\nF3F – FM SSTV Television (Video)
\nG3 – Phase modulation of analog information<\/strong>
\nG3C – FM FAX Facsimile
\nG3E – FM Telephony (including sound radio broadcasting)
\nG3F – FM ATV, SSTV Television (video)
\nJ2 – One sideband suppressed carrier (SSB) using modulated
\nserving
\nJ2A – Single-band CW telegraphy with modulated carrier for aural reception
\nJ2B – Single Band CW Telegraphy with Modulated Carrier for Automatic Reception
\nJ2C – Single Band FAX Modulated Carrier Facsimile
\nJ2D – Single-band Clover, data transmission, telemetry, modulated carrier telecommands
\nJ3 – One suppressed carrier (SSB) sideband for analog information<\/strong>
\nJ3C – SSB FAX Facsimile
\nJ3E – SSB Telephony (including sound radio broadcasting)
\nJ3F – SSB ATV Television (video)
\nR3 – One sideband with reduced or variable carrier level for analog<\/strong>
\ninformation<\/strong>
\nR3C – SSB FAX Facsimile with reduced carrier
\nR3E – Reduced Carrier SSB Telephony (SSB Audio Broadcasting)<\/p>","protected":false},"excerpt":{"rendered":"