An emissions designator is a 6 to 8 character code identifying the electromagnetic modulation characteristics of a wireless device. Different codes represent different features of the wireless emissions from a product. Emission Designators are used by many governments including the FCC and ACMA. FCC Emission Designators. If you have ever obtained a license from the FCC or spent anytime looking at your radios manual you will notice a seven digit code. Like 11K2F3E or 20K0F3E. Its not there for decoration, it actually means something. The first four digits, in the example above, stand for occupied bandwidth in kilohertz.
Guide to Emission Designators An emission designator utilizes a seven-character “word” to represent the bandwidth, modulation, nature of signal, and type of information transmitted by a particular radio. The emission designator is required in most FCC radio applications. The International Telecommunication Union uses an internationally agreed system for classifying radio frequency signals. Each type of radio emission is classified according to its bandwidth, method of modulation, nature of the modulating signal, and type of information transmitted on the carrier academiy-malig.info is based on characteristics of the signal, not on the transmitter used.
What do the three-letter modulation codes (emission designators) stand for? Ask Question Asked 5 years, 9 months ago. Active 5 years, 9 months ago. Viewed 4k times 2 $\begingroup$ I've seen these weird three-letter modulation codes like J3E, A3F, A1A, . FEDERAL COMMUNICATIONS COMMISSION Washington, DC In the Matter of)) Amendment of Part 97 of the) RM Commission’s Rules to Facilitate Use in) the Amateur radio Service of Single) Slot Time Division Multiple Access) Telephony and Data Emissions) To: The Commission designator by which such emissions, and others, are.