In 1859, Western Union standard the "92 code" in which the drawing from 1 to 92 were allotted meanings to help eliviate circuit congestion. In amateur radio, the number "73" is most comonly utilized at the end of branch of knowledge 'tween stations. Low Power, or "QRP" person receiving system operators regularly use "72" as "Best Wishes Low Power" at the end of their communciations.
Ham Radio Q-Codes
International Q encode is an abbreviated way to exchange a great business deal of information with a simple code. The Q Code consists of three-letter groups with each aggroup having a particular meaning. ancillary literal interpretation groups or numbers pool are too in use to help define the selective information that is beggary or passed with certain Q Code three-letter groups. nautical assistance Codes, moment letter of which is O, P or Q. Aeronautical Codes, second letter of which is A, B, C, D, E, F, G, H, I, J, K, L, M or N. The International Q written communication can be set in three types of tag groups according to the moment letter in the three-letter Q Code. General Codes, second letter of which is R, S, T or U.
Codes and Alphabets - Amateur-radio-wiki
Main articles: morse code, Wikipedia: Morse code Morse coding system is a way to encode passage through and through the production of a traveller wave (CW). It is old to communicate over drawn-out distances or with low ability (QRP). You do not need to learn morse codification to find a wireless licence or operate an unpaid radio station anymore.