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10-7 B Off Radio 10-8 In service. In Service Clear In Service 10-9 Repeat, conditions bad. Repeat Say Again 10-10 Out of service—subject to call. On minor detail, subject to call Fight in progress Negative — 10-11 Dispatching too rapidly. Stay in service Dog Case ... On Duty On Radio 10-12 Officials or visitors present. Visitors or ...
In the Americas (defined as International Telecommunication Union (ITU) region 2), the FM broadcast band consists of 101 channels, each 200 kHz wide, in the frequency range from 87.8 to 108.0 MHz, with "center frequencies" running from 87.9 MHz to 107.9 MHz.
10 fHz ~31.71 fHz: Once every one million years 10 −12: 1 picohertz (pHz) 1.23 pHz Precession of the Earth's axis (about every 25,700 years) 10 −11: 10 pHz ~31.71 pHz: Once per millennium 10 −10: 100 pHz ~317.1 pHz: Once per century 10 −9: 1 nanohertz (nHz) ~1 nHz: Once per generation (about every 30 years) ~2.9 nHz
Download QR code; In other projects ... United States radio spectrum frequency allocations chart as of January 2016. ... Archived at archive.org on 2016-10-30.
30 metres – 10.100–10.150 MHz – 29.68–29.54 m actual A very narrow band, which is shared with non-amateur services. It is recommended that only Morse code and data transmissions be used here, and in some countries amateur voice transmission is actually prohibited.
The codes' procedure words, a type of voice procedure, are designed to convey complex information with a few words, when brevity is required but security is not; Ten-code, North American police brevity codes, including such notable ones as 10-4; Phillips Code; NOTAM Code; Wire signal, Morse Code abbreviation, also known as 92 Code. Appears in ...
Commercial and Government Radio Stations of the U.S. (6/30/1928), pages 162-166 Major reallocation made under the provisions of the FRC's General Order 40 [3] Call letters: Commercial and Government Radio Stations of the U.S. (6/30/1928), pages 167-171 Frequency: Commercial and Government Radio Stations of the U.S. (6/30/1928), pages 172-176 ...
R and S brevity codes, published by the British Post Office in 1908 for coastal wireless stations and ships, superseded in 1912 by Q codes [1] X code, used by European military services as a wireless telegraphy code in the 1930s and 1940s; Z code, also used in the early days of radiotelegraph communication.