Copyright © Philip M. Parker, INSEAD. Terms of Use.
| Domain | Definition |
Aerospace | Kc 4 3- 30 Myriametric Very-low VLF 5 30- 300 Kilometric Low LF 6 300- 3,000 Hectometric Medium MF 7 3,000- 30,000 Decametric High HF mc 8 30- 300 Metric Very-high VHF 9 300- 3,000 Decimetric Ultra-high UHF 10 3,000- 30,000 Centimetric Super-high SHF 11 30,000- 300,000 Millimetric Extremely high EHF 12 300,000- 3,000,000 Decimillimetric -- -- Note that band N extends from 0.3*10N to 3*10N cycles; thus band 4 designates the frequency range 0.3*104 to 3*104 cycles. The upper limit is included in each band; the lower limit is excluded. Description of bands by means of adjectives is arbitrary and the CCIR recommend that it be discontinued. The designation ELF, extremely low frequency, has recently been proposed for the band extending from 3 kilocycles down to 1 cycle per second. These frequencies have been used for years in the study of lightning and associated phenomena and may be useful in communicating with spacecraft.The frequency bands used by radar (radar frequency bands) were first designated by letters for military secrecy. Those designations were:. (references) |
Source: compiled by the editor from various references; see credits. | |
Hexadecimal (or equivalents, 770AD-1900s) (references)41 54 4C 41 4E 43 54 49 43 43 49 54 59 46 52 45 51 55 45 4E 43 59 53 55 42 44 49 56 49 53 49 4F 4E |
| Leonardo da Vinci (1452-1519; backwards) (references)
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Binary Code (1918-1938, probably earlier) (references)01000001 01010100 01001100 01000001 01001110 01000011 01010100 01001001 01000011 00100000 01000011 01001001 01010100 01011001 00100000 01000110 01010010 01000101 01010001 01010101 01000101 01001110 01000011 01011001 00100000 01010011 01010101 01000010 01000100 01001001 01010110 01001001 01010011 01001001 01001111 01001110 |
HTML Code (1990) (references)A T L A N C T I C   C I T Y   F R E Q U E N C Y   S U B D I V I S I O N |
ISO 10646 (1991-1993) (references)0041 0054 004C 0041 004E 0043 0054 0049 0043 0043 0049 0054 0059 0046 0052 0045 0051 0055 0045 004E 0043 0059 0053 0055 0042 0044 0049 0056 0049 0053 0049 004F 004E |
Encryption (beginner's substitution cypher): (references)355446354837544337237435459240523951553948375925355363843564353434948 |
| 1. Orthography 2. Bibliography |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
