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EA:  EM_BAND

Status: STD 2005/06/07
Code: 334
Concept definition: The scientifically-accepted designation for a range of <<FREQUENCY>>s within the electromagnetic spectrum; electromagnetic band.
 
Attribute value type: ENUMERATION
Reference type:  
Reference:  
Supplemental references:  
Enumerants (presented in a natural order)
Status Attribute label Enumerant label Concept definition Code Ref type Reference ▾ Supplemental references
STD
2014/02/14		 EM_BAND D 110 gigahertz to 170 gigahertz; D. 45  
STD
2014/02/14		 EM_BAND EXTREME_UV Approximately 3 petahertz to approximately 30 petahertz; extreme ultraviolet. 55  
STD
2014/02/14		 EM_BAND F 90 gigahertz to 140 gigahertz; F. 47  
STD
2005/06/07		 EM_BAND FARULTRAVIOLET 3 petahertz to 300 petahertz; farultraviolet. 39 [SOED, "farultraviolet"]
STD
2005/06/07		 EM_BAND GAMMA 30 exahertz to 300 exahertz; gamma. 44 [SOED, "gamma", 3.c]
STD
2014/02/14		 EM_BAND HARD_X_RAY 3 exahertz to 30 exahertz; hard X-ray. 48  
STD
2005/06/07		 EM_BAND MICROWAVE 3 gigahertz to 300 gigahertz; microwave. 13 [SOED, "microwave", A.1]
STD
2005/06/07		 EM_BAND P_RADIO 225 megahertz to 390 megahertz, a special radio subband that overlaps the boundary of <<<VHF>>> and <<<UHF>>>; P radio. 10 [APDS, "P band"]
STD
2005/06/07		 EM_BAND Q_RADIO 36 megahertz to 46 megahertz, a radio subband within <<<VHF>>>; Q radio. 9 [APDS, "Q band"]
STD
2005/06/07		 EM_BAND RF Less than 3 gigahertz; radio frequency. Note that the RF band omits microwave bands, although these can be used for communication. 1 [SOED, "radio-frequency"]
Group membership:

In addition to the status and date information for each entry, a colour coding scheme highlights the database holding to which an entry belongs. The following highlight colours are used:

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  • yellow - the entry has been added to the register
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  • cyan - a deprecated entry that was originally either in the standard or was added to the register, but has since been deprecated

The following icons are used to identify items that have figures, modifications and/or clarification notes:

  • F n - has Figures and, if more than one figure, n figures
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