The Standard Letter Designations for Radar-Frequency Bands was first issued in 1976 and was written to remove the confusion that developed from the misapplication to radar of letter band designations of other microwave frequency users. This standard relates the letter terms in common usage to the frequency ranges that they represent. The 1984 revision defined the application V and W to a portion of the millimeter wave region while retaining the previous letter designators for frequencies. The current (2002) revision keeps the same letter band designations, includes a change in the definition of millimeter wave frequencies to conform to the ITU designation, and revises the notes to Table 1. Table 1 has been modified for international applications by including Regions 1 and 3 in addition to Region 2.
- Standard Committee
- AES/RS - Radar Systems Panel
- Status
- Superseded Standard
- PAR Approval
- 2000-01-30
- Superseded by
- 521-2019
- Superseding
- 521-1984
- Board Approval
- 2002-09-12
- History
-
- ANSI Approved:
- 2009-11-09
- Published:
- 2003-01-08
- Reaffirmed:
- 2009-06-17
Working Group Details
- Society
- IEEE Aerospace and Electronic Systems Society
- Standard Committee
- AES/RS - Radar Systems Panel
- Working Group
-
686_WG - Terminology Working Group
- IEEE Program Manager
- Steven McGinley
Contact Steven McGinley - Working Group Chair
- Mark Yeary
Other Activities From This Working Group
Current projects that have been authorized by the IEEE SA Standards Board to develop a standard.
No Active Projects
Standards approved by the IEEE SA Standards Board that are within the 10-year lifecycle.
No Active Standards
These standards have been replaced with a revised version of the standard, or by a compilation of the original active standard and all its existing amendments, corrigenda, and errata.
No Superseded Standards
These standards have been removed from active status through a ballot where the standard is made inactive as a consensus decision of a balloting group.
No Inactive-Withdrawn Standards
These standards are removed from active status through an administrative process for standards that have not undergone a revision process within 10 years.
No Inactive-Reserved Standards