Superseded Standard

IEEE 521-1984

IEEE Standard Letter Designations for Radar-Frequency Bands

Since World War II, radar systems engineers have used letter designations as a short notation for describing the frequency band of operation. This usage has continued throughout the years and is now an accepted practice of radar engineers. Radar-frequency letter designations are used for given reasons. The radar letter designations are consistent with the recommended nomenclature of the International Telecommunications Union (ITU). The high frequency (HF) and the very high frequency (VHF) definitions are identical in the two systems. The essence of the radar nomenclature is to subdivide the existing ITU bands, in accordance with radar practice, without conflict or ambiguity.

Sponsor Committee
AES/RS - Radar Systems Panel
Learn More About AES/RS - Radar Systems Panel
Status
Superseded Standard
Superseded by
521-2002
Superseding
521-1976
Board Approval
1984-03-22
History
ANSI Approved:
1985-02-19
ANSI Withdrawn Date:
2000-07-28
Published:
1984-11-30
Reaffirmed:
1989-11-09

Working Group Details

Society
IEEE Aerospace and Electronic Systems Society
Learn More About IEEE Aerospace and Electronic Systems Society
Sponsor Committee
AES/RS - Radar Systems Panel
Learn More About AES/RS - Radar Systems Panel

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No Superseded Standards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No Inactive-Withdrawn Standards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
Subscribe to our Newsletter

Sign up for our monthly newsletter to learn about new developments, including resources, insights and more.