ASTM F1491-93(2002)

Standard Specification for An Avalanche Beacon Frequency (Withdrawn 2007)

SCOPE
1.1 This specification establishes a National Avalanche Beacon Frequency.
WITHDRAWN RATIONALE
This specification establishes a National Avalanche Beacon Frequency.
This specification is being withdrawn because, in the time since its publication, avalanche beacon manufacturers have standardized on a single frequency. Given this development, the committee feels that this specification is redundant and unnecessary.
Formerly under the jurisdiction of Committee F32 on Search and Rescue, this specification was withdrawn without replacement in June 2007.

General Information

• Status: Withdrawn
• Publication Date: 14-Aug-1993
• Withdrawal Date: 12-Jun-2007
• ICS: 13.200 - Accident and disaster control
• ICS: 33.060.01 - Radiocommunications in general
• Technical Committee: F32 - Search and Rescue
• Drafting Committee: F32.01 - Equipment, Testing, and Maintenance

Relations

• Replaces: ASTM F1491-93(1997) - Standard Specification for An Avalanche Beacon Frequency
• Effective Date: 15-Aug-1993

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: F 1491 – 93 (Reapproved 2002)
Standard Specification for
An Avalanche Beacon Frequency
This standard is issued under the fixed designation F 1491; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope (2.275 kHz) shall not impair or disable effective operation with
the standard frequency.
1.1 This specification establishes a National Avalanche
3.4 Transition to Standard Frequency—Both frequencies
Beacon Frequency.
should be employed during the interim period. Incorporation of
2. Terminology
the interim frequency is intended to provide temporary back-
ward interoperability with older beacons, until such devices
2.1 Definitions of Terms Specific to This Standard:
can be replaced or retired. Beacons incorporating both frequen-
2.1.1 avalanche beacon—an electronic device for radio
cies should be employed until December 31, 1995. After this
location of persons buried or trapped, usually by snow, and
date, only single frequency (457.0 kHz) beacons should be
employing radio frequency electromagnetic induction.
employed and the use of 2.275 (kHz) should be discontinued.
3. Requirements
4. Significance and Use
3.1 Standard Frequency—The avalanche beacon shall op-
4.1 Avalanche beacons are used for the location of persons
erate on a frequency of 457.0 kHz.
who are buried by avalanches. In operation, users wear the
3.2 Additional Interim Frequency—The avalanche beacon
beacons, which are all set to transmit. After an incident, the
may also operate on a frequency of 2.275 kHz.
rescuers switch their units to receive and search
...