MIL-DTL-4946E
DEPARTMENT OF DEFENSE STANDARDS
MIL-STD-130 - Identification Marking of U.S. Military Property.
MIL-STD-810 - Environmental Engineering Considerations and Laboratory Tests.
(Copies of these documents are available online at https://www.assist.dla.mil/ or from the Standardization
Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.)
2.2.2 Other Government documents, drawings, and publications. The following other Government documents,
drawings, and publications form a part of this document to the extent specified herein. Unless otherwise specified,
the issues of these documents are those cited in the solicitation or contract.
AIR FORCE DRAWING
64C3418
- Antenna Assembly, AT-197( )/GR, Discone.
64C3419
- Antenna Mounting.
(Unless otherwise indicated, copies of the above specifications, standards, and handbooks are available from the
procuring activity or as directed by the contracting officer.)
2.3 Order of precedence. Unless otherwise noted herein or in the contract, in the event of a conflict between the
text of this document and the references cited herein, the text of this document takes precedence. Nothing in this
document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained.
3. REQUIREMENTS
3.1 Preproduction. The antenna furnished under this specification shall be a product that has been tested, and
passed the preproduction tests specified in 4.4.
3.2 General service requirements. General service requirements shall conform to best manufacturing practice.
Exceptions and additions shall be as follows.
3.2.1 Ambient temperature. The antenna shall be designed to operate over a temperature range of
-54°C (-65°F) to +71°C (+160°F).
3.2.2 Relative humidity. The antenna shall be capable of operation up to a relative humidity of 95 percent between
the temperature of 20°C (68°F) and 71°C (160°F) (see 4.6.4.5).
3.2.3 Service conditions (electrical). The electrical service condition requirements for the antenna shall be as
specified herein (see 4.6.2).
3.2.4 Service life. The antenna shall be designed and constructed for continuous operation with a life expectancy
of 5 years.
3.3 Material. The material for the antenna shall be of a type that will permit the antenna to meet the performance
and environmental requirements of this specification.
3.3.1 Pure tin. The use of pure tin, as an underplate or final finish, is prohibited both internally and externally. Tin
content of radio and microwave frequency fixed attenuator components and of solder shall not exceed 97 percent, by
mass. Tin shall be alloyed with a minimum 3 percent lead, by mass (see 6.3).
3.4 Design and construction. The antenna shall have the design, construction, and physical dimensions specified
in AF Drawing 64C3418.
3.4.1 Polarization. The antenna shall be designed for vertical polarization.
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