1、MIL-PRF-55359A E 9979906 2053882 9TT I INCH POUND 1 MIL-PRF-55359A(CR) 9 June 1997 SUPERSEDING 19 March 1973 MIL-A-55359(EL) PERFORMANCE SPECIFICATION ANTENNA AS- 1304( )/ARN-30 This specification is approved for use by the USACECOM, Department of Army, and is available for use by all Departments an
2、d Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This document covers one type of Very High Frequency (VHF) Omnidirectional range balanced loop airborne antenna for the reception of Instrument Landing System (ILS), Localizer and Very High Frequency Omni-range (VOR) signals for use with A
3、irborne Navigational equipments within the frequency range of 108 to 122 MHz and designated AS-1304( )/ARN-30 (see 6.1 and 6.3). 1.2 Appendices. The appendix listed below forms a part of this specification. Appendix - Temperature Altitude Test. 2. APPLICABLE DOCUMENTS 2.1 General. The documents list
4、ed in this section are specified in sections 3 and 4 of this speciication. This section does not include documents in other sections of this specification or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, document user
5、s are cautioned that they must meet all specified requirements documents cited in sections 3 and 4 of this specification, whether or not they are listed. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addres
6、sed to: Commander, U.S. Army Communications-Electronics Command, AITN: AMSEL-LC-LEO-E-EP, Fort Monmouth, NJ 07703 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A: FSC 5826 - DISTRIBUTION STATEMENT A
7、: Approved for public release; distribution is unlimited. Licensed by Information Handling Services MIL-PRF-55359A U ?9999Ob 2053883 836 m MIL-PRF-55359A(CR) 2.2 Government documents. 2.2.1 Specifications. standards. and handbooks. The following specifications, standards, and handbooks form a part o
8、f this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those listed in the Department of Defense Index of Specifications and Standards (DoDISS) and supplement thereto, cited in the solicitation. SPECIFICATIONS DEPARTMENT OF DEFENSE MIL-E-5400 El
9、ectronic Equipment, Aerospace, General Specification for MIL-M- 1323 1 Marking of Electronic Items MIL-F-14072 - Finishes for Ground Signal Equipment STANDARDS DEPARTMENT OF DEFENSE MIL-STD-8 10 - Environmental Test Methods HANDBOOKS DEPARTMENT OF DEFENSE MIL-HDBK-454 - General guidelines for milita
10、ry equipment (Unless otherwise indicated, copies of the above specifications and standards are available from the Standardization Document Order Desk, 700 Robins Avenue, Building 4D, Philadelphia, PA 19 1 1 1 -5094.) 2.2.2 Other Government documents. drawings. and uublications. The following other G
11、overnment documents, drawings, and publications form a part of this document to the extent specified herein. Unless otherwise specified, the issues are those cited in the solicitation. - 2 Licensed by Information Handling ServicesDRAWINGS COMMUNICATIONS-ELECTRONICS COMMAND DL-SM-A-498900 - Antenna A
12、ssembly AS-1 304( )/W-30 (Copies of these drawings are available from Commander, U.S. Army Communications- Electronics Command, ATTN: AMSEL-LC-LEO-E-EP, Fort Monmouth, NJ 07703) 2.3 Non-Government publications. The following document forms a part of this document to the extent specified herein. Unle
13、ss otherwise specified, the issues of the documents which are DoD adopted are those listed in the issue of the DoDISS cited in the solicitation. Unless otherwise specified, the issues of documents not listed in the DoDISS are the issues of the documents cited in the solicitation. AMERICAN NATIONAL S
14、TANDARDS INSTITUTE (ANSI) AMERICAN SOCIETY for QUALITY CONTROL (ASQC) ANSUASQC 21.4 - Sampling Procedures and Tables for Inspection by Attributes (DoD adopted) 2.4 Order of precedence. In the event of a conflict between the text of this document and the references cited herein, the text of this docu
15、ment takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a speclfic exemption has been obtained. 3. REQUIREMENTS 3.1 First article samdes. The contractor shall furnish three preproduction samples for approval (see 4.2 and 6.2). 3.2 Construction. Des
16、ign and construction of the antenna shall be the contractors responsibility. However, the interface and dimensional requirements of DL-SM-A-498900 shall be met. 3.3 Cleaning. 3.3.1 Parts. After fabrication, parts shall be cleaned. Cleaning processes shall have no deleterious effect. Corrosive materi
17、al shall be removed c+mpletely before the parts are mounted on chassis, panels, etc. 3.3.2 Units. After assembly, units shall be cleaned thoroughly and shall be free from particles of solder, flux, and other foreign material. In addition, when necessary, such cleaning shall also be performed before
18、final assembly of the units. 3 Licensed by Information Handling Services. 3.4 Finish. protective. The hish shall be suitable for the environment in which the antenna will be used. Drawing DL-SM-A-498900 and MIL-F-I4072 may be used as guides. The use of Film B on type I surfaces for the final paint f
19、ilm is recommended. 3.5 Marking. 3.5.1 General. Mark directly or by label to include nomenclature, contract number, serial number, date, manufacturing code, part number, and national stock number. Use clear and legible lettering and a method of marking to withstand the operating environment. DL-SM-A
20、-498900 and MIL-M- 1323 1 may be used as guides. 3.5.2 Visibility. Whenever practicable, parts shall be to mounted that their identification markings will be readily visible with minimum disassembly of the equipment. 3.5.3 Serial Numbers. The unit(s) on this order shall have serial numbers. 3.6 Trop
21、icalization of materials. Materials shall be treated as follows: 3.6.1 Treating materials. Treating materials containing a mercury-bearing fungicide shall not be used. The contractor shall determine that the treating material is compatible with the material or surface to be treated. Selection of tre
22、ating materials shall be such that any increase in flammability of treated material will be held to the practical minimum. 3.6.2 Toxicity. Treating materials shall cause no skin irritation or other injury to personnel handling the treated material during fabrication, transportation, operation, or ma
23、intenance of the equipment, or during use of the finished items when used for the purpose intended. 3.6.3 Flexibilitv. Treatment shall not affect the flexibility of treated materials, to the extent that the equipment may fail to meet specified requirements when subjected to specified service conditi
24、ons. 3.7 Performance characteristics. 3.7.1 Output impedance (see 4.5.1). The unit(s) feed ports shall have a 50 ohm output impedance from 108 to 122 MHz. 3.7.2 Voltage standing wave ratio CVSWR) (see 4.5.2). The impedance of the antenna at the input connector of the cable assembly, shall be such th
25、at the VSWR referenced to a 50 ohm system does not exceed 5.0 to 1 throughout the frequency range of the antenna. The measurement shall be made with the antenna mounted on the ground plane of Figure 3. 3.7.3 Polarization (see 4.5.3). The antenna shall receive horizontally polarized signals. Receptio
26、n of vertically polarized signals shall be at least 12 dB down from the level of 4 Licensed by Information Handling ServicesMIL-PRF-55359A m ?77?, 2053886 545 m MIL-PRF-55359A(CR) horizontally polarized signals. The measurement shall be made with the antenna mounted on the ground plane of Figure 3.
27、3.7.4 Radiation pattern (see 4.5.3). The radiation field pattern shall be essentially omnidirectional in the azimuth plane and shall approximate a Cos 0 curve in the vertical plane. 3.7.5 (see 4.5.4). Antenna gain relative to an isotropic source shall not be less than -2 dB. 3.8 Operational inspecti
28、on. Each unit) shall be capable of meeting the specified test after applicable processes inspection and test have been completed to determine that each unit(s) on order is operable prior to packaging (see 4.9). 3.9 Interchangeability (see 4.8). Like units, and replaceable parts shall be physically a
29、nd functionally interchangeable, without modification of such items or of the equipment. Components of the antenna shall not be designed as matched units. Antenna half loops shall be completely interchangeable and shall perform as indicated in 3.8 and interface with all cable assemblies in DL-SM-A-4
30、98900. 3.10 Environmental conditions (see 4.6). The unit) shall meet the following environmental conditions. 3.10.1 Temperature-altitude (see 4.6.1). Antenna performance shall be as indicated for ambient temperatures from -54C to +95“C at altitudes from sea level to 70,000 feet. The antenna shall wi
31、thstand extended exposure to temperatures within the -62OC to +7 1 OC range. 3.10.2 Humidity (see 4.6.2). The antenna shall withstand relative humidity conditions in excess of 95% and shall be capable of satisfactory performance, within 1/2 hour after subjection to the test. 3.10.3 Vibration (see 4.
32、6.3). The antenna shall perform satisfactorily after subjection to vibration environments in accordance with the test of 4.6.3. 3.10.4 Shock (see 4.6.4). The antenna shall perform satisfactorily after subjection to a shock environment in accordance with the shock test of 4.6.4. 3.10.5 Acceleration (
33、see 4.6.5). The unit(s) shall withstand 6g steady state acceleration for one minute. - 3.10.6 (see 4.6.6). The unit(s) shall meet the performance requirements of this document when subjected to rain as encountered in service, with the base down, in accordance with the rain test (see 4.6.6). 3.10.7 S
34、alt fog (see 4.6.7). The unit(s) shall be exposed, in normal operation configuration, to salt fog for 48 hours and shall show no evidence of corrosion as evidenced by 5 Licensed by Information Handling Servicesany visible degradation that can be attributed to flaky, pitted, blistered or otherwise lo
35、osened finish. 3.10.8 Sand and dust (see 4.6.8). The unit(s) shall withstand exposure to sand and dust particles as encountered in desert areas. It shall show no evidence of corrosion as evidenced by any visible degradation of material and finish. 4. VERIFICATION 4.1 Classification of insuection. In
36、spection shall be classified as follows. a. First Article inspection (see 4.2). b. Conformance inspection (see 4.3). 4.2 First article inspection. The first article inspection shall be performed by the contractor. It shall consist of the inspection specified for Group A, Group B? and Group C (see Ta
37、bles I, II and III respectively). 4.3 Conformance inspection. The contractor shall perform the inspection specified in 4.3.1 through 4.3.4. This does not relieve the contractor of his responsibility for performance of any additional inspection which is necessary to control the conformance of the pro
38、duct and to assure compliance with all specification requirements. The Government will review and evaluate the contractors inspection procedures and examine the contractors inspection records. In addition, the Government, at its discretion, may perform all or any part of the specified inspection, to
39、 verify the contractors compliance with specified requirements (see 6.7). 4.3.1 Group A InsDection. Each unit shall be inspected for conformance to the inspections specified in Table I. Discrete lots shall be formed from units that pass this inspection. Factors of lot composition not defined herein,
40、 or in the contract or purchase order, shall be in accordance 6 Licensed by Information Handling ServicesI with ANSVASQCZl.4. Each lot shall be subject to sampling inspection, utilizing the procedures of ANSUASQCZ1.4. TABLE I. Group A inspection Inspection Inspection paragraph Requirement paragraph
41、Visual and mechanical 4.7 3.1 - 3.5 AS-1304( )/ARN-30: Base assemblies (less top) Base assemblies (assembled) AS- 1804( YARN-30: (assembled) Electrical: Voltage standing wave ratio Polarization 4.5.2 3.7.2 4.9 3.8 Operational inspection 4.5.3 3.7.3 4.3.2 GrouD B inspection. Group B inspection shall
42、normally be performed on inspection lots that have passed Group A inspection and on samples selected from units that have been subjected to and met-the Group A inspection. This inspection shall conform to Table II. TABLE II. Group B inspection Inspection I Requirement paragraph I Inspection paragrap
43、h 1 I Output impedance Interchangeability 4.5.1 3.7.1 4.8 3.9 7 Licensed by Information Handling Services MIL-PRF-55359A U Q99993b 2153889 254 m MIL-PRF-55359A(CR) 4.3.3 Group C inspection. Group C inspection shall be performed on units that have passed Group A and Group B inspection. The inspection
44、 shall consist of the inspections specified in Table III. Samples shall be selected in accordance with 4.3.3. l. TABLE III. Grow C inspection Inspection Subgroup I: Temperature/altitude Humidity Vibration Radiation pattern Gain, antenna Subgroup II Shock Acceleration Rain Sand and dust salt fog Requ
45、irement paragraph 3.10.1 3.10.2 3.10.3 3.7.4 3.7.5 3.10.4 3.10.5 3.10.6 3.10.7 3.10.8 Inspection paragraph 4.6.1 4.6.2 4.6.3 4.5.3 4.5.4 4.6.4 4.6.5 4.6.6 4.6.7 4.6.8 4.3.3.1 Sampling for group C inspection. Units selected for each Group C inspection shall be selected without regard to their quality
46、 in accordance with the following: 4.3.3.1.1 Subgroup 1. For this subgroup, two units from the first 25 production units shall be selected for the first Group C inspection. For subsequent Group C inspections. two units each month shall be selected. 4.3.3.1.2 Subgroup II. For this subgroup, two units
47、 from the first 25 production units shall be selected for the first Group C inspection. For subsequent Group C inspection, two units every two months shall be selected. 4.3.3.2 Order of inspection within group C. Group C testing shall be performed in accordance with Table IV in the sequence shown. T
48、he items shall be cleaned, dried and refurbished if required before proceeding to the next test. TABLE IV. Group C inspection SUBGROUP I SUBGROUP II Temperature/altitude Rain Radiation pattern Acceleration Humidity salt fog Gain, antenna Sand and dust Vibration Shock 8 Licensed by Information Handli
49、ng Services4.3.4 Reinspection of conforming group C samDle units. Unless otherwise specified, simple units which have been subjected to and passed Group C inspection may be delivered on the contract or order, provided all damage is repaired, cleaned of all foreign matter, and the sample units are resubjected to and pass Group A inspection. 4.4 Standard test conditions. Unless otherwise specified, tests shall be performed under prevailing ambient conditions of temperature, pressure and relative humidity. The following test conditions shall apply when specified herei
