1、MIL-R-24OO8( XEP) 23 January i964 PIILITARY SPECIFICATION RECEIVEil , RADIO R-1047 A/ A This specification has been approved by the Bureau of Naval Weapons, Depa 28-Volt DC, 115- Volt Single Phase AC, or l5/200 Volt 3 Phase P.2, or Combinations 2.2 Avialability of Documents - When requesting specifi
2、cations, standards, drawings and publications, refer to both title and number. Copies of this specification and applicable specifications required by contractors in connection with specific procurement functions may be obtained upon application to the Comiianding Officer, Naval Supply Depot, Code CD
3、S, 5801 Tabor Avenue, Philadelphia 20, Pennsylvania. 3.1 materials, fulfillment of major design objectives shal be the prime Parts and Materials - In the selection of parts and consideration. In so doing the following- shall govern : (1) (2) Parts and materials requirements shall conforni to Specifi
4、cation MIL-E i15 volt-amps; Category B 28 volts E; .75 amperes continuous, 5 amperes during channel selection; Category B 3 . 2.13 2 Output - The receiver shall be capable of continuously providing 225 volts DC 2 10 per sent at 30 milliamperes 2 20 per cent tube plate output power for either the AM-
5、608/ARA-25 or AJv-1777/ ARA-25A Electronic Control Amplifiers. rippie (RMS). This voltage shall contain no more than 0.50 volts 3.2.U Internal Adjustments - Adjustments shall be kept to a minimum and shall be easily accessible upon removal of receiver dust cover. All adjustments shall be factory ali
6、gned and preset prior to delivery so that the receiver is operating- satisfactorily to the requirements herein. Alignment shall be, stable for a minimum of 400 normal operation hours. which is readily removable without attachment to wiring or other obstructions. Dust cover shall provide adequate san
7、d and dust protection as specified by 3.2.15 Dust Cover - An external dust cover shall be supplied MIL-T-54-22. 3.3 Performance - Unless otherwise specified, values set forth to establish the requirements for satisfactory performance apply to Provided by IHSNot for ResaleNo reproduction or networkin
8、g permitted without license from IHS-,-,-performance under both stafidard and extreme service conditions. reduced performance under the extreme conditions is acceptable, tolerances or values. setting forth acceptable variations from the performance under the standard conditions will be specified. Wh
9、en 3.3,s. Operation - The receiver shall be compatible with, match imrsedance with and accept the voltage and impedance output levels from thg ES-578/4RP25 or AS-j78!/hRA-25 antenna approved-test The government inspector and the procuring activity 4.2.1.1 %tremes of Potential and Frequency - The equ
10、ipment shall be subjected to operating tests with the electric power having combinations of applicable frequency and voltage extremes permitted by MIL-STD-704 for the specified conditions. 4.2.1.2 The contractor shall submit all data collected in conducting these tests to the procuring agency or rev
11、iew and approval. This data shall include a list of all electrical and electronic parts giving their specified voltage, current and temperature rathg and the applied circuit voltage, current and ambient and surface temperatures. The ambient and surface temperature shall be obtained under the extreme
12、 high temperature operating condition. as part of the preliminary parts list. Such data on parts may be included 4,202 Service Approval Tests - At the completion of the contractorts demonstration tests and when requested by the procuring laboratory for additional testing. This additional testing may
13、 consist of duplicating tests previously conducted and such other tests as are deemed necessary to determine compliance with all applicable design and activity, the equipment shall be delivered to a specified government .? Provided by IHSNot for ResaleNo reproduction or networking permitted without
14、license from IHS-,-,-JIIL-R-24.008 (HEP) perf orrtance requirenients , 4.2*2.1 Accessory Material - In addition to the complete equipment submitted for service approval tests, the contractor shall also submit the accessory material and design and test data specified in Specification lm4- however, it
15、 may be reworked by the contractor and submitted for acceptance as a production equipment. Eo production equipments shall be delivered prior to the The approved preproduction model will be returned to the sontractor The preproduction model shall not be considered as one of Prefabrication of producti
16、on equipment 4.2.5 Equipments supplied under the contract shall in all respects, including design, construction, workn;anship, performance and quali,ty, be equivalent Lo the approved preproduction sample. shczll be capable of successfully passing the same tests imposed on the preproduction saniple,
17、Evidence of non-compliance with the above shall constitute cause for rejection and for equipment already accepted by the governrrient it shall be the obligation of the contractor to make necessary corrections as approved by the procuring activity. Each equipment 4.3 Production Sample Tests - When re
18、quested by the procuring activity, one ciquipinent shall be selected from the first LO production equipments submitted for acceptance and sent to a designated government laboratory for teats, governmen% inspector after the equipment has successfuiy passed all individual tests . The equipment shaU. b
19、e selected by the 4*3 Scope of Tes= - This equipment may be subjected to any and aU tests the procuring activity deems necessary to ensure that the production equipment is equivalent to the previously approved preproduction saniple in design, construction, workmanship, performance and quality and th
20、at it meets aU applicable reqxirernents. 4.3.2 Production Sample Approval - Approval of the production sample shaL1 be by the procuring activity upon satisfactory completion of Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Provided by IHSNot for Re
21、saleNo reproduction or networking permitted without license from IHS-,-,-k.4. 1, 2 Operational Test - Each equipment shall be operated long enough to permit the equipment temperature to stabilize and to check sufficient characteristics and record adequate data to ensure satisfactory equipment operat
22、ion, 4m4*1*3 Manufacturing Run-in Test - Each equipment shall be operated wider the conditions specified herein for a period of 6 hours without failure, malfunctioning of the equipment. which can be made by using such controls and adjustments that are accessible to the operator during the norma use
23、of the equipment. A failure shall be defined as anything which causes Only those adjustments will be permitted Temperature Ambient room Humidity Ambient room Vibration Any selected frequency within the range of 20 to 30 cps (excluding resonant points) and a minimum amplitude of - +3gts The equipment
24、 shal. be vibrated (without vibration isolators) for a period of 10 minutes prior to the beginning of the 6-hour period of operation. .Where feasible, the equipment shal be operated during this vibration period for the purpose of detecting flaws and imperfect workmanship. Operation within the specif
25、ied limits of satisfactory performance is not necessarily required during the vibration period. The direction of vibration should be vertical to the normal mounting plane for 5 minutes and lateral to that plane for 5 minutes, tihere it is not feasible to vibrate the equipment in 2 directions the ver
26、tical direction shall be used, following %he 10-minute vibration period, the equipment shall be mechanically cycled periodically through its various phases of operation. failure occur, it should be repaired and the test started over, except that the 10-minute vibration period need not be repeated wh
27、en it is certain the failure was not a result of the vibration. correct5ve action shaU be taken to eliminate this defect from future equipment. specified above may be composed of two 3-hour periods to conform with standard working hours. During the &hour period of operation Should a Should repetitiv
28、e failures occur, A record shall be kept of all. failures. The &how period 4.k.2 equipnients which have successful2y passed the individual tests. shall be selected for sampling tests by the Government Inspector in accordance with the following: Sampling Tests - Sampling tests shdi be conducted on Eq
29、uipments Quantity. of Equipments Offered for Acceptance Quantity to be Selected For Sampling Test First LO 1 Next 50 1 12 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Provided by IHSNot for ResaleNo reproduction or networking permitted without lic
30、ense from IHS-,-,-ldd 5 - Failure Crite - In addition to the requirements of Specification NIL-R-23094, the following requirements shall be used to determine when a failure has occurred during the test: (1) Whenever perf ormance characteristics fall below the acceptance requireifient at least one fa
31、ilure has occurred. that several parts deteriorated, each shall be counted a failure, unless one caused the other parts to fail. If subsequent analysis reveals 4.4e3.6 such maintenan Preventive Maintenance - During the period of the tests 5 procedures may be performed as are possible for the operato
32、r during normal use of the equipment and as are described in the maintenance instructions, procuring activity prior to acceptance for re3iability assurance tests. Such procedures shall be approved by the 4.4.4 Special Tests - Special tests shall be conducted on a quantity of equipments for the purpo
33、se of checking the effect of any design or material. change on the performance of the equipment and to assure adequate quality control, selected from equipments previously subjected to the sampling tests. The equipment selected for special tests may be 4*4*4*1 Specia Tests Schedue - Selection of equ
34、ipments for special tests shall. be made as follows, except that when a Production Sample is requested and delivered to a government laboratory for test (see 4,3) the requirement-for a special test on an early production equipment may be omitted: (1) On an early production equipment. (2) On an early
35、 equipment after an engineering change. (3) Whenever failure reports or other information indicate additional equipments should be tested, (This will be determined by the procuring activity#) 4*4*4.2 Scope of Tests - Special tests shall consist of such tests as are approved by the procuring activity
36、, approved for the preproduction and sampling tests shaL1 be used where applicable. When not applicable, the contractor shall prepare a test procedure and submit it to the procuring activity for approval prior to conducting the %ests, As a minimum, the following tests shall be made, except that for
37、those equipments selected as a result of design changes and failure reports, only those tests required to check the characteristics in question need be conducted: (1) Temperature - Altitude Tests (2) (3) Humidity Tests Test procedures previously Vibration Test (60 minutes eycling in each of 3 planes
38、) - - - _- _- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-iO8 58 .3 7997706 0152756 MIL-R-24008 ( WEP ) 4.4.5 Equipment Failure - Should a failure occur during either (1) (2) the sampling or special tests, the following action shail be take
39、n: Determine the cause of failure. Detemnine if the failure is an isolated case or design defect. Submit to the procuring activity for approval, proposed corrective action intended to reduce the possibility of the same failure(s) occurring in future tests. (3) (4) Where practicable, include a test i
40、n the individual test to check all equipment for this requirenent until reasonable assurance is obtained that the deect has been satisfactorily corrected. Life Test - The contractor shall furnish all samples 4* 5 and shall be responsible for accomplishing the life test. of 300 hours duration and sha
41、ll. be conducted on equipments that have passed the individual test. conditions specified in 4.5.1. The life test sample shall be selected by the government inspector in accordance with the following, except that when a production sample equipment is requested and submitted to the procuring activity
42、 for test the first equipment specified below need not be selected or subjected to this test: (Equiprnents which have successfully passed the sampling tests or special tests may be selected for life tests.) The test shall be The life test shall be performed under the Quantity of Equiprnents Offered
43、for Acceptance Quantity to be Selected For Life Test First 25 1 Next 175 1 Next 300 1 1 for each additional 50 or fraction thereof When a defective unit is.found, acceptance of any of the units in the group shall be withheld until the exten and cause of failure have been determined and appropriately
44、 corrected. Return to one sample out of the first 25 items and proceed as indicated when inspection is resumed. .4.5.1 Test Conditions - The life test shall be conducted under the following simulated service conditions: Provided by IHSNot for ResaleNo reproduction or networking permitted without lic
45、ense from IHS-,-,-MIL-R-24008 58 939990b 0352757 T Temperature Normai room Altitude Normal ground (0-5000 ft.) Humidity Room ambient A. C, Voltage ll5 5 5 volts (at lowest applicable frequency) D. Ce Voltage 27.0 2 2.0 volts 4.5*2 Test Periods The test may be run continuously or Any period of operat
46、ion shall be of sufficient duration intermittently. to permit the equipment temperature to stabilize. equtpment shall be turned on and off several times and put through its various phases of operation. during the tost, a lbted perforrmnce check shall be made, check proposed by the contractor shall b
47、e subject to approval. by the procuring activity, 4.5.4 the performance of the equiprnent, making particular note of any deficiencies or failures, replaced and the operation reswiied for the balance of the test period. record shall be kept of all failures throughout the test, including ail tube fail
48、ures . Periodically, the 4.5.3 Performance Check - At approximately 8-hour intervals The performance -7 Test Data .I The contractor shall keep a daily record of In the event of part failures, the defective part shall be A This record shall. indicate the following : (1) Part type number (2) The circu
49、it reference symbol number (3) The part function (4) Name of the manufacturer (5) Nature of the failure (6) The number of hours which the part operated prior to failure. 4*5*4*1 Failure Rep& - In the event of a failure, the govermient inspector shall be notified imediately, submitted to the procuring activity upon completion of the test. reportz the. contractor shall propose suitable and adequate de
