1、NIL-I-22668A 5 m 9777706 0151375 2 MI L-I-22668 A (WEP) 15 MARCH i963 - SUPERSEDING M I L-I - 2 2 6 68 (WEPI 20 OCTOBER 1960 KiLITAY SPECIFICATION !ibis specification has been approved by the Bureau of Naval Weapons, Department of the Navy. 1. SCOPE 1.1 shall provide communication, navigation, and i
2、dentification facilities required in naval aircraft to carry out military missions. Scope - The Bectronic Centrals covered by this specification 1.2 Classification - The Integrated Electronic Centrals shall be of three types which together shall include the folloiring equipments: - Item Name Designa
3、tion 1 Receiver-Transmitter, Radio RT$, Aircraft, Installation of Electronic Equipment, Aircraft, General Specification for Testing, Enviro;mental, Aircraft Electronic Equipment Interference Control Requirements, Air craft Equipme nt Control Panel: Aircraft Equipment, Rack or Console Mounted Meter,
4、Time Totalizing Radar Identification Set AN/APX-6B Coder Group A.N/APA-89 Preparation for Delivery of Electronic, Electrical, and Electro-Mechanical Equipment and Associated Repair Parts Test Procedures; Preproduction and Inspection, for Aircraft Electronic Equipment, Format for Nomenclature and Nam
5、eplates for Aeronautical Electronic and Associated Equipment Receiving Set, Radio AN/AxR-b adio Set AN/ARC- Electronic Modules, General Specification For Amplifier-Power-Supply-Receiver AM-2310/ASQ Control, Radio Set C-27-90/ARC; Indicator, Frequency Channel D-758/ARC; Mounting . MT-2141/ARC and Swi
6、tching Unit s-629/mc 3 Licensed by Information Handling ServicesMIL-I-22bbA 58 797770b OL5L37 141-1-22668() (im) MIL- c- 22671 rm-c-22672 MIL-M-22673 MIL-M- 22674 MIL-R-22677 MIL-R-22678 MIL-R-22679 MIL-E-23094 SWARDS Mili taq MIL- STO-129 MIL- STD- 704 Control, Radio Set C-3146/MQ Coder-ReceiverrTr
7、ansmitter KY-308( IC) /ASQ Mounting-Plenum MT-2243/ASQ-56 Momti ng- Plenum 28-volt DC, Ils-volt Single Phase AC, or ll5/2OO-volt Three-phase AC, or combinations Meter, Time Totalizing vtiniature 400 Cycle, Digital 2.2 Availability of Documents - (1) tien requesting specifications, standards, drawing
8、s, and publications refer to both title and number. this specification and applicable specifications required by contractors in connection w2th specific procurement functions may be obtained upon application to the Cornanding Officer, Naval Supply Depot, Code DCS, 5801 Tabor Avenue, Philadelphia 20,
9、 Pennsylvania. Copies of 3.1 Parts and Materials - In the selection of parts and materials, fulfillment of major design objectives shall be the prime consideration. so doing the following shall govern: j (1) Parts and material requiremenkc shall conform to Specification NIL-E-O. Licensed by Informat
10、ion Handling ServicesMIL-I-2266A 58 7779706 OL5L377 T m-1-22668() ( MEP) (2) Honrepairable subassemblies, as outlined in Specification MIL-E-5400, shall be used when Practicable. The general size of the subassembly %id the amount of circuitry to be included therein shall be approved by the procuring
11、 activity. Ion- repairable subassemblies must be reliable. A mean- time-to-failure of more than 5000 hours should be the goal of each. (3) When previously produced models of these equipments did not use nonrepairable subassemblies, the design shall not be changed to employ nonrepairable assemblies v
12、ithout the approval of the procuring activity. 3.1.1 Ponstandard Parts and Material Approval - Approval for the use of nonstandard parts and materials shall be obtained as outlined in Specification IIL-EO. 3.1.2 Electron Devices - Electron tubes, transistors and diodes shall be chosen and applied, a
13、nd the complements reported as outlined in Specification IrIIL-E-4682. The complement report must be submitted to the procuring activity for review and apprwal prior to preproduction testing. 3.2 Design and Construction - 3.23. General - The centrals shall conform with all the zpplicable requirement
14、s of Specification lCL-E-5bO for design, construction, and work- manship unless otherwise specified herein or in the individual equipment specifications. *3.3.2 Total Weights - The total weight of each central, excluding cables, shall be a minimum consistent with good design and shall not exceed 250
15、.0 pounds for the AU/ASQ-57 250.0 pounds for the. AN/ASQ-57 and 284.4 pounds for the AN/ASQ-58. “3.2.3 Modular Construction - The use of modular space assignment and construction of easily disconnected plug-in subunits or component assemblies shall be in accord with Specification MIL-E-lgOO where po
16、ssible. The following considerations shall apply where practicable; except that for the m-308( *)/AS shall be provided to the greatest extent practicable for ease of field testing and maintenance. 3.2.10 Nomenclature and Nameplates - Nomenclature assignment and name- plate approval for equipment ide
17、ntification shall be in accordance with Specification IIIL-N-o. (See 6.8) shall conform to the applicable requirements of Specification KCL-C-678i. The configuration of all control panels must be approved by the procuring activity prior to preproduction testing. *3.2.ll Control Panels - Ali rack or
18、console mounted control panels A3.2.E Standard Conditions - The follovhg conditions shall be used to establish normal performance characteristics under standard conditions and for making laboratory bench tests. Temperature Altitude Nomal ground Vibration None Humidity Input Power Voltage Room Ambien
19、t (30 + 10C) Room ambient up to 90% relative humidity U5 -E 1.0 v, 380-420 cps, 3# 27.5 + 0.5 v DC 110 lbs. per hour . 26 +-leo v, 380-420 cps, l# System Cooling Air *3.2.13 Service Conditions - The centrals shall operate satisfactoriiy under any of the environmental conditions or reasonable combina
20、tion of these conditions as specified in Specification MIL-E-5kOO for the Classes of Equipment as specified herein unless otherwise specified in the individual equipment specifications: Licensed by Information Handling ServicesReceiver-Transmitter, Radio Receiver-Transmitter, Radio Decoder, Pulse Co
21、der-Receiver-Transmitter Arnplif ie %-Power- Supply-Re ce iver Antenna Control, Radio Set Mounting-Plenum Control, Radio Set Switching Unit Mounting Indicator, Frequency Channel Contyol, Radio Set Mount i ng-Plenum Control, Radio Set RT-542/ASQ Class 2 RI-541/AS-R-7893. Licensed by Information Handl
22、ing Servicesi4 Licensed by Information Handling Services- , - I. MIL-I-22bbA 54 M 97777Ob 0151387 2 M _I ._-I-.-.-.-I . _._-I-.I . . . .-. I_ - ._. . . . - _-_.-._ . . . . . . . . . . -. ._. - . -. . -_I- I . _._.I . ._.-I.-I. -c -.-. -.-.-I . - . . . 17 . I Licensed by Information Handling Services
23、. _._ . .-. :II: ) . , flIL-1-22668A 58 9999906 0151392 2 -._ . rm-:7 -.-.-._. I Emmination of Product - Each equipment shall be examined care- f.:-:;: ;-.:; ,-.- MILI- 22668(A)(WEP) .-.- 4.4-1.1 F:=:=- . fully to determine that the material and workmanship requirements have been met. . . 4.4.1.2 Op
24、erational Test - Each equipment shall be operated long enough to permit the equipment temperature to stabilize and to check sufficient characteristics .- record adequate data to assure satisfactory equipment operation. Manufacturing Run In Test - Each equipment shall be operated under, the condition
25、s specified herein for a period of 6 hours without failure. A failure shall be defined as anything which causes malfunctioning of the equipment. Only those adjustments will be permitted which can be made by using such controls and and adjustments that are accessible to the operator during the normal
26、 use of the equipment. and . 4.41.3 -.-.* .I - ._-.-I . - I -.-.- 1. - .-. i E“I“= - ,: . . .- . .- - .- -. .- “ . . . . ._-_-.- . i :-. . b . . . . .- . . , . . . ,.II -, - L I. ,_._- _.- ,.-.-.-.-. I._ .-. -.- I . PI-.*_ Temperature Ambient room Humidity Ambient room Vibration -ri-r-.- E: . .- *u.
27、- 6- - - -. -. *.- .i .- - *.-. - , . “ -. . Any selected frequency with the range of -E-:!-%; F- 20 to 30 cps (excluding resonant points) and g;zsg.s . - . . - . - -.- . a minimum amplitude of 13 gs ,I._ . . C-.- - .- . .-. .- I The equipment shall be vibrated (without vibration isolators) for a pe
28、riod of 10 minutes ._ - , . -. . -.-._ . prior to the beginning of the 6-hour period of operation. Where feasible, the equipment shall be owrated during this vibration period for the purpose of detecting flaws and ance is not necessarily required during me vibration period. should be vertical to the
29、 normal mounting plane for 5 minutes and lateral to that plane for 5 minutes. Where it is not feasible to vibrate the equipment in 2 directions the vertical direction shail be used. During the 6-hour period of operation following the 10-minute vibration period, the equipment shall be mechanically cy
30、cled periodically through its various phases of operation. Should a fai1ur.e occur, it should .be repaired and the test started over, except that the 10-minute vibration period need not be ,-A p . g;:. : imperfect workmanship. Operation within the specified limits of satisfactory perform- . c: :;:;:
31、;:-: c:-.;. .- ._.- . . The direction of vibration . . . L. . . . . . _._-_-_ fi:=,:f:z r _-._- .-. . !:x:-:z.:z ,.-._ -*, I Licensed by Information Handling ServicesNI -. . -. -. - - .-.I.-.-.-. .- . _ _ I - _ . -.- . . . . -. -. . I.I . - . ._- . . . . i . . I . . - . -. . ._.-_ -. . .- - . -.- .
32、- - i . ,- . -.- _-II_- -_I- - -.- -.-I- -._-. _*-.-.- .-.- . . I . _I- .-_-.- , _. . . “ . _-._ . -.-.-. .- .- .- I _.-. . “ . _-. - -.-._._- _- - -.-.I-.-.-I -.-.- . . . . . . , . . -._. . . . I . . . - . I.-.-.- . I_._ . I.-._ . .-. . - -i . - - . . . . . _.- . -1 . . . -_ . - . - . i I for sampl
33、ing tsts shaj . _ ._ . . 3 T -. - .- i- -.- MILI- 22668(A)(WEP) VIL-I-22668A 58 = 7997706 0353373 Y . . -.-_- - . : . . Sampling Tests - Equipments and. centrals selected ihr sampling,. irst have passed the individual tests. Equipments and centrals shall be sel- sts. by the government inspector in a
34、ccordance with the foll0Wi-X: ,(sampling tests shaU not be conducted unless Reliability Assurance tests of 4.4.3 are deleted by contractual action.) Quantity of Equipments . Quantity of Equipments . . Quantity of Centrals - or Centrals Offered Selected for Sampling .Selected for for Acceptance Tests
35、 Sampling Tests - _.I - . 1 B 1 1 One for each add-: itional 1.or fract- ion thereof, h 1 .: =. Next 75 . -. . ,.rxt 1GG Om for- lTsF-Specffed-in 3.24.4 or referenced s9ecj.f ications ap-;ly. *4.4.3.3 L_ength of Heat portion of Cycle - After stabilization at the high temperature limit required by th
36、e test level, the equipment shall be operated 4 hours during each cycle. Specification MIL- R- 23094) *4.4.3.4 Performance Characteristics to be Measured - (1) UHF Communications - RT-542 and RT-559 Characteristic Receiver Sensitivity Audio Capability i. RF Power Output Modulation Capability (input
37、to clipping) Tone Modulation Capability Side Tone Level Specification requirement Standard 5uv/lOdb Service 20uv/10db Standard not less than 250 mw Service not less than 67.5 mw Standard not less tnan Service not less than 16 w 9w Not less than 80% 70 - 100% Standard not less than 250 mw Service not
38、 less than 75 mw A c cept an ce requirement (if lower) 20 uv/lOdb Not less than 67.5 mw Not less than 9 w Not less than 75% 70 - 100% Not less than 75 mw 20 c Licensed by Information Handling ServicesMIL-I-22bbA 58 m 9797706 0353375 m MIL- I- 22668 (A) (WE P) (2) Receiver/ADF/Power Supply - AM- 2310
39、 and AS- 909 Acceptance Characteristic requirement (if lower) Specification requirement Receiver Sensitivity Standard 6uv/lOdb 1 uv/lOdb Service ldv/lOdb Standard not less than 250 mw 67.5 mw Service not less than 67.5 mw Not less than Audio Capability Power Supply Vo It age s 430 VDC 275 VDC 250 VD
40、C 130 VDC 140 VDC -180 VDC 370 to 505 241 to 302 218 to 278 114 to 142 137 to 143 -148 to- 207 360 to 515 230 to 310 210 to 290 110 to 145 135 to 145 140 to- 215 ADF 10Q cps Inverter ADF Motor Control Not less than 2.7 VAC Not less than 75 VAC Not less than 2.7 VAC Not less than 75 VAC Not more than
41、 12 ADF RF Operational Test Not more than 6 seconds for antenna to assume new heading 180“ removed from previous heading s e conds (3) TACAN -KY-309 and RT-541 Acceptance Characteristic . requirement (if lower) Specification requirement Distance Accuracy and *(o. 2 mi +O. 1%) for * (O. 3 mi +o.i$)fo
42、r Sig Sensitivity Sig levels from -117 levels from -114 to -30 to -30 dbw dbw Bearing Accuracy and *2“ with Sig levels from -113 to -30 dbw. h2.5“ with Sig levels from -110 to -30 dbw Sensitivity Licensed by Information Handling ServicesAcceptance r equir eme nt (if lower) 1030 f 1.omc 80 dbv 31.2 u
43、sec 5rt. 2 usec 8 except that when a production sample equipment is requested and submitted to the procuring activity f9r test then the first equipment specified below need ot be s-elected or subjected to this test, -(EuipEeZbs- Or centralS-which have - successfully passed the sampling- hsts or spa
44、ciai, tests The life test The life test sample shall be may-be -selected for 1.Se tests.) Quantity of Equipments Offered for Acceptance Quantity to be Selected For Life Test First 25 Next 175 Next 300 1 1 1 1 for each additional 500 or fraction thereof I l 4.5.1 Test Conditions - The life test shall
45、 be conducted under the follo Il Temperature Altitude Humidity A. C. Voltage D. C. Voltage Normal room Normal.ground (O - 5000 ft.) Room ambient 115 A 5 volts (at lowest applicable frequenc 27. O A 2. O volts 4.5.2 Test Periods - The test may be run continuously or intermittently. Any period of oper
46、ation shall be of sufficient duration to permit the equipment temperature to stabilize. Periodically, the equipment shall be turned on and off several times and put through its various phases of operation. . Licensed by Information Handling Services4.5.3 Performance Check - At armroxirnatelv and the
47、 fact-that the Government may have formulated, furnished or in any way supplied the said drawings, specifications, or other data is not to be regarded by implication or otherwise as in any manner licensing the holder or any other person or corporation, or conveying any rights OF permission to manufacture, use OP sell any patented invention that may in any way be related thereto. 28 Licensed by Information Handling Services
