1、MIL-C- 2 8 9 89 B (MC) 7 December 1982 SUPEFGEDING MIL-C-23989A (PIC ) 26 Fe?xuary 1973 - 14ILITAHy SPECI FI CATIBJ CDUPLER, RITENCJA: CU-2064/GRC-193 This specification is approved for use by the Marine Corps, Department of Navy, and is available for use by all Departments and Agencies of the Depar
2、ant of Defense. 1. SCOPE 1.1 2. APPLICABLE maJmms 2.1 Government documents. This specification overs the requirements for me type antenna ampler. 2.1.1 Specifications , standards, and han-s. Unless otherwise specified , the following specifications, standards, and handbooks for the issue listed in t
3、hat issue of the Department of Defense Index of -Spcifications and Standards (DoDISS) specified in the solicitation form a part of this specificatim to the extent specified herein. SPECI FICATIOIJS MILITARY . MIL-7-704 - Treatment Ard Painting of Xateriel. . MIL-t4-13231 - Ilarking of Electronic Ite
4、ms. MIL-P-15024 - Plate, Tqs arid Bands For Identification of Equipment. MIL-E-16400 - Electronic , Interior Cornunication and Navigation Equipment . MIL-E-17555 - Electronic and Electrical Equipment, Accessories, and Repair - MIL-A-28983 . - Amplifier, Radio Frequency: AM-6515/GRC-193 , MIL-E-52793
5、 - Enamel, Alkyd, Canouflage Naval Ship and Shore; General Spcification. Parts, Packaging and Packing Of. MIL-SrD-108 - Definition Of Ard Basic Requirement For Enclosure For Electric And Electronic Equipment. Beneficial comments (recommendations, additions, deletions) and any pertinent data which my
6、 k of use in improving this documnt should be addressed to: Canmandant of the Marine Corps, Headquarters Marine Corps, Code UR-1, Washington, D.C. 20380 by using the self -addressed Standardization i%cumnt Improvement Proposal (DD Form 1426) appearing at the erd of this document or by letter. FSC 58
7、20 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-flL-C-2787B 58 W 777770b 0382477 O fi fliIi;-C-28939l3(MC) - IlIL-SriD-129 - * 11IL-SJ!D-242 - * l4IL-Srn-4!54 - - IIIL-STD-4Gl - . MIL-STD-462 - MIL-STT)-463 - MIL-SFD-470 - . IIIL-3IW471 - * IIIL-S
8、1D-781 - * flIL-m3TD-310 - MIL-STD-1331 - - !IIL-SrD-12(31 - . lG3114 - IIILITARY Marking for Shipmnt And Storage. Electronic Ecpiprent Parts (Selected Standards 1. Standard Requirements for Electronic Equipment. Electromagnetic Ehission and Swceptibility Requirements for the Control of Electromagne
9、tic Interference. Electrcmgnetic Interference Characteristics, :leasurmnt of Definition And System Of Units, Electromagnetic Interference Technology. flaintainability Program Requirements (Fm Systems and Ecpip- ment 1 , Maintainability Demonstration. Reliability Tests, Exponential Distribution. Envi
10、ronmental Test Ilethods. Test Rprts, Preparation of Internal Transient Ccntrol For Solid State Peer Supplies, Connector, Receptacle, Electric, Serie 1, Solder Typ?, Jam Nut !fainting Nut, Dqonet Capling. Maintainability Prediction (Copies of swcif ications, standards, handhks, drawings, and publicat
11、ions required by manufacturers in connection with specific acqdisition functions should be dtained frun the contracting activity or as directed by the contracting officer). specification and the references cited herein, the text of this specification shall take precedence 2.1.2 Order of precedence.
12、In the event of a conflict between the text of this 3. mQUIHEMETPj?c 3.1 First article. ance, the contractor shall furnish 10 first articles for determination of conformance t;o ais specification, of the first articles by the procuring activity shall not relieve the contractor of his lune puder, Tk
13、cocpler shall automatically tune with a mnstant forward 3.3.10 Tuning. Tk mupler chal1 automatically tune within a tim period of Upn reaching the “hone“ psition, the Tming shall mt Chultaneously, 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-
14、C-28989B CMC) hl o:l I hl . - .- -I . . - _I.- -_- _I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.3.11 Removal of rf signal. Given a tunecl condition at any frequenq frOrn 2 to 30 1111z, upm removal of the associated transrnitters rf signal, it
15、 shall be possible to reapply the cam rf signal (at the san-e frequency) without initiating ww cycle, 3.3.12 Efficiency. CNth the impedance specified in Table I, the equipmnt shall. automatically tune and provide a coupler unit rf inpt to output efficiency of mt less than than specified in Table I.
16、The couple shall be designed to maintain the vsx to not greater than 1.4:l with minor changes in the antenna impedance and changes in the operating frequency of zl kilohertz (kHz1 once the coupler is tuned, prevents damage of the associated transmitter due to any mismatch condition where the vair is
17、 rot less than 2:l. ard at the cam tirne disrupt the transmitter key disable line. The circuit shall be enabled only in the tuned de of operation. capability of masuring the forward and reflected pwer shall be incorporated into the cisupler rf input circuit with the dc leads available at the control
18、 line receptacle for use with external meters. shall be comptible with the mtering requirements of the amplifier specified in 3.3. 3,3.13 Surveillance. 3.3.14 High vsx. The coupler shall be provided with a circuit which automatically This condition shall automatically fault the coupler 3.3.15 Voltag
19、e standing wave ratio monitoring. A directional coupler with the The sensitivity and source impedance 3.3.16 Fault circuitry, 5% prevent damage to the coupler and the associated eqliiprxnt, the fault circuitw shall provide protection whenever tuning or haning does not occur within 10 seconds, and at
20、 which tim it shall produce a fault signai for external use. . 3.3.17 Cervo amplifiers, Ik balancing of servo amplifiers shall be necessary at any tim to maintain performance. they shall be directly interchangeable. interlocking to prevent shorting of the gxxler supply and damage to the servo amplif
21、ier . If more than one servo amplifier is used, WE servo amplifiers shall have sufficient 3.3.18 Servo motors. High reliability dc torque Qp mtors shall be useil. 3.3.19 High per rf switching. Any hot switching of high-power rf circuits shall be acmiplished by mans of hemtically sealed relays. 3.3.2
22、0 Amplifier to coupler interface. The coupler shall provide the following control signals for use with the associated amplifier: not ready to accept rf pwer input, or primary k power is witched OFF. (a) Transmit inhibit - open for ilormai operation, ground when the coupler is Fault - ground when a c
23、oupler fault is present, open normally. (b) (c) (d) Direct current analog of forward pwer. Direct current analog of reflected pwer. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-IL-C-23939B (PIC ) (e) cperation. Ready - ground when coupler has tu
24、ned and is ready for normal transmit Tk coupler shall accept and operate with the following control signals: (a) Primary Power +26.5 Vdc (nominal primary power supply) (b) System dc ground (c) Keyline - ground for transmit rrode of operation (d) (e) Tune Start - momentary ground pulse whenever a fre
25、quenq digit is changed. Shield ground - ground connection to the shield of the interconnection cable. ( f 1 Blower +26.5 Vdc (9) Ccupler on - 26 Vdc (mminal) through 3.3 (h) (i) Power amplifier (pa) P4eter ground return Fan Test - +26.5 Vdc energizes external blower 3.3.21 Receive only. The coupler
26、shall have relays to bypass the variable tuning network. condition, the elements shall be bypassed. from the antenna to be conducted through the aupler to the rf input connector of the coupler with a niinimum of attenuation. When 110 primary pwer is applied or when the coupler is in the untuned This
27、 condition shall allow receive signals 3.3.22 System interface. The amplifier-receiver/exciter and amplifier-coupler control interface lines shall be in accordance with Tables II an III respectively. All interface lines (except grounds 1 shall be radio frequency interference filtered bef.ore exiting
28、 the anplifier shield enclosure. 3.3.23 Continuais duty. The coupler shall aperate as specified herein under con- tinuous locked key duty, without the requirement for special external cooling facilifies. of primary power only. It shall be deenergized in the receive only me of operatiori. An internal
29、 blower shall be energized continuously by application 3.3.24 External controls and receptacles. The following external controls and receptacles shall be provided: (a) Control cable receptacle, t433114E-14-15P (b) Radio frequency output connector for the whip antennas and AS-2259 Antenna - high volt
30、age threaded type. (cl 50 ohm rf output connector - (ti) (d) Radio frequency input connector (I?) (e) ritiK, ground studs with wing nuts (one for grounding coupler to the vehicle, one for connection to ground rod when used) 7 Provided by IHSNot for ResaleNo reproduction or networking permitted witho
31、ut license from IHS-,-,-MIL-C- 2 8989B CMC) TABLE II - AMPLIFIER LO RECEIVER-EXCITER INTERFACE Rf-i209/vrtC naciivar/ucitar A!6545/0Rc kaplifier Line Conditiona/Statur Function Line Condition/Statua Operating Limits O-ldg1C-IIJrd fid ThrU L Frequency code. 1 MIt (81 A 8cax O current - i l).s;f Trana
32、iltor Ohni3 Inpita: tf“y“d-GM thN 15,000 oba ax PeYed-50,000 obs Ecln to GXD ir *26.5 VDC (nopi) L Direct Connections to +26.5 +22 to 30 VM: Primary Supply Line Direct Connection to A GM) H Direct Connection to Chaasts Gx) Chassis G:.D Inside PA OfGOQ.fl, 2p0.000 T PA On-Off Switching H Off +26.5 WC
33、 thru 10,000 The OWff Circuits Shall Operate a1n Ohai iroparly with the followinp Unit Tuns Start-Gtm Puise thru C Tuna Start P Tune Start43 m Max Sink ?!te Tuna Start Circuits Shall Collector-Eatter Junotion Current 0pe:ate Properly wit the 019 Outre Width 70 ms HLn Siriai Ildilatince 200 ohna Hax
34、ohs and Diode iAnplifier1 Zune Start4 Hillfaoconda .Hin Tuna start 16 WC Hm thru and Dioda (with antenna Pulsa Riru 300 ohms Hax 12 x Ohli . coupler) Tune Start 50,000 MIn to Gh3 .FI Load Impedance 50.000 J AIfiranadttar ohna Hin _- control . Tune Start 5.0 VDC thru 10.000 :ol!aring Limit inputsa or
35、 *26.5 WC thru 5700 ohms om Positiva Going Analog of RI . PowI Output Source Xrnfmdance Less than 2,000 ohms adiust- H fault Fault (Amplifier or Antenna . Coupler) chi thsu collector- Emitter Junction of Xegative Positive :iogative Siiicon -istor and SIacking Diode Fault-Open Diode Isolated Fro5 26
36、V. Direct COMiCtiOn t0 B Shield GHD U Direct Connection to Chassis 0I.D Chassis G:iD Inside PA Ant Cem .On* 26.5 Mc . D Ant CPtR On-off Switching T Direct Connection to Antenna Coupler (Sea Table Xi1 +22 to +30 WC . .yaX for Rx-only Sritchag Provided by IHSNot for ResaleNo reproduction or networking
37、 permitted without license from IHS-,-,-Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-IIIL-C-28989B( MC) The rf output connectors (d and e ab=) shall be mechanically interlocked in auch a way that it is hnpssible to make electrical connections to b
38、oth connectors simultaneously. . 3.3.25 Hardware. AU screws and nuts used shall be austenitic corrosion- resisting steel except where high rf fields require the use of brass or copper. Corrosion-resistant steel crossed-recessed drive screws and blts shall be employed in all screw and bolt applicatio
39、ns throughout the coupler in accordance with MIL- E-16400 (head styles and drive ). the case and electronic plug-in assemblies. Captive type bolts shall be used on the aver of 3.3.26 Fasteners to vehicular mounts. The coupler shall be fastened to the tlcunt- ia, Electric1 Equipment K-4495/GRc-193 wi
40、th screw-clap fasteners. 3.3.27 Enclmure. Tbe enclosure for the coupler unit shall be of the aluminum, head-exchanger type ad shall be watertight as specified in IIIL-SID-108. shall be munted on the end of the aupler to protect protrusions and to facilitate hand-carrying . Dm handles 3.3.27.1 Gasket
41、. Particular attention shall be made in the selection o a gasket which will conEorm with enclosure specified in 3.3.27. type, reusable for the life of the coupler, regardless of the nuber of openings for repa ir . The gasket shall be a permanent 3.3.27.2 Case and cover interface. action between the
42、case and the cover connectors and bolts of the coupler unit in accordance dth MIL-E-16400, Table I. A mans shall be provided to prevent galvanic 3.3.28 Warm-up time. The coupler shall require 110 warm-up the. 3.3 . 29 Electrical ove-sm-454 . 3 . 3.32 Interchangeability. Provisions for interchangeabi
43、lity are required and shall be in accordance with Requireioent 7 of MIL-STD-454. 3.3.33 Safety. Personnel safety hazards shall be kept to a minimum in accordance with Requirement 1 of MIL-SEI-454. 3.4 Reliability. Reliability of cperation shall ke considered of prime hpr- tance in the design and man
44、ufacture of the coupler. The contractor shall aploy all methods possible in the process o design, developnirnt and manufacture which will assure quality and maximum reliability consistent with the state-of-the-art. In the Eunctional application of parts, adequate factors of safety shall be provided
45、by suitable derating fran the part specification values in order to assure 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- NIL-C-Z787B 58 7977706 0182486 1 ClIL-C-2393%3 (MC ) high equipment reliability under all applicable service conditions. Th
46、e design shall include all pssible features which will result in reliable and stable operation and hence reduce the requirements for inaintenance by highly skilled prsonnel . 3.4.1 Reliability prqram. The contractor shall conduct a reliability prqram which will provide for, but shall not be limited
47、to, the following reliability tasks as described in PIIL-DD-785: (a) Reliability organizaticm (b) Management and control (c) Subcontractor and supplier reliability programs (d) Prqram reviews (e) Design techniques (f) Reliability analysis (y) Parts reliability (h) Reliability critical items ( i Effe
48、cts of storage, shelf-life, packaging, transportation, handling and maintenance (j ) Reliability demnstration (k) Failure data collection, analysis and corrective action (1) Status reports 3.4.2 PJumerical reliability requirement. The reliability shall be a 1,000 hour mean-time-between-failure (MPBF
49、). This shall be achieved under the followinq - qerating conditions: ( a Ahient operating temprature : 50“ C (b) (c) Duty cycle: 9 to 1 receive to transmit ratio Vehicle mounted ground exposed environment 3.4.3 Tuning life. The automatic tuning system shall perform a total of 6,000 tune cycles without failure or degradation requiring replacement of mmpnents or adjustment. 3.5 Maintainability.
