1、- MIL-C-28855 58 9999906 01556111 3 I MIL-C-28855(EC) 25 September 1979 MILITARY SPECIFICATION CU-2113( )/SRC COUPLER-ISOLATOR This specification is approved for use by the Naval Electronic Systems Connnand, Departinent of the Navy, and is available for use by all Departments and Agencies of the Dep
2、artment of Defense. 1. SCOPE 1.1 Scope. This specification covers CU-2113( )/SRC Coupler-Isolators which enable the simultaneous use of a shipboard 2 megahertz (MHz) to 6 MHz broadband transmitting antenna as a 10 kilohertz (kHz) to 30 MHz receiving antenna. 2. APPLICABLE DOCUMENTS 2.1 Government do
3、cuments. The following documents, of the issue listed in the Department of Defense Index of Specifications and Standards (DoDISS) and its supplements, fosm a part of this document to the extent specified herein. The date of the applicable DoDISS and supplements there- to shall be as specified in the
4、 solicitation. SPECIFICATIONS MILITARY MIL-S-901 MIL-P-15024 MIL-E-16400 MIL- E-17555 MIL-E-21981 MIL-C-23183 Shock Tests, H.I. (High Impact); Shipboard Machinery, Equipment And Systems Requirements For Plates, Tags And Bands For Identification Of Equipment E 1 ectron i c, Interior Conun i cat i on
5、And Navigation Equipment, Naval Ship And Shore: General Specification For Electronic And Electrical Equipment, Accessories, And Repair Parts; Packaging And Packing Of Electronics Type Designations, Identification Plates And Markings, Requirements For Capacitors, Fixed Or Variable , Vacuum Dielectric
6、, General Specification For STANDARDS MIL I TARY MIL-STO-109 MIL-STD-167- MIL-STD-454 MIL-STD-461 Quality Assurance Terms And Definitions Mechanical Vibrations Of Shipboard Equipment (Type I - Environmental And Type II - Internally Excited) Standard General Requirements For Electronic Equipment E 1
7、ectromagnet i c Interference Character i st i cs Require- ments For Equipment E 1 ectromagnet ic Interference Character i st i cs, Measure- ment Of .1 MIL-STD-462 MIL-STD-010 Envi ronmental Test Methods Beneficial comnents (recomnendations, additions, deletions) and any pertinent data which may be o
8、f use in improving this document should be addressed to: Comnander, Naval Electronic Systems Comnand (ELEX-50431, Washington, D. C. the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document, or by letter. 20360, by using - - . _. I. FSC 582
9、5 , Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-?IIL-C-25855( EC; DRAW1 HGS MI L I TARY NAVAL ELECTRONIC SYSTEMS COMMAND 73E9N100 Coupler-Isolator CU-ZllS/SRC Final Assembly (Copies of specifications, standards, drawings, and publications require
10、d by contractors in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer.) 3. REQUIREMENTS 3.1 General requirements. The CU-2113( )/SRC Coupler-Isolator to be supplied hall be in accordance with Naval Electronic Syste
11、ms Comnand drawing 73E9N100 except as hereinafter specified. . 3.2 First article. When specified (see 6.2), the contractor shall furnish sample unit(s) for first article inspection and approval (see 4.3 and 6.3). The first article shall be completely representative of the production units. 3.3 Perfo
12、rmance reauirements. 3.3.1 TRANSMITTER port to ANTENNA port insertion loss. The CU-2113( )/SRC Coupler-Isolator insertion loss with respect to a 50 ohm system from the TRANSMITTER port to the ANTENNA port with a 50 ohm (non-reactive) resistive load on each the ANTENNA, HF RECEIVE, and LF-MF RECEIVE
13、ports when measured at each frequency from 2 MHz to 6 MHz inclusive shall be less than 0.5 decibels (dB). insertion loss with respect to a 50 ohm system from the ANTENNA port to the HF RECEIVE port with a short circuit on the TRANSMITTER port and a 50 ohm (non-reactive) resistive load on each the LF
14、-MF RECEIVE and HF RECEIVE ports when measured at frequencies from 2 MHz to 30 MHz inclusive shall be within the limits shown in FIGURE 1. The CU-2113( a 50 ohm system from the ANTENNA port to the HF RECEIVE port with an open circuit on the TRANSMITTER port and a 50 ohm (non-reactive) resistive load
15、 on each the LF-MF RECEIVE and HF RECEIVE ports when measured at frequencies from 2 MHz to 30 MHz inclusive shall be within the limits shown in FIGURE 2. 3.3.3 ANTEKNA port to LF-MF RECEIVE port insertion loss. The CU-2113( )/SRC Coupler- Isolator insertion loss with respect to a 50 ohm system from
16、the ANTENNA port to the LF-MF RECEIVE port with a 4720 picofarad (pF) vacuum capacitor conforming to MIL-C-23183,on the TRANSMITTER port and a 50 ohm (non-reactive) resistive load on each the HF RECEIVE and LF-MF RECEIVE ports when measured at frequencies from 10 kHz to 2 MHz inclusive shall be with
17、in the limits shown in FIGURE 3. 3.3.4 TRANSMITTER port to HF RECEIVE port insertion loss. The CU-2113( )/SRC Coupler- Isolator insfihe TRANSMITTER port to the HF RECEIVE port with a 50 ohm (non-reactive) resistive load on each the ANTENNA, HF RECEIVE, and LF-MF RECEIVE ports when measured at freque
18、ncies from 2 MHz to 6 MHz inclusive shall be not less than the limits shown in FIGURE 4. system from the TRANSMITTER port to the HF RECEIVE port with a 16.7 ohm (non-reactive) resistive lo-d on the ANTENNA port and a 50 ohm (non-reactive) resistive load on each the HF RECEIVE and LF-MF RECEIVE port
19、when measured at frequencies from 2 MHz to 6 MHz inclusive shall be not less than the limits shown in FIGURE 5. The CU-2113( 50 ohm system from the TRANSMITTER port to the HF RECEIVE port with a 150 ohm (non-reactive) resistive load on the ANTENNA port and a 50 ohm (non-reactive) resistive load on e
20、ach the LF-MF RECEIVE and HF RECEIVE ports when measured at frequencies from 2 MHz to 6 MHz inclusive shall be not less than the limits shown in FIGURE 6.“ 3.3.2 ANTENNA port to HF RECEIVE port insertion loss. The CU-2113( )/SRC Coupler-Isolator )/SRC insertion loss with respect to The CU-2113( )/SR
21、C insertion loss with respect to a 50 ohm )/SRC insertion loss with respect to a 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-28855( EC) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-O PY
22、 Lo N O z r N O INSERTION LOSS-dB FIGURE 2. CU-2113 ( )/SRC insertion loss limits with respect to 50 a system-ANTENNA port to HF RECEIVE port TRANSMITTER-open circuit. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-o FIGURE 3. CU-m3( )/W insertion
23、 loss Ilmits w#h re-t to !3JA system-AFJTENNA wrt to %CiVE Wrt. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- O (o O (u (u VI O t 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-28855( EC
24、) O (u O M ill v m INSERTION LOSS - dB O d 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-v) O nt - li O n FIGURE 6. CU-m3( )/SRC insertion loss limits with resgect to 5A system - TRANSMmR wrt to Hf RECENE Port ANTENNA 15011. 8 Provided by IHSNot
25、for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-28855 5B = 397930b 0355b22 2 MIL-C-2255( ECJ 3.3.5 Radio frequency input poser. The CU-2113( )/SRC Coupler-Isolator shall operate without damage with a total maximum rndio frequency average power of 5.04 kilowatts (
26、kW) applied to the TRANAITTER port of the CU-2113( 6.0 NHz. The total heat dissipation to the surrounding air from the CU-2113( )/SRC with the foregoing 5.04 kCI applied to the TRANSMITTER port shall not exceed 200 watts (W). 3.3.6 Generation cf intermodulation products. Intermodulation product leve
27、ls generated in the CU-2113 volt (PV) at the l!F RECEIVE port of the CU-2113( )/SRC when: the ANTENNA, HF RECEIVE, and LF-IslF RECEIVE ports of the CU-2113( )/SRC are each terminated in a 50 ohm (non-reactive) resistive load; 500 W (average power) at each of two different frequencies in the 2.0 biHz
28、 through 6.0 NHz frequency rance are applied to the TRANSMITTER port of the CU-2113( of continuous reliable operation in accordance with the performance requirements of this specif- ication under the environmental conditions specified herein. 3.4.1 Temperature. The CU-2113( )/SRC Coupler-Isolator sh
29、all maintain specified perform- ance when subjected to temperatures throughout the complete operating temperature range 4 of #IL-E-16400. The CU-2113( restored ?P tbe operating temperature range 4 of #IL-E-16400 after being subjected to the complete non-operating temperature range 4 of MIL-E-16400.
30、when subjected to relative humidities ranging from O to 95 percent for both continuous and inter- mittent periods. )/SRC at frequencies in the range frorri 2.C CiHz through /SRC Coupler-Isolator shall each be less than or equal to 10 dB above one micro- )/SRC. 3.4 Environmental service conditions. T
31、he CU-2113( )/SRC Coupler-Isolator shall be capable )/SRC shall not be damaged nor shall performance be degraded when 3.4.2 Humidity. The CU-2113( )/SRC Coupler-Isolator shall maintain specified performance 3.4.3 M. Salt fo Salt fog (spray) shall be in accordance with the Salt fog (spray) paragraph
32、of MIL E-164 O or sheltered equipment. 3.4.4 Shock. The CU-2113( )/SRC Coupler-Isolator shall be capable of withstanding the grade A, type A, class I shock test of MIL-S-901 without impairment which would cause CU-2113( completion of the test. Degradation in specified performance during the shock te
33、st impact will be allowed. 3.4.5 Vibration. The CU-2113( )/SRC Coupler-Isolator shall maintain specified performance when subjected to the type I vibration test of MIL-STO-167-1. 3.4.6 Inclination. The CU-2113( )/SRC Coupler-Isolator shall maintain specified per- formance when subjected to inclinati
34、on angles of up to and including 45 degrees from the horizontal. 3.5 Electromaqnetic compatibility. The CU-2113( )/SRC Coupler-Isolator shall be self- compatibleanduirements of MIL-STO-461 for class 1A and 1B equipments as fol lows: )/SRC to malfunction or which would cause degradation in specified
35、performance after a. b. RE02: MIL-STD-461 limits shall be increased as 10 loglo (P/(l watt) for all values of RF input power, P, over one wat.t. RS03: MIL-STD-461 limits unchanged except that levels shall be 50 volts/meter from 2.0 MHz through 30.0 MHz. riwing susceptibility tests the performance of
36、 .the Coupler-Isolator shall not deviate from the requirements of 3.3. 3.6 Identification and markin . An identification plate conforming to the requirements of MIL-E-Z-he equipment nomenclature and serial number shall be attached to each CU-2113( plates, type G of MIL-P-15024, shall not be used, )/
37、SRC Coupler-Isolator offered for delivery. Adhesive backed identification 3.7 Workmanshi . Workmanship shall conform to Naval Electronic Systems Conunand drawing 73E9N100 admply with requirement 9 of MIL-STD-454. 3.7.1 Workmanship screen. All equipment shall withstand a defect detection vibration 2
38、screen of random type vibration at 0.049 /Hz (23 dB) from 80 to 350 Hz, and temperature cycling to the temperature range specified in 3.4.1. 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-2855 58 7979706 0155623 4 W 4. OUALITY fiSSilRAEiCE P
39、RGVISICJHS . 2.1 Res onsiLilit:! for irispection. Unless otherwise specified in the ccntracc, the con- tractor is re shall report to the Government inspector and the Government inspection activity the failure and the results of the investigation thereof; and shall take corrective action to ensure th
40、e failed Coupler-Isolator will conform to the requirements Isolators which were manufactured both previously and subsequentially with the same conditions, materials, processes, and so forth, as the failed unit to ensure the problem which caused the failure will be eliminated in all delivered Coupler
41、-Isolators, . of this specification. The contractor shall then institute corrective action for Coupler- 4.5 Test methods. 4.5.1 Surface examination. The CU-2113( )/SRC Coupler-Isolator and its associated parts, components, subassemblies, and assemblies shall be inspected for conformance to Naval Ele
42、ctronic Systems Command drawing 73E9N100 and to verify compliance with the requirements of this specif- ication. The Coupler-Isolator shall be examined for conformance to requirements for, interalia, the following: dimensions, parts and materials, interconnections, finish, identification and marking
43、, safety, and workmanship. In the process of examination the Coupler-Isolator shall not be disassembled in a manner that will affect the performance, durability, or appearance of the unit. ! I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-288
44、55 58 777790b 0355625 M !.;IL-C-28855( EC) 4.5.2 Workmanshin scre?li. te performed on eacn oquipent. exposed to vi tir at i on. 4.5.2.1 Rans-,m ribration. approval, pseudorandon or complex wave-fora Vibration for an accurculated time rf ten minutes in the test itcr ax: Ieemed A11 test itess shall be
45、 hard aounted (vithout shock isolators) and subjected to the vibration conditims cf FIGURE 7. The control accelerometer shall be located next?to one of the mounting points of the iterr under test. to chserve any ebnormal conditions of the output functional characteristics. occwrin9 during the test s
46、hall require corrective action before the test is resumed. Prior to conductirq temperature cyc1ir.F test, ?.ii?ratic.i? shall All the hardivare, including cables ar,d cGfrectors, shell be The, vibrotion shall be random, cry subject tc Prccuririp activity most susceptible to vibration excitation. The
47、 test item shall be energize curing vibration and appropriate input.sionals applied Any failure ASD 0.04 FREOUENCY 1W FIGURE 7. Random vibration curve. NOTE: The xceleration spectral density (ASD) shall be controlled by an accelerometer signal wit, a filtered bandwidth of 10 Hz up to a vibration fre
48、quency af 500 Hz and a 100 Hz bandwidth above 500 Hz. 4.5.2.2 Temperature cyclin . Each equipment shall be subjected to the temperature curve indicated below. The number of Cycles required shall be determined by the electrical and electronic parta count and the parts count chart below. not less than
49、 5 Celsius (C) per minute. exposure to the changing temperature. The last temperature cycle shall be failure free. A functional operating test shall be performed. required fqr.the. largest electrical or electronic part to become temperature stabilized. Temper- ature stabilization shall be as defined in MIL-STDdlO for the non-operating condition. The temperature rate
