NAVY MIL-B-28850 (7)-1986 BLANKERS INTERFERENCE MX-8757 UPX MX-8758 UPX AND MX-8758A UPX《MX-8757 UPX MX-8758 UPX和 MX-8758A UPX干涉消隐装置》.pdf
《NAVY MIL-B-28850 (7)-1986 BLANKERS INTERFERENCE MX-8757 UPX MX-8758 UPX AND MX-8758A UPX《MX-8757 UPX MX-8758 UPX和 MX-8758A UPX干涉消隐装置》.pdf》由会员分享,可在线阅读,更多相关《NAVY MIL-B-28850 (7)-1986 BLANKERS INTERFERENCE MX-8757 UPX MX-8758 UPX AND MX-8758A UPX《MX-8757 UPX MX-8758 UPX和 MX-8758A UPX干涉消隐装置》.pdf(7页珍藏版)》请在麦多课文档分享上搜索。
1、. E- 0 MIL-B-28550 (7) 55 W 7779706 0355475 T ,;3 I: 7) MIL-B-28850(ECj 5 AMENUMENT 7 15 September 1986 SUPERSEDING AMENDCIENT 6 27 January 1986 b MILITARY SPECIFICATION BLANKERS, INTERFERENCE, MX-8757/UPXD MX-8758/UPX, AND MX-8758A/UPX This amendment forms a part of Military Specification MIL-B-288
2、50(EC), dated 13 April 1979, and is approved for use by the Space and Naval Warfare Systems Command, Department of the Navy, and is available for use by all Departments and Agencies of the Department of Defense. Page 1 TITLE: Delete “and MX-8758/UPX“ and substi tute I, MX-8758/UPX, and MX-8758A/UPXt
3、. 1.1, 1 i ne 1 : Del ete “and MX-8758/UPX and substi tute I, MX-8758/UPX, and MX-8758A/UPXt. 2.1, after “Issues of documents., add: “Unless otherwise specified,“. PAGE 2 2.1, “STANDARDS“, MILITARY“, “MIL-STD-461“: Delete title and substitute: “Electromagnetic Emission And Susceptibility Requirement
4、s For The Control Of Electromagnetic Interference“. 2.1, “STANDARDS, MILITARY“, “MIL-STD-463: Delete title and substitute: I “Definitions And System Of Units, Electromagnetic Interference, And Electromagnetic Compatibility Technology“. 2.1, “STANDARDS“, MILITARY“, after “MIL-STD-113O“, add: DOD-STD-
5、1399, Section 300 Interface Standard For Shipboard Systems, Electric Power, Alternating Current (Metric)“. 3.1, lines 1 and 2: 3.2, line 1: 3.2.1.1.lb, line 2: Delete “f5 percent“ and substitute “f8.5 percent“. PAGE 3 Delete “and the MX-8758/UPX“ and substitute II, the MX-8758/UPX, and the MX-8758A/
6、UPXIt. Delete .“twot and substitute three. 3.2.3, lines i! and 4: Delete “and the MX-8758/UPXm and substitute I, the MX-8758/UPX, and the 3.2.3 through 3.2.3.2.1: 3.2.3 and 3.2.3.2.1, added by Amendment 1 and changed by Amendment 6: Delete and substitute: “3.2.3 MX-8758A/UPX. The MX-8758A/UPX defrui
7、ter design shall employ pulse to pulse defruiting which shall be link setting selectable to be either single, dual or, 2/3 (OR) defruiting Defruiting shall be on a single channel per mode basis for single defruiting, and on a two channel per mode basis for dual or 2/3 (OR) defruiting. MX-8758A/UPXt1
8、. Renumber to 3.2.4 through 3.2.4.2.1. * AMSC N/A FSC 5840 DISTRIBUTION STATEMENT A. Approved for pub1 ic release; distribution is un1 imi ted. 1 of 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. MIL-B-28850 (7) 58 7797906 0355496 I I- 2 I . MIL
9、-B-28850(EC) AMENDMENT 7 “3.2.3.1 Modular parameters. The modular parameters shall be as specified in a and b: a. Modes: As specified in 3.2.1.1.1, except that Mode 4 video shall be defruited only b. Range: The range characteristics shall be link selectable or switch selectable to 1. if selected by
10、an internal link or switch, be passed from the unit undefruited. be either of the following: Range selection 1: When this has been selected, the defruiter kX-875bA/UPX shall defruit from mode tag to mode tag, regardless of the interlace sequence, for any repetition rate from 5 pulse repetition frequ
11、ency (PRF) to 1500 PRF. The unit shall operate with any stable or staggered PRF in this range. The unit shall output undefruited video past 350 nm I8.5 percent. 2. -Range selection 2: When this has been selected, the unit shall defruit all video which has a range less than the selected maximum range
12、. The selected maximum range shall be link selectable or internal switch selectable to be any range from 100 nm to 325 nm *5 percent in increments of 25 nm orllless. Video beyond the selected maximum range shall be undefruited output from the MX-8758A/UPX. If Mode 4 defruiting is not selected, Mode
13、4 video will 3.2.3 (new 3.2.41, line 4: After “(350 nm)“ insert “i8.5 percent“. 3.2.4: Delete. 3.2.5: Delete text and substitute: “The components of the defruiter shall conform to the requirements of MIL-STD-461, Class A4 and the interference limits specified therein. defruiter will be operated near
14、, or interconnected with, high power radar equipment from which high levels of RF energy will be radiated and conducted to the defruiter. incorporation of shielding or filtering, or both, in the equipment for proper operation. In service, the Provisions shall be made by 3.2.6a: Delete “2“ and substi
15、tute “4“. PAGE 4 3.2.9: 3.2.11, line 1: MX-8758A/UPX1. 3.2.11, line 9, after “The dimensions of the MX-8758/UPXf, add: Delete “and MX-8758/UPX and substi tute II, MX-8758/UPX, and MX-8758A/UPX1. Delete “and the MX-8758/UPX1 and substitute I, the MX-8758/UPX, and the “and PIX-8758A/UPX“. - PAGE 5 3.2
16、.12.1, line 2, after “60 Hz *IO percent“, add: “(having the characteristics of Type I power 3.2.12.1, last sentence: Delete and substitute: “The electrical requirements of DoD-STD-1349, as specified in DoD-STD-1399, Section 300) .I. Section 300 and MIL-E-16400F apply.“ * 3.2.12.3, 1 ine 5, after “MX
17、-8758/UPX“, add “and the MX-8758A/UPX1. PAGE 6 3.2.21, add as last sentence: “The MX-8758A/UPX defruiter shall have a platform mount only. II PAGE 7 3.2.24.1, line.1: Delete “Whenever practicable, and begin the sentence with “The“. PAGE 8 Add the following new paragraph 3.3.2.3 and renumber existing
18、 3.3.2.3 through 3.3.2.17 to 3.3.2.4 “3.3.2.3 MX-8758A/UPX. through 3.3.2.18: The MX-8758A/UPX defruiter shall perform pulse to pulse single, dual, or 2/3 (OR) defruiting, employing up to ten memory channels. When the defruiter set is turned on, the total memory need not be blank. The incoming video
19、 in response to the first interrogation is 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-28850 (7) 58 m 9999906 0155i.177 3 m MI L-8-28850 ( EC ) AMENDMENT 7 received from the interrogator set (or RT unit) and shall be processed (as require
20、d elsewhere in this specification), and shall be read into the appropriate modes memory channel 1. the incoming video is determined by the presence of the appropriate mode tags. shall be clocked into memory until the range specified in 3.2.3.1b has occurred, or until the maxi- mum range of the defru
21、iter is reached, (after which video shall be passed through the unit unde- fruited), or until another set of mode tags has been received. When video from the second inter- rogation of the same mode occurs, it shall be first processed and then read into the same memory channel in the same position an
22、d in the same manner as the previously stored reply video. Approxi- mately simultaneously, the-delayed video from memory channel 1 shall be read out and stored in memory channel 2 for that mode (to allow for dual defruiting and 2/3 (OR) defruiting, if selected). Mode 4 replies shall be internally se
23、lectable by link or switch to be one of the following: defruited as time decoded video (with separate input and output rear panel jacks from the .composite video jacks) or b) defruited as reply video (this assumes another unit is doing the mode tag retiming), or c) passed through the unit undefruite
24、d for either a or b. In all other respects the operation of the MX-8758A/UPX defruiter shall be identical to the operation of the MX-8758/UPX def rui ter.“. The mode of The incoming video a) 3.3.2.3f (new 3.3.2.4f1, line 2: Delete “450“ - and substitute “1500“. 3.3.2.31 (new 3.3.2.41): Add at the be
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