MIL-STD-188-141B_NOTICE-1.024837.pdf资源-CSDN文库

NOTICE OF

CHANGE

NOT MEASUREMENT

SENSITIVE

MIL-STD-188-141B

NOTICE 1

31 AUGUST 2001

DEPARTMENT OF DEFENSE INTERFACE STANDARD

INTEROPERABILITY AND PERFORMANCE STANDARDS

FOR MEDIUM AND HIGH FFREQUENCY

RADIO EQUIPMENT

TO ALL HOLDERS OF MIL-STD-188-141B:

1. The following pages of MIL-STD-188-141B have been revised and supersede the pages listed:

NEW PAGE(S)

DATE

SUPERSEDED PAGE(S)

DATE

1 31 August 2001 1 1 March 1999

10-11 31 August 2001 10-11 1 March 1999

14 31 August 2001 14 1 March 1999

22-23 31 August 2001 22-23 1 March 1999

25 31 August 2001 25 1 March 1999

28 31 August 2001 28 1 March 1999

30 31 August 2001 30 1 March 1999

35 31 August 2001 35 1 March 1999

43 31 August 2001 43 1 March 1999

54-56 31 August 2001 54-56 1 March 1999

64-65 31 August 2001 64-65 1 March 1999

175 31 August 2001 175 1 March 1999

190-196 31 August 2001 190-196 1 March 1999

198-207 31 August 2001 198-207 1 March 1999

212 31 August 2001 212 1 March 1999

215 31 August 2001 215 1 March 1999

246 31 August 2001 246 1 March 1999

248 31 August 2001 248 1 March 1999

265-275 31 August 2001 265-275 1 March 1999

275a 31 August 2001 new page

276-282 31 August 2001 276-282 1 March 1999

282a 31 August 2001 new page

283-289 31 August 2001 283-289 1 March 1999

291-295 31 August 2001 291-295 1 March 1999

297-315

31 August 2001

297-315

1 March 1999

317-439

31 August 2001

317-439

1 March 1999

489-498

31 August 2001

489-498

1 March 1999

498a-498f

31 August 2001

new pages

506-511

31 August 2001

506-511

1 March 1999

514-517

31 August 2001

514-517

1 March 1999

520

31 August 2001

520

1 March 1999

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MIL-STD-188-141B Notice 1

SUPERSEDES PAGE 1 OF MIL-STD-188-141B.

1

1. SCOPE.

1.1 Scope.

The purpose of this document is to establish technical performance and interface parameters in

the form of firm requirements and optional design objectives (DO) that are considered necessary

to ensure interoperability and interface standardization of new long-haul and tactical radio

systems in the medium frequency (MF) band and in the high frequency (HF) band. It is also the

purpose of this document to establish a level of performance for new radio equipment that is

considered necessary to satisfy the requirements of the majority of users. These technical

parameters, therefore, represent a minimum set of interoperability, interface, and performance

standards. The technical parameters of this document may be exceeded in order to satisfy certain

specific requirements, provided that interoperability is maintained. That is, the capability to

incorporate features such as additional standard and nonstandard interfaces is not precluded.

1.2 Applicability.

This standard is approved for use within the Department of Defense (DoD) in the design and

development of new MF and HF radio systems. It is not intended that existing equipment and

systems be immediately converted to comply with the provisions of this standard. New

equipment and systems, and those undergoing major modification or rehabilitation, shall conform

to this standard. If deviation from this standard is required, the user should contact the lead

standardization activity for waiver procedures.

1.3 Application guidance.

The terms “system standard” and “design objective” are defined in FED-STD-1037. In this

document, the word “shall” identifies firm requirements. The word “should” identifies design

objectives that are desirable but not mandatory.

2. APPLICABLE DOCUMENTS.

2.1 General.

The documents listed in this section are specified in sections 3, 4, and 5 of this standard. This

section does not include documents cited in other sections of this standard, those recommended

for additional information, or those used as examples. While every effort has been made to

ensure the completeness of this list, document users are cautioned that they must meet all

specified requirements documents cited in sections 3, 4, and 5 of this standard, whether or not

they are listed.

2.2 Government documents.

2.2.1 Specifications, standards, and handbooks.

The following specifications, standards, and handbooks form a part of this document to the

extent specified herein. Unless otherwise specified, the issues of these documents are those

listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS)

and supplement thereto cited in the solicitation (see paragraph 6.3).

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MIL-STD-188-141B Notice 1

SUPERSEDES PAGE 10 OF MIL-STD-188-141B.

10

4.4.3 High-performance HF data modems.

If interoperation with NATO member nations is required, land, air, and maritime, single-channel

HF radio equipment shall comply with the “Associated communications equipment”

requirements of STANAG 4539.

4.4.4 QSTAGs.

If interoperation among American, British, Canadian, Australian (ABCA), and New Zealand

Armies is required, HF combat net radio equipment shall comply with the applicable

requirements of the current edition of QSTAG 733.

4.5 Adaptive communications.

Adaptive HF describes any HF communications system that has the ability to sense its

communications environment, and, if required, to automatically adjust operations to improve

communications performance. Should the user elect to incorporate adaptive features, they shall

be in accordance with the requirements for those features stated in this document.

The essential adaptive features are:

a. Channel (frequency) scanning capability.

b. ALE using an embedded selective calling capability. A disabling capability and a

capability to inhibit responses shall be included.

c. Automatic sounding (station-identifiable transmissions). A capability to disable sounding

and a capability to inhibit responses shall be included.

d. Limited link quality analysis (LQA) for assisting the ALE function:

(1) Relative data error assessment.

(2) Relative signal-plus-noise-plus-distortion to noise-plus-distortion ratio (SINAD).

(3) Multipath/distortion assessment (DO) (optional).

e. Automatic link maintenance

f. Channel occupancy detection

4.6 Linking protection.

LP refers to the protection of the linking function required to establish, control, maintain, and

terminate the radio link. Because this protection is applied to the link establishment function, LP

is a data link layer function in terms of the Seven Layer Reference Model. Figure B-1, Appendix

B shows a conceptual model of the MIL-STD-188-141 data link layer functions, showing the

placement within the data link layer at which linking protection shall be implemented. Voice

transmissions or data transmissions from external modems are not affected by the LP. The LP

application levels and their corresponding protection interval (PI) are defined in Appendix B,

paragraphs B 4.1.1 through B 4.1.1.5.

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MIL-STD-188-141B Notice 1

SUPERSEDES PAGE 11 OF MIL-STD-188-141B.

11

4.7 HF data link protocol.

See Appendix G, Second-Generation Data Link Protocol.

4.8 Networking functions.

a. MIL-STD-188-141 establishes the technology baseline needed for establishing and

maintaining links among HF radio stations. Networking technology augments this direct

connection capability with the ability to find and use indirect routes.

b. The functions performed at the network layer may be grouped into two broad categories:

routing functions and data management functions. Routing functions select paths through

the network for voice and data traffic, using stored information (provided by operators, local

data link controllers, and remote networking controllers) about the quality of available links

to other stations. Data management functions acquire and communicate that (and other)

information.

c. Link-level error statistics directly characterize the quality of single-link paths and are used

to compute end-to-end path quality for multiple-link paths through relays. These results are

stored in a path quality matrix (PQM), which is organized to provide the path quality to any

reachable destination via each directly-reachable relay station. From this path quality data, a

routing table (RT) is formed. This table lists the best path to each reachable station for

various types of communication (e.g., voice and data).

4.8.1 Indirect calling and relaying.

When a station cannot directly link with a desired destination, other stations may be employed to

assist in getting the message through. The simplest option is to have the local link controller or

the HF Network Controller (HFNC) establish a link with a station other than the desired

destination so that the station operators can manually communicate (using either voice or data

orderwire) after the fashion of a torn-tape relay. When the equipment at the intermediate station

is able to automatically establish an indirect path to the destination, this is termed relaying. A

variety of relaying techniques are possible, some of which are shown in Figure 3. These

techniques are differentiated where the cross-connection occurs in the protocol stack. Each

alternative is briefly discussed in Table I.

4.8.2 Network management.

See Appendix D, HF Radio Networking, and Appendix H, Management Information Base

4.9 HF e-mail and other application protocols for HF radio networks.

See Appendix E, Application Protocols for HF Radio Networks.

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