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FED-STD-1023

TELECOMMUNICATIONS: INTEROPERABILITY REQUIREMENTS FOR ENCRYPTED, DIGITIZED VOICE UTILIZED WITH 25 KHZ CHANNEL FM RADIOS OPERATING ABOVE 30 MHZ

Organization:
NCS - National Communications Systems (Office of Technology and Program)
Year: 1989

Abstract: This standard establishes interoperability requirements regarding the analog to digital conversion, encryption (with related synchronization), and modulation of encrypted voice associated with Frequency Modulation (FM) radio systems employing 25 kHz channels and operating above 30 MHz. In this standard, voice is digitized using 12 kbit/s Continuously Variable Slope Delta-modulation (CVSD) and then encrypted using a National Security Agency (NSA) Commercial COMSEC Endorsement Program (CCEP) Type I encryption algorithm.
This standard is to facilitate interoperability between telecommunication facilities and systems of the Federal Government.
This standard shall be used by all Federal departments and agencies in the design and procurement of digitized voice Type I encryption equipment for use with nominal 25 kHz channel FM radio systems that operate above 30 MHz and digitize voice at greater than 4,8 kbits/s and less than 16 kbits/s. All such equipment must be capable of digitizing voice using 12 kbit/s Continuously Variable Slope Delta-modulation (CVSD).
Note: This standard applies only to Type I (i.e., protection of classified information) systems and does not restrict the use of other systems, such as Data Encryption Standard (DES) encryption or analog and quasi-analog scrambling systems.
URI: https://yse.yabesh.ir/std/handle/yse/199100
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    FED-STD-1023

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contributor authorNCS - National Communications Systems (Office of Technology and Program)
date accessioned2017-09-04T18:16:10Z
date available2017-09-04T18:16:10Z
date copyright09/25/1989
date issued1989
identifier otherHMEVDAAAAAAAAAAA.pdf
identifier urihttps://yse.yabesh.ir/std/handle/yse/199100
description abstractThis standard establishes interoperability requirements regarding the analog to digital conversion, encryption (with related synchronization), and modulation of encrypted voice associated with Frequency Modulation (FM) radio systems employing 25 kHz channels and operating above 30 MHz. In this standard, voice is digitized using 12 kbit/s Continuously Variable Slope Delta-modulation (CVSD) and then encrypted using a National Security Agency (NSA) Commercial COMSEC Endorsement Program (CCEP) Type I encryption algorithm.
This standard is to facilitate interoperability between telecommunication facilities and systems of the Federal Government.
This standard shall be used by all Federal departments and agencies in the design and procurement of digitized voice Type I encryption equipment for use with nominal 25 kHz channel FM radio systems that operate above 30 MHz and digitize voice at greater than 4,8 kbits/s and less than 16 kbits/s. All such equipment must be capable of digitizing voice using 12 kbit/s Continuously Variable Slope Delta-modulation (CVSD).
Note: This standard applies only to Type I (i.e., protection of classified information) systems and does not restrict the use of other systems, such as Data Encryption Standard (DES) encryption or analog and quasi-analog scrambling systems.
languageEnglish
titleFED-STD-1023num
titleTELECOMMUNICATIONS: INTEROPERABILITY REQUIREMENTS FOR ENCRYPTED, DIGITIZED VOICE UTILIZED WITH 25 KHZ CHANNEL FM RADIOS OPERATING ABOVE 30 MHZen
typestandard
page2
statusRevised
treeNCS - National Communications Systems (Office of Technology and Program):;1989
contenttypefulltext
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DSpace software copyright © 2017-2020  DuraSpace
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