Matches in DBpedia 2016-04 for { <http://wikidata.dbpedia.org/resource/Q868514> ?p ?o }
Showing triples 1 to 29 of
29
with 100 triples per page.
- Q868514 subject Q7686782.
- Q868514 abstract "HAVE QUICK (also HAVEQUICK, short HQ) is a frequency-hopping system used to protect military UHF radio traffic.Since the end of World War II, U.S. and Allied military aircraft have used AM radios in the NATO harmonised 225–400 MHz UHF band for short range air-to-air and ground-to-air communications. During development and the procurement of UHF radios, military planners did not require features to secure communications for aircraft and helicopters from jamming until the post-Vietnam War era. Progress in electronics in the 1970s reached a point where anyone with an inexpensive radio frequency scanner or receiver set could intercept military communications. Once the target frequencies were identified, radio frequency jamming could easily be employed to degrade or completely disable communications. The HAVE QUICK program was a response to this problem. Engineers recognized that newer aircraft radios already included all-channel frequency synthesizers along with keyboards and displays for data entry. The only other system requirements to achieve the desired anti-jam functionality were an accurate clock (for timed synchronization) and a microprocessor to add frequency hopping to existing radios.Aircraft and ground radios that employ HAVE QUICK must be initialized with accurate Time Of Day (TOD) (usually from a GPS receiver), a Word Of the Day (WOD) which serves as a key, and a NET number (providing mode selection and multiple networks to use the same word of the day). The word of the day, time of day and net number are input to a cryptographic pseudorandom number generator that controls the frequency changes.HAVE QUICK is not an encryption system, though many HAVE QUICK radios can be used with encryption, e.g. the KY-58 VINSON system. HAVE QUICK is not compatible with SINCGARS, the VHF - FM radios used by ground forces, which operate in a different radio band and use a different frequency hopping method; however some newer radios support both.".
- Q868514 wikiPageExternalLink SIGNAL_Article_Template.asp?articleid=353&zoneid=47.
- Q868514 wikiPageExternalLink have_quick.
- Q868514 wikiPageExternalLink an-arc-164.htm.
- Q868514 wikiPageExternalLink an-prc-117f-hq.pdf.
- Q868514 wikiPageWikiLink Q1128361.
- Q868514 wikiPageWikiLink Q1136013.
- Q868514 wikiPageWikiLink Q1139372.
- Q868514 wikiPageWikiLink Q11436.
- Q868514 wikiPageWikiLink Q1326070.
- Q868514 wikiPageWikiLink Q141090.
- Q868514 wikiPageWikiLink Q1810628.
- Q868514 wikiPageWikiLink Q18822.
- Q868514 wikiPageWikiLink Q2660678.
- Q868514 wikiPageWikiLink Q34486.
- Q868514 wikiPageWikiLink Q362.
- Q868514 wikiPageWikiLink Q4032975.
- Q868514 wikiPageWikiLink Q4652865.
- Q868514 wikiPageWikiLink Q5150593.
- Q868514 wikiPageWikiLink Q5297.
- Q868514 wikiPageWikiLink Q628096.
- Q868514 wikiPageWikiLink Q7184.
- Q868514 wikiPageWikiLink Q7686782.
- Q868514 wikiPageWikiLink Q7907029.
- Q868514 wikiPageWikiLink Q8740.
- Q868514 wikiPageWikiLink Q958957.
- Q868514 comment "HAVE QUICK (also HAVEQUICK, short HQ) is a frequency-hopping system used to protect military UHF radio traffic.Since the end of World War II, U.S. and Allied military aircraft have used AM radios in the NATO harmonised 225–400 MHz UHF band for short range air-to-air and ground-to-air communications. During development and the procurement of UHF radios, military planners did not require features to secure communications for aircraft and helicopters from jamming until the post-Vietnam War era.".
- Q868514 label "HAVE QUICK".