0000017467 00000 n
0000043216 00000 n
While conventional radars pass through the atmosphere, OTH radar bounces off the earth's ionosphere, which is between 100 and 450 kilometers above the surface to detect targets as far as 3,000 kilometers away. 0000057532 00000 n
0000087552 00000 n
OTH radars could also detect stealth aircraft and locate inter-continental ballistic missiles and other types of missiles fired by other countries. 0000115792 00000 n
0000016020 00000 n
startxref
Tel:1-860-594-0200 Fax:1-860-594-0259
0000077034 00000 n
0000004411 00000 n
While conventional radars pass through the atmosphere, OTH radar bounces off the earth's ionosphere, which is between 100 and 450 kilometers above the surface to detect targets as far as 3,000 kilometers away. 0000113100 00000 n
IARUMS also reports that the Australian Jindalee Operational Radar Network (JORN) has been heard on 10.131 MHz in the amateur 30-meter band; Amateur Radio is secondary on 30 meters. 0000114953 00000 n
0000081039 00000 n
Did the Trump administration just announce plans for a trade war with ‘hostile’ China and Russia? %PDF-1.4
%����
0000114377 00000 n
0000071896 00000 n
0000056877 00000 n
0000115915 00000 n
0000113220 00000 n
0000112634 00000 n
Alle anderen Radarkonzepte eignen sich nicht dafür, Reichweiten von mehreren 1000 km zu erzielen. 0000061755 00000 n
Toll-free:1-888-277-5289
0000006855 00000 n
0000112448 00000 n
0000006609 00000 n
THAAD is a missile defense system Beijing and Russia fear could be a tool to be used to spy its military activities. 0000115230 00000 n
0000112811 00000 n
0000086142 00000 n
0000114520 00000 n
0000113531 00000 n
Radio Eritrea appeared in November on 7180 kHz together with white noise from Ethiopia. 0000071121 00000 n
0000112763 00000 n
Special Event Stations, DXCC Program, W100AW & W1AW QSLs via Bureau, Amateur Code, Operating Resources, QSL Service, Centennial QSO Party, NPOTA, Logbook of the World, Operating Specialties, W1AW, International Grid Chase 2018, Hiram Percy Maxim 150th Birthday Celebration, Awards, Amateur Radio Direction Finding, Contests, FCC License Info and Forms, Getting Licensed, Volunteer Examiners, License Certificates, Amateur Radio in the Classroom, Courses & Training, Get on the Air, What is Ham Radio, Volunteer Instructors/Mentors, Learning Center, Member Directory, myARRL, Membership Certificate, Blind Membership, Join ARRL/Renew Membership, member feedback, Dues Increase FAQ, Member Support, Techquestion, Membership Levels, Member Discounts, State and Local, Volunteer Consulting Engineer Program, Volunteer Counsel Program, Antenna Regulation and Zoning, CCR Study Information, International, Federal RFI Preemption, Technical Relations Office, Federal, Volunteer Monitor Program, Volunteer Monitor Resources, NTS Manual, Public Service Resources, Public Service Honor Roll, NTS, Volunteer Form for Deployment Consideration, Puerto Rico - Caribbean Recovery 2017, 2018 Hurricanes, Hurricane Maria - 2017, Hurricane Irma - 2017, Hurricane Harvey Response, ARES, Served Agencies and Partners, SKYWARN Recognition Day, 2019 Hurricanes, Ham Aid, 2020 Hurricanes, ARRL References, Tech Tips, Tech Portal, Radio Technology Topics, ARRL Lab, Radio Frequency Interference (RFI), Recruiting & Outreach, Clubs, Volunteer Opportunities, Youth, Donate to ARRL, Hamfests and Conventions Calendar, Collegiate Amateur Radio, The ARRL Foundation, ARRL Publication Dealers, ARRL Store, List all Products, Return Policy, Customer Service/Support, Product Notes, Shipping and Tax, Site Index, Centennial, Copyright, Visit Us, Privacy Policy, ARRL Strategic Plan, Library, Advertising and Other Business Opportunities, Organization Structure, Media and Public Relations, Contact ARRL, ARRL Social Media, Employment Opportunities, General Information, ARRL, the national association for Amateur Radio
121 131
0000086501 00000 n
0000115278 00000 n
0000016617 00000 n
0000115744 00000 n
All two radars are used to monitor the entire western Pacific if used together with spy satellites. 0000113376 00000 n
0000013902 00000 n
%%EOF
0000116011 00000 n
0000033978 00000 n
0000042294 00000 n
0000085903 00000 n
China says it has developed an over-the-horizon maritime early warning radar that can detect stealth aircraft beyond visual range. These systems could be used in an early warning capacity. Newington, CT, 06111-1400 USA
0000003818 00000 n
0000115571 00000 n
0000000016 00000 n
225 Main Street
0000061367 00000 n
0000112221 00000 n
0000088590 00000 n
0000115064 00000 n
Für ein Überhorizontradar ergeben sich drei technische Notwendigkeiten, um diese gewünschten Reichweiten zu erreichen: 0
0000005088 00000 n
The IARU Region 1 Monitoring System newsletter reports that one of China’s HF Over-the-Horizon radars (OTH-R) has been transmitting on 6.999 MHz, impinging on the very low end of the 40-meter band.