Near Vertical Incidence Skywave, better known as NVIS, is a technique that allows you to use HF transceivers for highly reliable short-range communication. Find out more with this attractive presentation.
Special Event Stations, DXCC Program, W100AW & W1AW QSLs via Bureau, Amateur Code, Operating Resources, QSL Service, Centennial QSO Party, NPOTA, Logbook of the World, Awards, International Grid Chase 2018, Operating Specialties, Contests, W1AW, Hiram Percy Maxim 150th Birthday Celebration
FCC License Info and Forms, Volunteer Instructors/Mentors, Courses & Training, Getting Licensed, Amateur Radio in the Classroom, College Students and Educators, Get on the Air, Volunteer Examiners, License Certificates, What is Ham Radio, Lifelong Learning
Member Directory, myARRL, Membership Certificate, Blind Membership, Join ARRL/Renew Membership, member feedback, Techquestion, OTA, Membership Levels, Dues Increase FAQ, Member Discounts, Member Support
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
NTS Manual, Ham Aid, Public Service Resources, Public Service Honor Roll, NTS, Hurricane Harvey Response, Hurricane Irma - 2017, Volunteer Form for Deployment Consideration, Hurricane Maria - 2017, Puerto Rico - Caribbean Recovery 2017, Served Agencies and Partners, 2018 Hurricanes, SKYWARN Recognition Day, ARES
ARRL References, ARRL Lab, Tech Tips, Tech Portal, Radio Technology Topics, Radio Frequency Interference (RFI)
Hamfests and Conventions Calendar, Recruiting & Outreach, The ARRL Foundation, Clubs, Donate to ARRL, Volunteer Opportunities, Youth
ARRL Publication Dealers, ARRL Store, List all Products, Return Policy, Periodicals, Customer Service/Support, Shipping and Tax, Product Notes
Privacy Policy, Site Index, ARRL Strategic Plan, Centennial, Copyright, Media and Public Relations, Library, Advertising and Other Business Opportunities, Organization Structure, General Information, Contact ARRL, ARRL Social Media, Employment Opportunities, Visit Us
ARRL, the national association for Amateur Radio
225 Main Street
Newington, CT, 06111-1400 USA
Tel:1-860-594-0200 Fax:1-860-594-0259
Toll-free:1-888-277-5289
hq@arrl.org
Contact ARRL