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, Operating Resources, Operating Specialties, Awards, W1HQ, International Operating, Tutorials, Contests, W1AW, Logbook of the World, QSL Service
Amateur Radio in the Classroom, FCC License Info and Forms, Licensing, Preparation & Exams, Courses & Training, Volunteer Instructors/Mentors, Get on the Air, Volunteer Examiners
Join ARRL/Renew Membership, Member Directory, myARRL, Membership Certificate, Membership Levels, Member Support, Member Discounts
CCR Study Information, Federal, State and Local, Technical Relations Office, Volunteer Consulting Engineer Program, Volunteer Counsel Program, Antenna Regulation and Zoning, International
Public Service Honor Roll, Ham Aid, Involvement Opportunities, Public Service Resources, ARES, NTS
ARRL References, Radio Frequency Interference (RFI), Radio Technology Topics, ARRL Lab
The ARRL Foundation, Volunteer Opportunities, Hamfests and Conventions Calendar, Donate to ARRL, Recruiting & Outreach, New to Ham Radio, Youth, Clubs
ARRL Publication Dealers, ARRL Store, List all Products, Shipping, Product Notes, Periodicals, Customer Service/Support
ARRL Social Media, Organization Structure, Media and Public Relations, Advertising and Other Business Opportunities, Employment Opportunities, Copyright, Contact ARRL, Privacy Policy, General Information, Site Index, Visit Us, Centennial
ARRL, the national association for Amateur Radio
225 Main Street
Newington, CT, 06111-1494 USA
Tel:1-860-594-0200 Fax:1-860-594-0259
hq@arrl.org
Contact ARRL