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An introductory guide to SDR and DSP technologies. Discover why your next radio will be SDR!
Special Member Price! Only $19.95 (regular $22.95)
A step-by-step guide that will get you started in the fascinating world of HF digital technology!
Special Member Price! Only $22.95 (regular $25.95)
Your complete guide to the most widely-used VoIP systems used by hams: EchoLink ,IRLP, eQSO and WIRES-II.
A guide on the two most popular data modes used today, RTTY and PSK31. Expanded and fully updated!
The first comprehensive reference to the world of D-STAR operation. Experience the excitement!
Convenient desk-top holder for all hand-held radios. Holds your radio upright and steady at a comfortable viewing angle.
A complete guide for implementing PSK31. Get PSK31 up and running quickly and easily!
Practical lessons and approaches in radio receiver design for wireless communication systems.
Special Event Stations, DXCC Program, QSL Service, Operating Specialties, W100AW & W1AW QSLs via Bureau, Amateur Code, Contests, Operating Resources, Centennial QSO Party, Awards, International Operating, W1AW, Logbook of the World, NPOTA
FCC License Info and Forms, Volunteer Instructors/Mentors, Courses & Training, Getting Licensed, Volunteer Examiners, College Students and Educators, Amateur Radio in the Classroom, What is Ham Radio, License Certificates, Get on the Air
Member Directory, myARRL, Membership Certificate, Member Discounts, Blind Membership, Member Support, Dues Increase FAQ, Membership Levels, Join ARRL/Renew Membership
State and Local, Technical Relations Office, Volunteer Consulting Engineer Program, Volunteer Counsel Program, Antenna Regulation and Zoning, CCR Study Information, International, Federal RFI Preemption, Federal
NTS Manual, Ham Aid, Public Service Resources, ARES, NTS, Public Service Honor Roll, Served Agencies and Partners
ARRL References, Radio Technology Topics, ARRL Lab, Radio Frequency Interference (RFI), Tech Portal
Volunteer Opportunities, Youth, Recruiting & Outreach, The ARRL Foundation, Hamfests and Conventions Calendar, Donate to ARRL, Clubs
ARRL Publication Dealers, ARRL Store, List all Products, Periodicals, Return Policy, Product Notes, Customer Service/Support, Shipping
ARRL, the national association for Amateur Radio
225 Main Street
Newington, CT, 06111-1494 USA