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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!
A complete guide for implementing PSK31!
Practical lessons and approaches in radio receiver design for wireless communication systems.
Gain a working knowledge of DSP applications, including communications and process control.
An understandable presentation and reference on DSP in contemporary communications technology.
Special Event Stations, DXCC Program, Operating Resources, Awards, International Operating, QSL Service, Operating Specialties, Contests, W1AW, Amateur Code, Centennial QSO Party, Logbook of the World
FCC License Info and Forms, Volunteer Instructors/Mentors, Courses & Training, Getting Licensed, What is Ham Radio, Volunteer Examiners, College Students and Educators, Amateur Radio in the Classroom, Get on the Air
Join ARRL/Renew Membership, Member Directory, myARRL, Membership Certificate, Membership Levels, Member Support, Member Discounts
Federal, State and Local, Technical Relations Office, Volunteer Consulting Engineer Program, Volunteer Counsel Program, Antenna Regulation and Zoning, CCR Study Information, International, Federal RFI Preemption
Public Service Honor Roll, Ham Aid, Public Service Resources, ARES, Served Agencies and Partners, NTS
ARRL References, ARRL Lab, Radio Technology Topics, Radio Frequency Interference (RFI)
Volunteer Opportunities, Youth, Hamfests and Conventions Calendar, Donate to ARRL, Recruiting & Outreach, The ARRL Foundation, Clubs
ARRL Publication Dealers, ARRL Store, List all Products, Periodicals, Shipping, Customer Service/Support, Product Notes
ARRL, the national association for Amateur Radio
225 Main Street
Newington, CT, 06111-1494 USA