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Download automatic packet reporting system (APRS) software.
Blog by Sunil Thomas Thonikuzhiyil of Kanjirampara. Trinvandrum, India features homebrew tuner, SDR
Resource for PSK31 setup and operation. Email discussion list.
Gives history, use and some technical information.
Information on modern modes of HF digital ham radio, band propagation, antenna page and files for do
ARRL: PSK31 Spec - Provides information on PSK31 including varicode characters, convolutional code a
Monthly magazine of the ARRL with articles on technical advances, news, construction projects, conte
Japanese amateur shares his equipment list and station information, and photos. [English and Japanes
Japanese operator presents station information, photos and links. Includes a page on low pass filter
Information about a specialist range of standalone, DOS and Windows HF and VHF radio digital signals