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The San Bruno Amateur Radio Club





Digital Topics

NameDescription
WSJT - Weak Signal Communications WSJT-X, WSJT, MAP65, and WSPR are open-source programs designed for weak-signal digital communication by amateur radio. Normal usage requires a standard SSB transceiver and a personal computer with soundcard, or the equivalent. SDR-style hardware including the SDR-IQ, Perseus, SoftRock, and FUNcube Dongle is supported by MAP65 and WSPR. SimJT is a utility program that generates simulated signals for test purposes. All of the programs are available free of charge, licensed under the GNU General Public License. Installation packages for WSJT-X are available for Windows, Linux, and OS X; WSJT and WSPR have Windows and Linux packages, and MAP65 and SimJT are Windows only. For further details about source code and operating systems, see the Program Development page.
Wires-X Active Room ID List A guide to active Wires-X rooms
WebSDR A WebSDR is a Software-Defined Radio receiver connected to the internet, allowing many listeners to listen and tune it simultaneously. SDR technology makes it possible that all listeners tune independently, and thus listen to different signals; this is in contrast to the many classical receivers that are already available via the internet. WebSDR was first conceived as a means to make the 25 m radio telescope at Dwingeloo available to many radio amateurs for EME reception. In order to test a preliminary version of the software without using the 25m dish, a shortwave WebSDR was set up on Christmas Eve 2007 at the radio club of the University of Twente. After further development, its existence was publicly announced in April 2008. Interest for the project has been large since then, and many amateurs worldwide have expressed an interest in setting up their own WebSDR server. In November 2008, a beta testing phase has started with a few selected stations. By now, the software is made available to anyone serious about setting up a server; see the FAQ for information on this.
The ION2G software The ION2G software brings HF Automatic Link Establishment (ALE) MIL-STD-188-141B to your computer with a familiar and easy to use interface. ION2G helps you stay connected to the people you need to communicate with across thousands of miles without dependence on infrastructure. Using ALE and smart algorithms, ION2G automatically finds HF radio communications channels through the constantly changing ionosphere -- while avoiding busy HF frequencies and interference. ION2G takes the guesswork out of finding a frequency to use and will find usable radio channels that even experienced HF operators may miss.
Node-Ventures ClearNode is a pre-configured Raspberry Pi based AllStar, EchoLink & Digital Modes simplex node with an integrated low power UHF (or VHF) FM radio transceiver. Digital modes now include DMR, P25, YSF, FCS and NXDN.
Automatic Packet Reporting System APRS is now in its 25st year! APRS is digital communications information channel for Ham radio. As a single national channel, it gives the mobile ham a place to monitor for 10 to 30 minutes in any area, at any time to capture what is happening in ham radio in the surrounding area. Announcements, Bulletins, Messages, Alerts, Weather, and of course a map of all this activity including objects, frequencies, satellites, nets, meetings, Hamfests, etc. The APRS network has grown to most countries with strong Amateur Radio populations.

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