It is an easy to use ham radio chat program for extra reliable text transmissions over long distance. It is a Soundcard based audio data Modem which does encode / decode TeleType signals based on the well known and very reliable DTMF (dual-tone, multi-frequency) system. The DTMF (dual-tone, multi-frequency) system is also referred to as tone dialling used in millions of touch tone phones. The signal is encoded as a pair of sinusoidal (sine wave) tones which are mixed with each other. DTMF is used by most PSTN (public switched telephone networks) systems for reliable number dialling, and is also used for voice-response systems such as telephone banking and over private radio networks to provide reliable signalling and transferring of small amounts of data.
Vital plug-ins for an enhanced Winamp experience! Rip, convert music to OGG Vorbis form
PMP Exam Software offers 3 different sample exams with 200 questions each
Is free and open source application for university and school course timetabling
This is guitar chord help system. 600 chord tabs in this version
Tekkids 1 is an interactive application developed for kids
The Xerte Project provides open source tools for elearning developers to create interactive learning materials
CT Art takes you into a carefully thought out chess learning sequence
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