>From: "Mark J. Bailey" <[email protected]> > >do recall what it was called? was it just fed into a run-of-the-mill dsp on >a sound card or a specialized card coupled with the software??
I'd bet he was seeing Digipan (http://www.digipan.net); there's a similar Linux app Linpsk (http://linpsk.sourceforge.net/). Do note that these apps work with a fairly small slice of spectrum. (on the order of 2.5-3KHz) It works with a standard soundcard. The only out-of-the-ordinary hardware is a single-transistor interface between a COM port and the transmit/receive switching line on the radio. GNU Radio (http://en.wikipedia.org/wiki/GNU_Radio) has come up with a DSP hardware arrangement that will take up to 16MHz of spectrum. (they have succeeded in decoding over-the-air digital TV broadcasts) CW Skimmer (http://www.dxatlas.com/CwSkimmer/) is a Windows app that can, given appropriate hardware, simultaneously decode Morse signals across most of an amateur band. It might give one some hardware ideas. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "NLUG" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nlug-talk?hl=en -~----------~----~----~----~------~----~------~--~---
