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HRN 63 Part 3: ARCHIVE - SDR Forum from the 2009 Hamvention
In Part THREE of the 2009 Hamvention SDR Forum, Scotty Cowling WA2DFI updates the state of the HPSDR Project. Then former ARRL President Joel Harrison W5ZN looks at SDR from the operator's perspective.
The HPSDR talk will probably be a little arcane.. ok, a lot arcane.. unless you're into that project. HPSDR was.. still is.. a set of boards that TAPR and HPSDR developed as kits that eventually built an SDR HF transciever. This was full direct sampling SDR before any manufacturer was doing it (years before). The boards included a receiver, transmitter, power supply, amp, audio I/O, control, a back plane, etc.
The system progressed over the course of almost a decade, and every year at TAPR forums and conferences, Scotty updated the progress until a whole radio was complete. Lots of slides with some text and some pictures of the boards. That part of the show gets a Radio Rating of C-, which you'll say is too generous if you're not into HPSDR, but you might say doesn't respect the historic nature of this forum if you are into it.
Joel's talk is more accessible to the 'average' ham. He's got some slides, too (text, charts), but for the audio listener, he gets a Radio Rating of B+.
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By Gary Pearce KN4AQ, Amateur Radio//Video NewsIn Part THREE of the 2009 Hamvention SDR Forum, Scotty Cowling WA2DFI updates the state of the HPSDR Project. Then former ARRL President Joel Harrison W5ZN looks at SDR from the operator's perspective.
The HPSDR talk will probably be a little arcane.. ok, a lot arcane.. unless you're into that project. HPSDR was.. still is.. a set of boards that TAPR and HPSDR developed as kits that eventually built an SDR HF transciever. This was full direct sampling SDR before any manufacturer was doing it (years before). The boards included a receiver, transmitter, power supply, amp, audio I/O, control, a back plane, etc.
The system progressed over the course of almost a decade, and every year at TAPR forums and conferences, Scotty updated the progress until a whole radio was complete. Lots of slides with some text and some pictures of the boards. That part of the show gets a Radio Rating of C-, which you'll say is too generous if you're not into HPSDR, but you might say doesn't respect the historic nature of this forum if you are into it.
Joel's talk is more accessible to the 'average' ham. He's got some slides, too (text, charts), but for the audio listener, he gets a Radio Rating of B+.