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Tag Archives: NorCal 40
It’s antenna time!
For years, I’ve been a ham without an antenna. My excuse, while I worked in academia, was that I could use the university club station any time, but in truth, I’ve always been the kind of ham who goes through … Continue reading
The Plan
I’ve been thinking for some time about a DSP-based ham radio. After
considering and discarding more grandiose schemes, I was inspired by my
Norcal 40A. It and the original Norcal 40 are fairly simple and highly
reproducible (thousands were built). However, performance was not
sacrificed in the name of simplicity. Instead, the rig was carefully
designed to make the most of its NE602 mixers and crystal filter.
Why not try for the same goals in a DSP-based rig? In theory, one should
be able to subsume all of the IF and most of the RF and baseband into…. Continue reading
Posted in Projects
Tagged delta-sigma, DSP, FPGA, multirate, NorCal 40, radio, SDR, software-defined radio
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