Thanks to some prompting from a Willamette builder who inquired about some performance issues with his rig, I was able to identify an error in the bill of materials which causes a significant degradation in receiver sensitivity. Fortunately the fix for this problem is very simple. Audio preamplifier collector resistor R49 was incorrectly called out [...]
Software Defined Radio is a technology which has always intrigued me, but something I just haven't been able to devote a lot of time to yet. I've built an early model SoftRock and studied the basics of the theory. Not too long ago, I built up my own little version of a 40 meter SDR [...]

