I just noticed on Sherwood Engineering’s website ( http://sherweng.com) that Rob has announced his retirement, and is no longer selling the Drake, etc. upgrade products that he has offered. No mention of what will become of his receiver test data, or how long the website will remain up.
Brad Tombaugh (W0BDT)
Yaesu FT-60R - AnyTone AT-D878UV Plus - AnyTone AT-D578UVIII Pro - Yaesu FT-991A - Diamond X50A - MFJ-2299 - PreciseRF HG-1 "WR" Magnetic Loop Antenna