开云体育

try these out,, i too have been trying to get better cal kit just for the nanovna, i made set of
so239 (see my post "Calibration, Compensation, DIY Parts Hacking!...... My First Post!") and i think
its ok but i still want to order these( ) and see if my tinkering is ok, plus having a factorie cal set will let me build more stuff knowing i have more then one standard to rely/test on on.. good
luck
KK6DBR