Hi gang,

Reading through the instructions for this VNA it mentions some
important accessories; power spitters, 6db attenuators, 50 ohm
terminations, opens, shorts and throughs. What exactly is a "through"?
And is it possible to make up accurate opens and shorts oneself that
are good enough for calibration purposes up to 1.3Ghz? Not talking
about any absolute standard here, like you'd get from HP themselves;
but just mid-tolerance stuff that'd be sufficient for reasonably
accurate amateur experiments?
Thanks,
p.