A TW XTAL house sent me a prototype crystal run with QA data to 6 d.p., so thats beat my meager attempt by quite a bit. That was SSB filter XTALS for the Drake TR rigs.
Such gear is so far beyond most Amateur uses I cant imagine who'd want it. Ive used it to exactly verify network calculations and components, but how often is that done?
An inexpensive Nano could be used for general testing but a VNA isnt really suitable for that, it expects a characteristic R-50 termination.
Most of my testing is with a B&K 5.5 digit DMM to measure a capacitor, and resonant circuit with an AWG and MW diode probe (10 USD), to calculate inductor values. But thats $1000 USD in gear.
The B&K handheld LCR Meters are now up to 500 USD, but not great for RF use.
The B&K handheld LCR Meters are now up to 500 USD, but not great for RF use.
????
On Wednesday, July 15, 2026, David VK2CZ via groups.io <16240244c1=gmail.com@groups.io> wrote:
Hello Dave,Your development sounds very interesting. Having spent 10 years of my career in manufacturing a significant amount of RF systems with NEC and Ericsson, component validation was only sampled using frequencies up to 5kHz.. we relied heavy on manufacturer QA.If was to assess say a resistor at say 50Mhz, I'd probably use a component jig with a network analyzer.. then of course using kelvin clips become useless..That said, still thinking of possible applications.David VK2CZ
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