1.3 GHz active scope probe with FET input, v1.0Designed by MakerProbe in Germany
What is it? A 1.3 GHz active scope Probe with FET input and very low input capacitance (about 0.3 pF) minimum frequency: 100 kHz attenuation 1:10 (1:20 with 50 Ohm termination) supply with 5V, u.…Read More…
A 1.3 GHz active scope Probe with FET input and very low input capacitance (about 0.3 pF)
For powering, see https://www.tindie.com/products/makerprobe/usb-5v-to-sma-dongle/ - also available as an accessory option on this page
This is a nice low-cost addition to your scope accessory arsenal for cases when the stock probes of a cheap oscilloscope just can't do the job.
I made this probe to measure oscillators with low load capacitance, when my stock oscilloscope probes would probably detune the circuit too much.
See here for a little example: https://hackaday.io/project/184924-diy-13-ghz-fet-probe/log/213125-measuring-an-sx1280s-oscillator-frequency
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