Quick question for anyone out there,
I just purchased this,
Hantek HT6022BE20Mhz 6022be PC Based USB Digital Storage Oscilloscope, 20 MHz Bandwidth, and I'm using it to experiment with LC tuning circuits, I built a simple CE amplifier for this tuned circuit to feed into, and checking for gain on the output.
Now first I am using my 100MHZ analog oscilloscope, and checking input,output waveforms, everything looks normal with gain.
When I hook up my usb scope in place of the analog scope, the waveforms are impeded and both input and output waveforms drop, and it shows close to unity gain on the waveform.
Both scopes have the same input impedance of 1Mohm, and 25pf, I switched probes and still got the same results, analog no attenuation, usb scope attenuation on the waveforms.
My analog scope has both AC and DC inputs, the usb has only DC input.
I have capacitor coupling for the signals to both probes.
My question is this, can this be expected from a very inexpensive usb scope $55, or is this just inherent with DSO oscilloscopes.
Thanks for any advise on this issue.
I just purchased this,
Hantek HT6022BE20Mhz 6022be PC Based USB Digital Storage Oscilloscope, 20 MHz Bandwidth, and I'm using it to experiment with LC tuning circuits, I built a simple CE amplifier for this tuned circuit to feed into, and checking for gain on the output.
Now first I am using my 100MHZ analog oscilloscope, and checking input,output waveforms, everything looks normal with gain.
When I hook up my usb scope in place of the analog scope, the waveforms are impeded and both input and output waveforms drop, and it shows close to unity gain on the waveform.
Both scopes have the same input impedance of 1Mohm, and 25pf, I switched probes and still got the same results, analog no attenuation, usb scope attenuation on the waveforms.
My analog scope has both AC and DC inputs, the usb has only DC input.
I have capacitor coupling for the signals to both probes.
My question is this, can this be expected from a very inexpensive usb scope $55, or is this just inherent with DSO oscilloscopes.
Thanks for any advise on this issue.