Rigol DHO924S bandwidth measured with a HackRF and GNU Radio Companion

Note: The HackRF documentation says that the RF Gain setting is either on or off -- it does NOT have incremental level settings. However, the HackRF's IF Gain setting DOES have incremental settings (ranging from 0 to 47 dB in 1 dB steps). Since I used the GUI slider to set the osmocom block's RF Gain and IF Gain in the script shown in the video, the IF Gain was actually controlling the gain levels.
Here is a link to the HackRF documentation
hackrf.readthe...

[@ernestb.2377]

Hi, I have not repeated any test here yet. Make sure your 50 Ohm terminator also has the sufficient bandwidth 😀

[@philipgiacalone5605]

Thanks for that comment! I just checked using a NanoVNA. The 50 ohm terminator has about 3.7 dB (+/-0.3 dB) of loss up to 400MHz, with the maximum losses at ~50 MHz and ~300 MHz. Overall, a reasonably flat response across those frequencies.

[@d.jeffdionne]

@@philipgiacalone5605 is that connected to the scope (with the input capacitance in parallel) or disconnected? I need to run the same test, actually, with the inline terminator I have here. I don't have a pulse generator here, but once I have some confidence in the inline 50ohm terminator, I'll take the thing to office (an airplane away) and see what the rise time is.

[@dayworkhard]

Can you go higher ? Let’s say 500mhz or above. The chip from teardown can reach 800Mhz.