I've had my Siglent SDG2042X for about 2 years. I really like it. It is a quality piece of equipment. I highly recommend it. Now if I can just find out if the hack instructions work with the latest firmware, I can increase its bandwidth from 40 MHz to 120 MHz.
I've had my Siglent SDG2042X for about 2 years. I really like it. It is a quality piece of equipment. I highly recommend it. Now if I can just find out if the hack instructions work with the latest firmware, I can increase its bandwidth from 40 MHz to 120 MHz.some users said you should downgrade the FW and hack it, then you should upgrade the FW:
https://www.eevblog.com/forum/testgear/siglent-sdg2042x-hack-door-closed/msg2409867/#msg2409867
have you tried it?
Thanks
Small caveat:
Above and close to 40 MHz the voltage (peak to peak) measured on the 100MHz scope drops as the frequency increases. This was with proper 50 Ohm termination on the scope (suitable for DC-1GHz) and 50 Ohm output on the signal generator. Before doing the test, the scope was calibrated again.
For a 2Vpp output sine wave, it will drop roughly 100 mV (varies a bit) until it reaches 100 MHz, above that it slowly starts to drop a bit more, peaking at a loss of roughly 180 mV.
(If you have an "improved" DS1054Z, its real bandwidth was shown to be 130..150 MHz). So I would actually expect a more pronounced roll-off than what you describe here.
I do have the DS1054Z modified to 100 MHz, yes. Do you have any reference (videos/graphs) for the real bandwidth being 130..150MHz?
Weird, now I noticed that I can't set the signal gen's output to higher than 5 Vpp if I go above 20 MHz. Up to 20 MHz I can set it up to 10 Vpp. I don't remember if that worked before the hack/firmware update. (Judging based on Dave's video linked above, it seemed to be possible...)
Max 20Vpp≤20MHz, HiZ load
Max 10Vpp>20MHz, HiZ load
Small caveat:
Above and close to 40 MHz the voltage (peak to peak) measured on the 100MHz scope drops as the frequency increases. This was with proper 50 Ohm termination on the scope (suitable for DC-1GHz) and 50 Ohm output on the signal generator. Before doing the test, the scope was calibrated again.
For a 2Vpp output sine wave, it will drop roughly 100 mV (varies a bit) until it reaches 100 MHz, above that it slowly starts to drop a bit more, peaking at a loss of roughly 180 mV.
Hi Everyone,
Is the hack still available if my firmware is at 2.01.01.22R5?
Thanks