The signal generator on 5244B has a problem. Sometimes it is making periodic "flat pauses" when it is supposed to generate a continues sine.
I have used a second scope to investigate the problem (I did not believe it in the beginning). The second scope was trigging only on these flat pauses. The flat pauses always seem to have a duration of 55ms. They can come in seemingly random intervals of down to 10 sec apart, but at other times the signal generator can work for up to 15 minutes without a glitch and then produce 3-4 pulses in the next couple of minutes.
For the documentation of these serious claims, please see the attachments. The pauses seems to occur regardless of waveform (square, ramp, etc) and frequency.
This defect has caused me much time, because I trusted my pico scope, and thought it was the DUT that was the problem.
Hi Guys, This sounds very much like a problem I had with a 2206 AWG last year. The (squarewave) output would go and sit on the rail for the region of 43ms whenever any scope setting changed and sometimes apparently at random for no reason. I would be very interested if this was fixed now for the 2206 or the 2206A. Is this true?
That is really good news! You've no idea how much hassle this has caused - mostly with problems sourcing a replacement USB controlled sig-gen. Current driver is 184.108.40.206 - please remind me how to upgrade to the latest version, I seem to have lost the ability to do this... Must try this ASAP ! Thanks
Downloaded the Beta software - it seems to be 100MB smaller than the current 220.127.116.11 ??? It can't see my 2206 scope and will only run in demo mode. Tried it with a 2204A and it does run that, but the 2204A AWG is only 100kHz and we need 1MHz. I sent you a message on email@example.com - Please could you send me the appropriate driver? Thanks
I have the system running with the v 18.104.22.168 driver now. All the 43ms drop-outs in the AWG output have disappeared !!!
Unfortunately... when the AWG is the signal source for a RF resonant circuit with 400kVAr in the reactive components, whenever the AWG frequency is changed (to track resonance) there is a horrific 'TINK' noise from the power circuit. This tells me the output is not phase continuous (like most DDS sig-gens). So following a small frequency adjustment, the resonant circuit is driven at a random new phase, instead of very close to the natural commutation point.
So, still not suitable for my application, but I readily concede - a massive improvement for the majority of users.