Electronics > Projects, Designs, and Technical Stuff
Trasistor Cruve tracer + Hameg 1004-3 XY weirdness
<< < (4/5) > >>
Gertjan:
Hi AngraMelo,

Try switching the on-screen readout of the HM1004 off. (Long push on the button under the Intensity knob)
In my experience the readout sometimes interferes with the traces. (the readout text is written with the same cathode ray beam as the traces, switching to and fro. At some frequencies there is interference....)

Regards, Gertjan.
AngraMelo:

--- Quote from: Gertjan on October 16, 2019, 05:49:44 am ---Hi AngraMelo,

Try switching the on-screen readout of the HM1004 off. (Long push on the button under the Intensity knob)
In my experience the readout sometimes interferes with the traces. (the readout text is written with the same cathode ray beam as the traces, switching to and fro. At some frequencies there is interference....)

Regards, Gertjan.

--- End quote ---

Hello Gertjan,
Unfortunately it didnt get any better, do you know if there is a way to limit the bandwidth?
AngraMelo:

--- Quote from: TERRA Operative on October 16, 2019, 02:37:01 am ---I have 10cm leads from the PCB to binding posts on the front panel, then I use 10cm banana to test hook leads to attach the transistor etc.

As long as I keep the test leads spaced apart, I get no issues at all.

--- End quote ---

That is interesting, so the distance between the leads are more important than their length?
Gertjan:
Hi AngraMelo,

Sorry to hear that switching off the on-screen readout was not the solution for your problem.

The Hameg HM1004 doe not have a bandwidth limit function. It is not very necessary, as the specced bandwidth is only 100MHz.
(Although I measured mine to have 150MHz (-3dB) bandwidth. CRT and Y amplifiers are identical to the HM1507. It is really a very nice scope!)

Regards, Gertjan
TERRA Operative:
Hmm, do you have access to another scope so we can narrow it down to either a curve tracer problem or maybe a faulty or weird scope?
Navigation
Message Index
Next page
Previous page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod