Search found 4 matches

by chris2u
Mon Jan 09, 2017 12:29 pm
Forum: FG085
Topic: Low level constant Noise/Hash on the output
Replies: 1
Views: 12366

Low level constant Noise/Hash on the output

It looks like there is some constant higher frequency hash or pulses on the FG's output.. Here is a pix of a 1KHz/0.1V square wave. http://i338.photobucket.com/albums/n409/chrisnelson242/Good%20SQ%20wave.jpg Same again but with a sine wave. http://i338.photobucket.com/albums/n409/chrisnelson242/Good...
by chris2u
Mon Jan 02, 2017 5:22 am
Forum: DSO Shell
Topic: Trouble with calibration (C5 has no effect, bat test signal)
Replies: 5
Views: 8496

Re: Trouble with calibration (C5 has no effect, bat test sig

It's C3 that you have to adjust with the .1V signal.. I found that with the test signal at .1V (with couple switch set to AC) and with the sensitivity set to 50mV, I could adjust the waveform OK with C3. With the test signal set to 3.3V and the sensitivity set to 1V, I could not completely get rid o...
by chris2u
Mon Jan 02, 2017 5:06 am
Forum: DSO Shell
Topic: Firmware update
Replies: 7
Views: 10406

Re: Firmware update

I guess it will be necessary to install a header for the updates?
by chris2u
Fri Dec 16, 2016 3:22 pm
Forum: DSO Shell
Topic: Some (hopefully) useful information for beginners
Replies: 2
Views: 6442

Re: Some (hopefully) useful information for beginners

Thanks for some good constructional advice there :)
You could also use a simple 5v to 9v converter and then it would be easy to run from a power bank or usb socket for portability..
http://www.ebay.com.au/itm/USB-Step-Up- ... rter-Plug/