I have some questions relating to your hard- and software.
I had to use a 1.8 meter USB cable to connect the PCSGU250 to my PC. Are there any known problems with a longer USB cable?
The Spectrum Analyzer stores only 255 coefficients to file. But according to the manual it uses a FFT with 2048 lines. It should therefore store 1024 or 2048 coefficients. Will this be fixed in the next release of PcLab2000LT?
I think that the manual must be slightly expanded in the passages in which the Spectrum Analyzer is described: The user should turn off the trigger, otherwise, for example, at a Frequency Range of 1.2M, a signal of 500 kHz will not shown.
[quote]I had to use a 1.8 meter USB cable to connect the PCSGU250 to my PC. Are there any known problems with a longer USB cable?[/quote]The current consumption of the PCSGU250 is rather high, about 400mA.
There may be problems with longer USB cables.
You may use a self powered USB hub.
[quote]The Spectrum Analyzer stores only 255 coefficients to file. But according to the manual it uses a FFT with 2048 lines. It should therefore store 1024 or 2048 coefficients. Will this be fixed in the next release of PcLab2000LT?[/quote]In the PCSGU250 the FFT takes 4096 sample points and returns 2048 frequency lines.
Only the visible portion of data is printed to the file.
The frequency resolution is same as seen on the screen.
You get more detailed data to the screen and to the file by using the zoom function, e.g. Zoom x8.
[quote]I think that the manual must be slightly expanded in the passages in which the Spectrum Analyzer is described: The user should turn off the trigger, otherwise, for example, at a Frequency Range of 1.2M, a signal of 500 kHz will not shown.[/quote]Thank you for this notification.