I am looking a way to generate an audio tone lets say 600hz sine wave over any higher sine wave frequency within the range of 500khz to 2Mhz. I mean the tone will be always 600Hz meanwhile I can choose a specific sine wave of high frequency according to my needs i.e 1200Khz. I am looking for a way how to modulate with 600Hz and using the 1200Khz as carrier and have a unique signal at the output of the generator. By looking at the Wave editor help of the PCSGU250 I found nothing of how to mix two signals.
[quote]I am looking for a way how to modulate with 600Hz and using the 1200Khz as carrier and have a unique signal at the output of the generator.[/quote]I’m sorry, this is not possible.
The only way to generate multiple frequencies simultaneously is to use ‘self made’ library waveforms.
The maximum usable frequency ratio in this case is still limited due to the number of library waveform samples (512). The ratio of 600Hz to 1200kHz is too high to achieve.
Please let me know how to do a ‘self made’ library for a multiple frequencies simultaneously within the usable frequency ratio for the band 500Khz to 1500khz. Ie. If I have to use 10khz or 100khz or even 1000Khz as one frequency and 1200khz as the other frequency is still fine with me.
You can use Excel or another spreadsheet application to make the ‘image’ of your own waveform.
There should be 512 data points in the waveform data.
When done, you can copy the data to clipboard and paste to the Wave Editor.
Then save the waveform file.
In the function generator click MORE FUNCT button and then click the LIB button.
Open the saved waveform file.
Here you can download an Excel workbook to create amplitude modulated (AM) and frequency modulated (FM) data files: app.box.com/s/49rhu5s45sy01cfonz76
The default setting for frequency ratio is 1 to 12.
There are more instructions in the workbook.
Just copy the 512 values in column C to clipboard and paste them to the Wave Editor and save the wave data file.
In the function generator, open the wave data file and set the function generator’s frequency to 100kHz.
The output will be 1200kHz wave modulated with 100kHz.
Change the FC value to 24 to get the frequency ratio of 1 to 24.
Use 50kHz as the function generator frequency to get 1200kHz output modulated with 50kHz etc…
Here a screenshot of the PCSGU250 settings and the output waveform seen on the oscilloscope screen:
