Thanks for the tutorial. Had this unit for awhile but never tried the arbitrary waveform feature. After watching your video, got me motivated. Worked well. Very easy to do. Thanks for video!
the "modulated" is commonly referred to as "the carrier". The s/w could use a function to define the impedance of the load. That would make the amplitude selection more accurate.
I got one of these today and didn't even imagine it wouldn't have SAWTOOTH as a built-in waveform (it has the ladder functions which are similar at higher frequencies I suppose), so at least I can try to use one of the save-slots for sawtooth then
Sure it does. Select a triangle waveform and adjust the DUTY (duty cycle) knob to 50% or whatever you want. Or, as I showed in this Part 2, you can very easily define whatever you want in software.
@@EETechStuff oh wow thank you very much actually! I didn't expect duty cycle since it only worked for certain waveforms, i guess triangle is one of them, that's awesome though.
Thanks for the fine presentation! I have notice a problem. I am monitoring the output signal level for a pure sinewave at 1 Mhz with my spectrum analyzer (tinysa). I created the amplitued modulated signal as you discribed in your video. The modulation frequency is 1 kHz and the carrier is 1 Mhz ( a factor of 10). The carrier level for an unmodulated sinewave is about 0 dBm. When I use the modulated carrier, the level drops to -33 dBm. Are we generating a Double Sideband Suppressed Carrier or am I doing something wrong?
I just bought a new FY 6800. The manual is not very good. I am working with frequencies driving speakers and I am having a time. Sometimes it works fine and sometimes it will not work. I don't understand what is going on yet.
If I were to make an arbitrary waveform, how do I ultimately determine what the frequency is? For example, when I set the frequency for an arbitrary waveform, does the frequency refer to how many times that full waveform is being executed per second, or the sine or square waves within?
The idea is the "drawn" waveform per period. In his example, the modulating waveform was one period, the carrier was 10x period. So if you set the generator to 1khz with this new waveform, you have a 1khz modulated 10khz carrier.
If you mean a square wave going from 0v to +X volts, you'd eitherset your offset to 1/2 your peak to peak voltage or use CMOS which defaults the offset to always have the lower part of the wave at 0v.
I mentioned multiple times in the two review videos that, as with many Chinese products, the same device is rebranded under different vendor and model names. And I listed some of the other vendor names and model names for the same device, and one device name was "JDS6600". And maybe you didn't notice but the title of the software I was running was also "JDS6600". So how about googling "JDS6600 software download" and see what you get? (Hint: you should get "joy-it.net")
