Author Topic: Rigol DG4000: issue with output level of modulated signal  (Read 841 times)

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Offline madires

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Rigol DG4000: issue with output level of modulated signal
« on: December 22, 2016, 12:54:06 AM »
If you're looking for a signal generator for RF stuff the following might be interesting to avoid buying the wrong tool:

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Offline Radio Tech

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Re: Rigol DG4000: issue with output level of modulated signal
« Reply #1 on: December 22, 2016, 10:36:05 AM »
I agree. Mike was pretty unhappy with it. It has and  does all the functions But that output issue was strange.

Offline Orange

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Re: Rigol DG4000: issue with output level of modulated signal
« Reply #2 on: December 23, 2016, 09:38:57 PM »
My Rigol DG4102 does the same on AM modulation !

My Siglent SDG1062X does the same on AM modulation !

On my HP8657B I don't have this issue, but that is a real RF signal generator.

Moral of this story : Know your Test Equipment limitations
 

Offline Marc M.

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Re: Rigol DG4000: issue with output level of modulated signal
« Reply #3 on: December 25, 2016, 01:52:37 AM »
Having done a 3+ year stint as a bench tech back in the heyday of CB, I have a lot of respect for Mike and his work. That said, I found it a little odd that he would purchase a function gen. to use as an RF generator :-//. It certainly shouldn't have the kind of error it does (which Rigol seems to be calling a feature  ::)), but I also wouldn't expect it to be a suitable replacement for an RF generator.  There's a reason RF generators are $$$$$$ and function generators are $$. Because of his unrealistic expectations, I feel his harsh criticism is a little unfair to Rigol.
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