Looking for good cheap Function Generator

[valentinc]

That is why I started this I wanted to know if the Rigol DG1022 is any good.

      The Rigol DG1022 is very good in terms of what you can buy for that sort of money. Personally I have a Siglent SDG1020, which is pretty much the same as the Rigol, only it has a bigger color screen, more waveform memory (4Kpts vs 16Kpts) and bigger resolution DACs (14 bits for both channes vs 14 bit CH1/10bit CH2)... higher sample rate (125 MSamples/s vs 100 MSamples/s)

I talked to my boss and he said if he lets me buy one it will need to have AM, FM and Sweep waveforms.

      If this is a must, then clearly an old analog function generator is almost excluded, this one has AM, DSB-AM, FM, PM, sweep, burst... And of course, you have the advantage of arbitrary waveforms... Which an analog gen can't do...

     

[edavid]

I talked to my boss and he said if he lets me buy one it will need to have AM, FM and Sweep waveforms.

A couple of good analog choices: HP 3312A or Leader LFG-1300S.

It's a little odd that you want a function generator for audio testing though... why not an audio generator?

[WakeUpWolfgang]

We will do have other uses for function generators but we got by without. If we do get a function generator we can use for other stuff besides testing speakers. We do have ways to test speakers but we don't have a way to find out what frequencies are not working. We would also use it for testing and designing circuits.

[Winston]

HI
I've been looking for one too. John boxall did this review
http://tronixstuff.wordpress.com/2013/02/06/kit-review-jye-tech-fg085-dds-function-generator/

Looks ok for basic audio, but would be good to see it put to real test. but for less than $50 ...

That's the same unit I posted about in my Reply #13 above and linked to a few YouTube reviews.  Being an inexpensive DDS unit, I don't know if it would be good for precision tests of audio equipment, but for what the OP needs and what I need, it's fine.  No real financial advantage to building the kit since the built and tested version with front panel is only US$60.

I just noticed a new post by the OP saying that his boss for some reason wants AM and FM modulation capabilities which this DDS unit doesn't provide.  That's not in line with the original claim that the unit was simply to audibly test the frequency range of speakers (I assume with crossover circuits), but may be a desire by his boss to test the susceptibility of the speaker system under test to the induction of AM and FM broadcast signals into the speaker wire runs, the AM ones potentially being made audible through the speakers via rectification in the power amp's final output transistors.  However, any accurate test of that would require modulated RF in the broadcast bands to be tested against.