We use data physics controllers, they start off as simple swept sine but can be upgraded to sine on random etc as the need arrises. They build systems with multiple channels and are quite comprehensive. I would start at a DP550 as it provides the best starting point for upgrades etc.
I've had...
Hi
We've got two Data Physics ACE PCMCIA card based FFT aalysers. It's got 2 inputs and 2 outputs, it can go to a bandwidth of 20kHz and up to 25000 fft lines.
When I first got the flyers from them they had the units in a tablet, but they can't get the tablets now so they ship them in laptops...