I remember speculation about whether installing two function generator modules would allow both outputs to be used at the same time.
At least a couple sellers say yes, it's possible:
http://www.tequipment.net/InstekGDS-2304A.html"Two function generators can be used at the same time to provide dual output signals."
http://www.bellnw.com/manufacturer/Instek/GDS-2072A.htm"Two function generators can be used at the same time to provide dual output signals."
HOWEVER,
Page 4 of the "Quick start guide for DS2-FGN" here
http://www.gwinstek.com/en/product/productdetail.aspx?pid=3&mid=7&id=1349 says differently:
"Note: Even though it is possible to install two function generator modules, only one function generator option can be used at any one time."
And yet, the "GDS-2000A brochure" (found at the same url) says exactly the same thing found on the sellers' websites. I'm sure the sellers are simply making direct quotes from page 2 of the brochure.
To add to the confusion, not only does Instek appear to both be saying only 1 can be used at "any one time" (even with 2 installed) AND both can be used at the "same time" if 2 are installed, they ALSO appear to be saying both outputs can be used with a single module installed! See page 23 of the "GDS-2000A user manual" (same url), where it says:
"The function generator outputs are used with an optional function generator module."
Okay, so it's a small stretch to interpret the last quote as definitively stating one module will allow both outputs to be used at once - but if this was the only quote a person had to go on I do think it's reasonable to interpret it that way. "Output
s" are used with "
an" optional "module"
(singular). If that doesn't mean multiple outputs are used with only one module installed, then I think it really ought to have been written more clearly.
Three different messages in the manufacturer's own documentation! What a mess!
Of course, if I had to guess which document is correct I'd assume it's the "Quick start guide for DS2-FGN".