Products > Test Equipment
Hantek HDG2002B AWG: 5Mhz or 100MHz? Let's see!
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tinhead:
yes, please make a full dump of the NAND (with oob blocks).
Dutchman:
Hi guys,

Not to go off-topic but..
Been lurking around this thread trying to gather info on this FG. A lot of techincal details here. It looks nice but how does it function? UI pretty good, I gathered there are some minor bugs? Accurate, stability? Overall pleased with it?
The large screen is one of the "selling points" for me..

Any info would be greatly appreciate it.
Bart

idpromnut:
@Dutchman: I did the following quick test: I fed a 10MHz reference from my DIY Rb Freq Standard to my 'scope, and fed both the HDG2002B's reference clock and outputs into the second input on my 'scope.

I found them to be way off. But even worse was when I tried feeding the 10MHz Rb reference to the HDG2002B and then measuring the output against the same 10MHz reference from the Rb; there was massive phase error/shifting between the two. Either I am doing something wrong in my testing, or there is some pretty horrible phase noise on the outputs of the HDG2002B (and it must be introduced internally).

So I must conclude for the moment that if you need a signal source that you can synchronize with other instruments in your lab, this is not the signal source to use.
Dutchman:
@IDPROMNUT.
Thanks for the info.
Meanwhile I've also checked with Hantek sales since I wanted info on warranty.
Hantek responded that these items are not available in the States, could not provide any info regarding if or when it will be.
Warranty part of the question went un-answered. Looked like a nice unit...but i'll pass.

Also was looking at their scopes....but in the end I went today with a Rigol DS1074z and a Siglent DG1025 from  Tequipment.net.
"Local" supplier with a good return policy...Also if anything is/goes out of whack in the first 30 days, they handle it.

EEVblog discount was nice as well (6%).


Regards Bart
rdg:
I started to make a dump of the flash, for some reason when I get to doing mtd3 (the rootfs) it runs forever generating 500 MB or more until I kill it.
Am I doing something wrong? I am just using:

nanddump -b -f /mnt/udisk/dump/ROOTFS.bin /dev/mtd3
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