EEVblog Electronics Community Forum
Products => Test Equipment => Topic started by: Sailor on April 15, 2014, 09:23:31 am
-
My ebay present arrived this morning - an unmarked, looks-like-new MSO7054B. :-+ But almost immediately I had to go out working on the water, so I haven't had much time to play :( Everything seems to work as expected, except for one thing (there's always just one thing!) In spite of it having 8MSa memory, all the acquisition setups, horz time/div, etc seem to lead to sampling rates that lead to just 1Msa being acquired, and that's in SINGLE-SHOT mode. If the trigger is NORMAL, the sampling rate drops to half of the SINGLE mode. That last bit is explained in the User Manual, except in the reverse sense i.e. SINGLE is bigger/better. As an example of what I am talking about, setting the timebase to 10ms/div and doing a SINGLE acquisition causes the sampling rate to be just 10MSa/sec.
Is there something that I am missing, that allows me to force a higher sampling rate, or ...?
I hope someone has good news.
Sailor
-
I feel that you need to install the 8M option to get 80Msa/s @ 10ms/div (single).
-
Thanks, but I thought that it's not an option - it's standard on these scopes. Unless I'm wrong, which has been known before now ;D
-
The 8 Mpts MegaZoom III deep memory is also a standard for 6000 series now, but not in the past. It might be your case, please check what options are installed.
-
Hmmm... that's interesting. I have data sheets for the 7000A (dated 2007) and the 7000B (dated 2011), and they both say 8M is standard. I believe that my scope is 2010. I also have User Guides, one of which is for the 5000/6000/7000 series (dated 2009), and one is for the 7000B series alone (dated 2010). Both of these manuals list the mem8M option in the section describing options and licenses, but they both also say that it's standard on the 7000 series. The thing is, when I flicked up the options list on the screen this morning, I don't particularly recall seeing it listed. At the time, I wouldn't have even noticed that it wasn't there, nor even thought about it because I believed that it was standard. The ordering info for all the model variants in the data sheets show the 8M as standard. I'll have another look at the installed licenses tomorrow morning.
Again, thanks.