I know the labmasters support true sample clock (ext) ref.
Indeed. If I come around I can check my 64Xi and LT264M tonight.
Update: Checked my LT264M, and as expected even this old scope offers external sample clock input (TTL, ECL and 0V, 50ohms or 1Mohms switchable).
BTW I wound up buying that loaded 64MXi....so i will do some testing on it's external input and see if it is time aligned, to sample accuracy.....would be very cool if it is. Looking forward to playing with the new tool and seeing just what it can do.
Congratulations! It's a very good scope, and certainly a very good deal you got there.
We had talked about processor upgrades in the other thread. Do you think the same processors will apply to the MXi?
The difference between Xi and MXi is the presence of the L-Bus (LeCroy Bus) interface on the latter, the rest is the same. So yes, the MXi will take Socket479 Celeron-M and Pentium-M processors, and a single full size DIMM of DDR1 SDRAM.
I found that the 1.3GHz Celeron that comes with these units wasn't the best choice by LeCroy, mostly because of its tiny cache (512k). As on X-Stream scopes everything happens within the CPU cache, the performance benefits a lot from larger cache. My 64Xi got a 1.8GHz Pentium-M with 2MB Cache and a 1GB RAM upgrade, and the difference was clearly noticable (the scope also does feel a lot snappier now).
The (M)Xi also has an integrated hard drive (a slow Toshiba 4200rpm 2.5" EIDE drive). I had replaced that with a new 5400rpm Seagate drive and a SATA bridge. I did try several SSDs (EIDE and SATA) but all of them showed some data corruption, probably because of the specific setup (44pin cable which does not support UDMA66 or faster modes), so I opted for a new 2.5" SATA drive which works fine.
BTW: the first thing you should do when you get your scope is to save the hidden \calibration folder on the D: drive. It contains the factory calibration and is crucial. Make sure you have backups, don't loose it!
If this unit works out, I might just replace the other scopes with some new LeCroy units. They are very compelling tools. I had used them in the past, and liked them, but never got very deep into what they can really do. Our conversation in the prior threads, has me really curious if they can live up to their claims....esp. the DEVkit and more advanced feature sets....
They do make great scopes. Just make sure you stay away from their WaveAce (cheap Siglent rebadges) and WaveJet (Iwatsu rebadges with outdated specs) Series. Always go for a WaveSurfer or higher.
BTW: it would be great if you could do a review of your 64MXi, especially of things like PMA1 and the SPECTRUM option (maybe you could show the FFT as well, just as a comparison). I'm sure many people would be interested to see what a modern advanced scope can do.