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| SDS1104X-E Eye Pattern |
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| Anthocyanina:
--- Quote from: Fungus on June 23, 2022, 08:14:03 am --- --- Quote from: tomas1808 on June 22, 2022, 10:49:19 pm ---I bought a Sigilent SDS1104X-E with the intention of using it for measuring the ethernet signal integrity of a device. Does this scope have the function to do "Eye Pattern" test? The scope is hacked to 200MHz and have passive probes to match it. --- End quote --- What speed Ethernet? You'll need a lot more bandwidth than that to look at anything above 10Mbits. --- End quote --- triggering on clock i get this at 50Mbit on a 200 Mhz bandwidth oscilloscope, it still looks very usable |
| 2N3055:
I see lot of confusion here.. Like Performa01 said you need 1GHz+ (preferably 2GHz) scope with proper high speed active differential probe to actually extract the signal from the Ethernet, including a certified Ethernet T connector jig to not destroy signal integrity of the Ethernet line.. Then people start saying you could do it at 100 or 10 Mbits.. What is the point of doing eye diagram at 10 Mbits if you're interested at 1Gbit eye? The whole idea of eye diagram is to be run at speed of interest. Running it 100X slower will not give you any information... Except how it works when it is slow. And 10 Mbit is so slow it will run over water pipe.... No need for eye diagram.. |
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