I'm searching for more capable scope to buy. I tried the local shops but prices are huge. I borrowed a 100MHZ Fluke 199C to evaluate and buy but to be honest I'm not spending $2000 for such a crap. Speed was acceptable , scope is very easy to use but overpriced.
I was looking at OWON scope 200MHz bandwidth with 16 channel logic analyzer for half price of fluke, but it is chinese and I'm afraid it will be junk.
I don't like to buy a used scope, it is ok to spend the money if I get what it says on the box.
For the FPGA board I can generate clocks with 90, 180, 270 phase shifts so I guess the minimum time step I can generate reasonably is 1.5 nsec. But the clock jitter is about 900 psec. Do you think it is reasonable to generate 1.5 nsec pulses using 300 MHz fpga or shall I try the circuit proposed by the late Jim Williams in the EDN design ideas Nov 11 2004?
Mahmood