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Distance to Fault
On Sun, 14 Nov 2010 18:22:54 -0800 (PST), "Sal M. Onella"
wrote: It may be that a 100 MHz scope has better than a 3.5 nsec risetime, given that it is sped'ed for response flatness to that limit and its response actually extends beyond !00 MHz. The simple correlation between risetime and bandwidth is roughly: BW = 1/(3·t) Unfortunately, peaking bandwidth can degrade risetime, and vice-versa. O'scopes have a lot of conflicting adjustments within them. The TEK545 had something like an 8 to 12 hour tune-up procedure for the average bench tech (a calibration specialist could do it in 3 to 4 hours). 73's Richard Clark, KB7QHC |
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