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#410206 - 02/12/15 07:37 PM Re: VP-180 opinion needed (HP upgrade) [Re: Brendan]
AAAA Offline

Registered: 03/28/14
Posts: 1593
Nope Brendans. Its a cool idea to try a fluke. Just not sure the sampling rate would represent peaks in the frequency range of music. A scope would be better. Admittedly, I've never messed around with a fluke on anything but 60hz domestic voltages. Instumentation guys mess with the higher end meters more than we would.

#410207 - 02/12/15 07:56 PM Re: VP-180 opinion needed (HP upgrade) [Re: Brendan]
bridgman Offline

Registered: 08/25/04
Posts: 6290
Loc: Bowmanville, Ontario, Canada
Agreed, scope would definitely be better. The Fluke 189 manual claims it can capture transients as short as 250 uS, so I figured it should at least handle lower frequency signals OK.

Of course it says "with degraded accuracy", so not sure if that means +/- 10% or +1000/-99%...

In one of my first jobs out of school I had been working mostly on digital circuitry but got tasked to "go figure out how to fix the noise in that satellite receiver design". Tried to measure the 4 GHz signal coming down from the dish with a scope and a cheap probe, which didn't work anywhere near as well as I expected. Those cheap jumper cables don't work at 4 GHz either. At least I amused the RF guys for a while.

Edited by bridgman (02/12/15 08:40 PM)
M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8

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