Re: oscilloscope for CNC

Thanks to Jack, Harvey, Jens, Alex, Vic, John, Vince, Charles, Dave,
David, Lee, Stephan, Bernard, Jon, Joe, William, Jack, etc.

Summary:

PREFERABLE FEATURES:
dual channel
triggered sweep
onscreen readout
Minimum 50mHz bandwidth

>=100mHz.

2x frequency to be measured
Digital
period measurements
counting
frequency readout
voltage measurements
maths function
printing
input isolated and grounded
wide voltage range
storage
accurate timebase
scroll mode
color


BRAND:
Tektronicx - good
HP - good, odd logic
Kenwood - good
Telequipment - avoid
Fluke - portable, rugged

MODEL:
Tek 545 (vacuum, lots of capability)
Tektronix 2000+ portable
Tektronix 7000+ mainframe, plugins,
Tektronix 5000+ less money
Tektronix 500+ stay clear, vacuum tube, space heater
Velleman: single channel, handheld, 10mHz, digital,
Fluke 92B Scopemeter - big bucks, manual with examples

POOR MAN'S:
http://www.stud.fh-hannover.de/~heineman/freeware.htm
http://racket.bitscope.net/

RECCOMENDATION:
buy used (if you happened to be in USA/Canada :-(

Is there a 1 size fit them all?