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Measurement of ghz signals

S

Saul Bernstein

Jan 1, 1970
0
Hello,

I've got a storage oscilloscope here with a bandwith of 6 GHz. Unfortunately
only the default probes with 500 MHz bandwidth are included.

Now I would like to measure signals in the range of 2.5 gigabit per second.
Thus, I am looking for suitable probes with sufficient high bandwidth. But I
think bandwidth is not all there is to consider. There is also the question
whether to use active or passive probes and probably impedance and
capacitance will also play a mayor role.

In addition, the signals I would like to measure on the board are routed
differentially (selfevident at the frequencies!), so that differential probe
would surely be the suitable choice here. But wouldn't it be possible to
measure asymmetrically to ground potential, anyway?

Guys, how do I find the right solution for my task? Unfortunately I'm an
absolute newbie in measurement technique so pardon me for bothering you. I
already hit some books but I couldn't find out, anyhow.

Thanks for support. Saul
 
P

Phil Allison

Jan 1, 1970
0
"Saul Bernstein"
Hello,

I've got a storage oscilloscope here with a bandwith of 6 GHz.


** Yikes !

Unfortunately only the default probes with 500 MHz bandwidth are included.


** You poor, under-privileged sod ...........

Now I would like to measure signals in the range of 2.5 gigabit per
second.

** Whooooaaaaahh...

This Q is a looooooong way outside " basic" electronics.

Try "sci.electronics.designs" instead.

Bound to be a few gurus there with experience with " state of the art"
scope probes.




...... Phil
 
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