how to wire in current probe to coaxial cable

[coppercone2]

I have a AC signal in a coaxial cable within the bandwidth of my probe (up to 50MHz).

What is the best possible way to wire in a probe to measure current?

The best I came up with is to get a open pomona box (metal box with 2x bnc connectors) and clip the probe in there. It seems like its the least intrusive way.

[jonpaul]

If a BNC cable:

Bare BNCs><wires><BNC

Pomona BNC ><EZhook adapters

Otherwise just cut the cable shield, and breakout a loop.
 

j

[coppercone2]

I thought the box might be more 'coaxial' then splitting the cables, because its a big chunk of aluminum.

Another way might be to get a over sized braid with a slot in it that you put the probe into (like 1 inch braid), like a bulbous shape (puffer fish)


I basically made the same thing as this
https://i.sstatic.net/8I1fC.jpg

found on
https://electronics.stackexchange.com/questions/505674/measuring-current-in-coax-cable-using-clamp-on-current-probe


a split one can measure return current however. Maybe you would use a braid rather then a wire for the shield wire

[jonpaul]

answer depends on the freq range of sig in the coax and of current being measured

j

[coppercone2]

the widest range is the best because the probe can do 50MHz but the cable 4GHz. Ideally you want a solution that goes into the GHz for people that have the expensive probes (not me)