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real mode will do you. I've used the NanoVNA on Cat 5 network cables. SMA to BNC: BNC to clipleads (EZ-Hook variety).

Log mag is *always positive* (it's absolute value).. Yeah, you need to be in a linear signed mode

I was just trying to point out that if you have a choice between using a short or open on any device, the short would minimize or eliminate interference that might enter the end of the cable. Joe

Joe.. What I'm trying to do is locate a short or open in a multi-channel audio snake. I really can't afford the high priced spread...

I do fault locating with the Anritsu SiteMaster and the CellMaster. I prefer to use a short when testing because it seals off the end of the cable and avoids/reduces interference. This can help when

Roger...I was in Logmag mode. I'll try Real tomorrow Jim...In Logmag mode the short and open appear identical as far as I can tell

It should work identically - short and opens have 180 degree difference in the phase of the reflection, and that shows up in the synthetic TDR from the frequency sweep.

The Files section of this group contains an "Absolute Beginners Guide to the NanoVNA" Roger

If you turn on Transform and select Low Pass Impulse you are in "TDR mode". You need to set trace to "Real" and then you will see the difference between a short and an open. Roger

Why necropost? Lots of current discussions in this group. Roger

I should have said that type 43 reads like an open circuit .

All the units are based on the same hardware. This from "A Guide to the NanoVNA": The current design of the NanoVNA and the name was created several years ago by a Japanese ham under the pseudonym

Google search: NanoVNA menu images Bob KN6UXD

HOME MENU->CONFIG->VERSION Bob KN6UXD

This is a "where is Waldo" on the menu spider-web question. How do start a rescan after I change parameters? Is there an FAQ that beginners should read? A "NanoVNA for Dummies" book that you can

I realize this is similar to a recent topic but a bit different. As the "TDR" function in the nanovan is not actually a time-domain process, is there a wat to differentiate between a short or open

a useful hint when identifying torrides type 31 has resistance across the surface . type 43 has none. Different materials. -- *Gene Ruff*

43 or 31 material are appropriate for HF applications. 43 is better for 20-meters upward and 31 material is best for 160 through 40 meters. If you are sure you have 43 material, there really is no

Dears, FT240-43 Torroid, Can I use my NanoVNA to meassure my several torroids to be sure that I have the correct ones for HF UNUN? any info is welcome 73, Kurt

That is exactly what I do with my own software, but I then have to ask users not to overwrite and files they have personalise. You can't win! 73, David GM8ARV -- SatSignal Software - Quality software