SCVJeff wrote:
Hiking Hunter wrote:
I agree, you're not really testing the RF characteristics of a piece of coax with an ohmmeter.
So if you are just doing continuity checks anyway, go even simpler and eliminate ANY resistor - open one end, check for infinity at the other end, then short the end with a clip lead and check for continuity at the other. It should read less than a few ohms depending on the type and length of the cable.
Thats what I do as well, and honestly don't see the point of terminators. BUT if I were going to apply a load, I would use the 100ohm resistor for no other reason than its a common value.
If there is another reason for not just zeroing out the DVM, then look at a far-end shorted cable to see the losses, I'd really like to know. Maybe we all missed something ?
Nope, there really isn't any reason if you are using a DVM for simple continuity checks. The ony reason you would want to terminate it in a specific load is to properly terminate an RF source so you could measure SWR, frequency response, reactance, etc.
