Just curious, I have a G5RV and a Diamond X-50 antenna. If you was to put a ohm meter on the PL-259 od each antenna, would it read short or open? And is this a way to tell if you have a short on your cable coming from the antenna or not?
If you've a balun you may see a short. If there's a matching section you may see a short. Certainly the matching section of the Diamond CP6 appears as a dead short.
What is a dead short to DC isn't always seen as a dead short to AC which RF is.
The only way to check for a short on coax using an ohm meter is with the antenna and any inline baluns/chokes disconnected.