How to check coax cable?

There are a couple ways you can do this but my personal favorite is the cheapest and easiest. You can short out the ground to the signal pin inside the cable. You will then set a standard multimeter to its continuity setting (the setting that makes the meter beep when the probes are touched together) then touch one probe to the ground and the other to the signal pin, you should hear a beep, if this does not happen, you have a break in the line. If you receive a beep but you still have problems then you can set the meter to 100Ohm or if you have a nice digital meter with auto ranging then you shouldn't worry to much about setting the range. If you recieve a value that exceeds 100Ohms then you have a damaged cable with continuity. If you receive a beep with the short at the end removed then you know you have a short in the line at some point.