up to you really
but i'd be very carful about following the old wives tale about
disconnecting your coax during a storm.
this will then charge your coax with static that will discharge through your
equip when you reconnect it.
a shorted connector to a ground line would be much safer, if you wish to
disconnect

mike

"Mike" wrote in message
...
I have a discone antenna on my roof and the mast is grounded to the
earth with #8 solid wire with a ground rod.
I want to use lmr-400 wire for app 50 ft to the scanner. Is it
necessary to install the cable with an in-line arrestor ? I hate to
have to add more connectors if it isnt necessary...I always unplug the
scanner from my cable, rg-58, when Im not using it.....Any
thoughts.....Thanks Mike