I have had a Larsen 2/70 mobile antenna for years, I reworked-replaced the coax with RG-58, the original coax was a cheap smaller diamater stranded center conductor.
After I solder-rework connectors I check for a short betwween center conductor and sheild with digital VOM that checks for continuity with a audio beep.
The NMO mount checks negative for a short,but I check for continuity from the whip to the center conductor of the coil {base mount} nothing, If I check for continuity from the whip to outer threads that
screw on to the base {ground or sheild} I get continuity.
Why would the whip use {ground or sheild}?
Is this what they refer to as a DC ground.
After I solder-rework connectors I check for a short betwween center conductor and sheild with digital VOM that checks for continuity with a audio beep.
The NMO mount checks negative for a short,but I check for continuity from the whip to the center conductor of the coil {base mount} nothing, If I check for continuity from the whip to outer threads that
screw on to the base {ground or sheild} I get continuity.
Why would the whip use {ground or sheild}?
Is this what they refer to as a DC ground.