Ham antenna base mount types for mobile use
From Free Knowledge Base- The DUCK Project: information for everyone
Contents
3/8 x 24" Stud
This type of antenna mount is very common with Citizen Band radio antennas such as the Firestick.
SO-239
This type of antenna mount is very common in amateur radio.
NMO
This type of antenna mount is very common in Part 90 and public safety radio systems.
Type N
It is not common to find the Type N connector being used as an antenna base mount, however, some cases do exit.