Miniature UHF connector
Mini-UHF connectors are miniaturized versions of
bag-type mobile phones and similar applications where size is an important consideration. Introduced in the 1970s, Mini-UHF has a 3/8-24 thread size and operates up to 2.5 GHz.[1]
It is similar only in basic construction, a threaded outer portion, center pin, and toothed ends intended to prevent twisting and loosening. Its performance is much better than the standard UHF.