RAM Mount Drill-Down Dashboard Mount w/Backing Plate - C Size Short [RAM-101-B-225B2U] Outdoor | GPS - Handheld This 1" diameter expension mast

This 1" diameter expension mast can be used to increase height of an antenna and thus improve effective range

Single Section antennas with VSWR of <1

BALL/SOCKET SIZE: B Size (1")

Variable range markers (VRM) and electronic bearing lines (EBL) allow rapid measurements of distance and bearing to vessels and land

Includes diaphram and drive assembly

RAM Mount Drill-Down Dashboard Mount w/Backing Plate - C Size Short [RAM-101-B-225B2U] Outdoor | GPS - Handheld This 1" diameter expension mastDrill Down Dashboard Mount with Backing Plate C Size Short Meet the new go to mount and component option for pairing any holder or dock with a dashboard drill down mount. This mount consists of a C size short length double socket arm, two round 2. 5" diameter round bases with the universal AMPS hole pattern, and one 2. 10 x 2. 60 in. steel backing plate (hardware included). RAM's patented rubber ball and socket technology dampens shock and vibration