Shakespeare ART-3 Antenna Radio Tester Lights making the i3 ideal for

making the i3 ideal for vessels traveling at higher speeds or further into offshore waters

Telescoping feature allows the pole to be raised for maximum visibility

Steel Construction

even in the most challenging plumbing installations

375" (85 mm) Mounting hole

Shakespeare ART-3 Antenna Radio Tester Lights making the i3 ideal forAntenna Radio Test Part #: ART 3 No need to call for a radio check when you have this compact, easy to use, unit on board. Unlike other meters in its class, the ART 3 tests receiver function as well as output power and VSWR (antenna efficiency). It is powered by an internal battery or can be connected to ships 12 VDC with the supplied power cable. Battery level can be checked at the flip of a switch. No serious boater should be without an ART 3.