Screw on ‘Hirschmann’ type aerial with connector on antenna body Intended for use on negative earth 12v vehicles 19mm diameter hole mounting (max 22mm) Mounting hardware includes; perforated support bracket, 2x M5 nuts/bolts and washers, 2x self-tapping screws and a plastic drain tube Dimensions below wing: W = 90mm, D = 45mm, H = 320m Dimensions above wing: Base diameter = 35mm, Height from wing top to aerial top = 30mm when retracted & 850 mm when extended Stainless steel mast Supplied with 6 different mounting head Though this is for negative earth vehicles, we are able to add an additional relay to the unit for £12.95, which will enable its use in positive earth installations (i.e. with original positive earth radio). However, if you are already using a negative earth radio (via positive earth converter) this will work without need for the relay.
