It is also easy to set up vehicle mounted shortwave antennas in the wild There are four holes at the bottom of the antenna for inserting grounding wires (not included), which can be plugged into banana plugs The antenna installation interface and cable installation interface are both M-female, used to connect M-male port devices The antenna is fixed and installed using ground studs Type: vehicle shortwave antenna base Frequency: 160m - 6m Power: 100W Interface: M female Ground studs interface: M10 Grounding grid: (The product appearance and printed words depending on the batch, but this does not affect use) Colour:As Shown Material:Metal Package Contents: 1 x GP antenna base 1 x ground spike 4 x banana plugs Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.