Marine & Marine Band Antennas

For Fibreglass and Wood Boats

Antennas don't work unless they are mounted on a metal structure such as a car,

this metal Surface is called a ground plane If there is no ground plane then one has to be simulated!

such is the case of ground independent antennas.

If you mount an antenna on a fibreglass or wood boat you will need a ground independent antenna

these antennas do not supply their own ground plane "they simulate them"

this is important to note as a ground independent antenna never works better than an antenna mounted on its own ground plane

such as a metal car or boat.

Ground independent antennas have a higher angle of radiation Ground independent antennas are very narrow banded.

Ground independent antennas are DC grounded ( reads a dead short at the connector)

You should avoid cutting the coax shorter than 3.1mtrs, If you have excessive coax try to run it in a wide loop - do not tightly coil it.

Inside the white base is a coil and capacitor that are tuned to the antenna top- Also the antenna top is tuned to the base

if you damage the antenna top the replacement antenna will not necessarily be perfectly tuned to the existing base , so

is important if you can , test with a SWR meter if you replace the antenna.

Mobile One tunes every single marine antenna before it leaves the factory.

Aluminium or metal Boats

But a non ground independent antenna using the boat as a ground plane will work much better

Most 27MHz CB antennas can be tuned to 27.880MHz on a boat,

The longer the antenna the better the performance - Call Peter on 0246556677 for more info.