Grounding a Antenna on a Fiber Glass Air Boat

[Ecobeast290]

Hello as the title states im trying to Ground a dual band Motorola All Band VHF/UHF Antenna to the haul of a fiber glass boat. We have tried using a no ground plane antenna and that did not work we also tried using a ground plane disc and that didnt work. The only other the thing that i can thing of trying is to build a plate and have it welded on to the cage surrounding the motor and prop. This would leave a hole to be plugged in the top of the boat

 

[vagrant]

There may (also) be a problem with your coax, antenna, radio, or any combination of those items. What was the SWR with the different tests? What was the diameter of the ground plane disc?

Tell us more about your radio, antenna(s), coax type and length, frequency or band being used, antenna placement, power line from battery to radio, etc.

 

[mmckenna]

Hello as the title states im trying to Ground a dual band Motorola All Band VHF/UHF Antenna to the haul of a fiber glass boat. We have tried using a no ground plane antenna and that did not work we also tried using a ground plane disc and that didnt work. The only other the thing that i can thing of trying is to build a plate and have it welded on to the cage surrounding the motor and prop. This would leave a hole to be plugged in the top of the boat

By chance are you working with this guy:

Antenna on a Fiberglass Airboat - Grounding Question

I'm a member of my local fire department, where we have this airboat equipped with a dual band radio. It may be hard to see in this picture, but the antenna is mounted toward the front, right in front of the cab. Transmit quality is not great on it. Since it's a fiberglass boat and that...

forums.radioreference.com

Pretty much the exact same situation and the same troubleshooting steps.