02-09-18, 01:59 PM
I have recently purchased a 34' Silverton. I have attached one of the sales pics. It has a radar mast starboard side visible with a Raytheon Dome to a Chartplotter C80.
The PA/Foghorn speaker is currently located on the bridge downslope.
I would like to relocate this to minimize magnetic compass interference. I tested on my old boat, with a box compass, and determined that its specific PA speaker can deflect a needle slightly up to 6' or 7'.
I was eyeing the radar mast. I could sling the PA speaker horizontally under the radome plate and keep it elevated over the head.
Question: Will the magnetic field that deflects the compass needle create interference or distortion in the Radome? Either in reception or signal processing?
I find the speakers are directional to a point, and I don't want to lower it to blast myself if driving on the bridge. High up is bad enough.
I do have a an alternate to go to the bow, as a high power searchlight on a plate is being added to the bow rail, but I find PA's don't like a lifetime of seawater ingestion, water resistant or not.
The PA/Foghorn speaker is currently located on the bridge downslope.
I would like to relocate this to minimize magnetic compass interference. I tested on my old boat, with a box compass, and determined that its specific PA speaker can deflect a needle slightly up to 6' or 7'.
I was eyeing the radar mast. I could sling the PA speaker horizontally under the radome plate and keep it elevated over the head.
Question: Will the magnetic field that deflects the compass needle create interference or distortion in the Radome? Either in reception or signal processing?
I find the speakers are directional to a point, and I don't want to lower it to blast myself if driving on the bridge. High up is bad enough.
I do have a an alternate to go to the bow, as a high power searchlight on a plate is being added to the bow rail, but I find PA's don't like a lifetime of seawater ingestion, water resistant or not.