We have a steel
Amazon 49 built by SP Metalcraft in 1988. There is an Icom
M700Pro and an AT-120 tuner already installed. The lead in wire from the antenna
tuner to the backstay has been cut, is now too short, and needs to be replaced.
While looking for a source of GT-150 wire, I came across a site in Germany
. In their site they make a statement that whenever the lead in wire goes through a metal deck
or bulkhead, you need a minimum 30 mm (about an inch and a quarter) hole with an insulated feedthrough to keep the conductor centered. This is required to prevent "capacitive loss" as the wire goes through the deck
. In my boat, there is a very small hole drilled in the deck, not much larger than the wire. It is sealed with some type of marine sealant
, but the hole is certainly not very large.
Anyone have thoughts on this? On a steel
boat, how did you get your wire from inside the cabin
to the backstay? Appreciate any sharing.
Amazon 49, currently lying La Paz