Gm1234 wrote:
"tlindly" wrote
RG8 [not 6] is MUCH bigger in diameter than RG58. RG58 is also much
mor flexable.
But I wouldn't recommend it for this length, unless a very sharp bend
is absolutely necessary.
tom



Besides that, if you ran RG8 on an 18ft Capri, it would likely turn turtle!

Always minimise weight aloft on a sailing vessel!

GM


There is a good calculator for coax losses at
http://www.ocarc.ca/coax.htm
A 25W VHF at 156 mhz with 40 ft of RG-58 will have 15.819W at the
antenna. With RG-8X it will be 16.741W. With RG-8U it will be 19.859W.
Assuming a VSWR of 1.3
krj