Thursday, August 27, 2020
Mobile Radio Power: One Fuse or Two?
Bob K0NR makes his case at: https://www.k0nr.com/wordpress/2020/03/one-fuse-or-two/
TLDR Version: If you blow the fuse on the negative/ground side, there still remains a current path through the coax ground shield braid and that would be a Bad Thing. His solution is to only have a fuse on the positive/hot side and to install a substantial chassis ground on the radio.
I tend to agree. Lots of nice diagrams at the article, lots of well-explained points to consider.
Of course all this is moot for a fully-floating ground plane antenna, but how often do we see those in mobile installs?
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