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?

No comments:

Post a Comment