Review on Upgrade Your Radio Connections With GEMEK 15Ft Low-Loss Coax Extension Cable For CB, Ham, And Short Wave Radios by Shah Jones

LMR-400 is a low loss cable that’s good well into the gigahertz range when used with appropriate connectors. This cable is terminated with PL-259 connectors, so it’s probably best used at 450MHz and below. Even so, the short length means that insertion losses will be a fraction of a dB, even at 900MHz. This would also be a good interconnect for high power HF use, where losses are so small as to be negligible. That’s assuming the cable meets LMR-400 specs. LMR-400 is a trademark of Times Microwave. Other companies making equivalent cable give it other names, like "ABC-400.” I asked if this was actual Times Microwave cable, and got a somewhat equivocal answer, so I suspect it is not. But it feels solid, looks well made, and the ends are nicely sealed, so I have no problem using it in my station