






📡 Stay connected, stay ahead—signal strength that won’t quit!
The KMR400 20FT coaxial cable features ultra-low loss performance (≤0.72dB at 450MHz) with a durable, waterproof PVC jacket and corrosion-resistant copper-nickel PL259 connectors. Engineered with a copper-clad aluminum core and robust shielding, it ensures reliable, high-frequency signal transmission for ham radios, VHF/CB radios, and antenna analyzers, making it the go-to choice for professionals demanding long-lasting, high-quality connections.








G**R
Good value
Save the money this works great. Low swr on all my antenna’s. I have used this coax in different links and it always comes out well. I have used jumpers that are 1 foot long 6 foot long 35 foot long and the 50 foot all at great SWR results and just well-made.
S**H
Great value.
Exceeded my expectations. Low loss, high-quality connectors. Is a little on the stiff side.
T**T
Great products
have order several of these and still using them. with no issues. Great SWR off several different Antennas.
D**Y
solid cable
I got this to run and antenna out the top of my house. It works though the cable is stiff so don't plan on making hard turns with it...
E**A
generic LMR
Grade A - generic LMR from China - a bit stiff but solid connectors and no worries when power was applied -
A**R
Low Signal Loss
Good quality Coax, low signal loss, easy to work with!
Z**.
Affordable and worth it
If you want affordable and awesome quaility buy kmr400. It is almost identical to expensize lmr400
A**M
Excellent low loss, great price
Very low loss and seems to be well made. I have been using it for a few weeks for a dual band UHF/VHF antenna on a tower and also a 80-10m Windom with excellent results.
Trustpilot
1 month ago
2 weeks ago