I agree with WIK.
Belden 213, Which is a RG-8 (Radio Grade number
of coax is about best for HF use. It has better physical properties than the much lower loss LMR 400.
(Which is also a RG-8 size coax)
However, For VHF/UHF use, The LMR 400 is the best stuff to use (Short of Heliax)
I learned a long time ago to mistrust some of the
"clone" coax that is available. While SOME of it might
work OK, To me it is just not worth the few pennies
difference to RISK it all on the off-brand stuff....
Even the big companies mess up. Belden, Who makes all
sorts of great wire and coax, Screwed up with many
versions of 9913....... One to avoid!