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The stiff solid conductor coax like standard non flex LMR is good for long straight runs or installs where permanent bends thru walls are needed.

Stranded coax is stronger though.

RG213 is a good combination of a semi-stiff strong yet flexible cable. LMR ultra flex is a bit to flimsy for my use except for making jumper cables.

You will probably see a lot of talk about coax spec's comparing RG213 and LMR coax. On short runs less than 100 ft, these are ridiculous debates.

LMR coax was designed for the shorter wavelength VHF/UHF frequencies since the higher the frequency, the higher the loss.

RG213 type coax was designed for the broader longer wavelength that is HF frequencies below 30 MHz.

The DB loss is minimal at 30 MHz between the 2 coax types and the velocity factor at 300 million meters a second isn't worth the effort computing either. Especially to what that means in the real world usage.

<blockquote data-quote="fourstringburn" data-source="post: 552703" data-attributes="member: 2920">The stiff solid conductor coax like standard non flex LMR is good for long straight runs or installs where permanent bends thru walls are needed.Stranded coax is stronger though. RG213 is a good combination of a semi-stiff strong yet flexible cable. LMR ultra flex is a bit to flimsy for my use except for making jumper cables. You will probably see a lot of talk about coax spec&#039;s comparing RG213 and LMR coax. On short runs less than 100 ft, these are ridiculous debates. LMR coax was designed for the shorter wavelength VHF/UHF frequencies since the higher the frequency, the higher the loss. RG213 type coax was designed for the broader longer wavelength that is HF frequencies below 30 MHz. The DB loss is minimal at 30 MHz between the 2 coax types and the velocity factor at 300 million meters a second isn&#039;t worth the effort computing either. Especially to what that means in the real world usage.</blockquote>

[QUOTE="fourstringburn, post: 552703, member: 2920"] The stiff solid conductor coax like standard non flex LMR is good for long straight runs or installs where permanent bends thru walls are needed. Stranded coax is stronger though. RG213 is a good combination of a semi-stiff strong yet flexible cable. LMR ultra flex is a bit to flimsy for my use except for making jumper cables. You will probably see a lot of talk about coax spec's comparing RG213 and LMR coax. On short runs less than 100 ft, these are ridiculous debates. LMR coax was designed for the shorter wavelength VHF/UHF frequencies since the higher the frequency, the higher the loss. RG213 type coax was designed for the broader longer wavelength that is HF frequencies below 30 MHz. The DB loss is minimal at 30 MHz between the 2 coax types and the velocity factor at 300 million meters a second isn't worth the effort computing either. Especially to what that means in the real world usage. [/QUOTE]

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