Frequency	50 ohm; 0.405 in OD; solid PE dielectric, Loss ~2 dB/100 ft @100 MHz; ~8 @1000 MHz
Bands	all (HF-UHF, best HF/VHF)
Power	MIL-spec RG-8 type; stranded center, solid PE dielectric, 95% braid, NCV PVC jacket. High HF power handling; 5000 V rating.
Modes	n/a

Connectors

terminations	UHF (PL-259), N
power req	None (passive feedline).

Classic MIL-C-17 RG-8-type 50 ohm cable Stranded bare-copper center; solid PE dielectric Single 95% bare-copper braid; non-contaminating PVC jacket High HF power handling; 5000 V rating More flexible and moisture-tolerant than air-dielectric RG-8 1-450 MHz workhorse for ground and amateur stations

Strengths

Rugged MIL-spec build; solid dielectric resists moisture; high power; universally available with easy PL-259 install.

Weaknesses

Higher loss than LMR-400/9913; heavy and fairly stiff; loss climbs at UHF.

Verdict

The dependable general-purpose RG-8 feedline - solid, cheap and easy to terminate, ideal for HF/VHF where LMR-400's extra cost isn't warranted.

RG-213/U is the classic MIL-C-17 RG-8-type 50-ohm cable: a stranded center, solid PE dielectric, 95% braid and a non-contaminating PVC jacket, with high HF power handling and a 5000 V rating. It is the dependable HF/VHF workhorse and takes a standard PL-259 directly.

Compare the lower-loss Belden 9913 or LMR-400, and the lighter RG-8X.

RG-213/U (MIL-Type RG-8 Coax)