LMR240 vs RG58 Coaxial Cable Comparison

Feature	LMR240	RG58
Impedance	50 Ohm	50 Ohm
Outer Diameter	~6.1 mm	~4.95 mm
Loss per 100ft @ 100 MHz	~4.2 dB	~7.9 dB
Shielding	Foil + 90% Braid	~70% Braid Only
Flexibility	Semi-flexible	More flexible
UV Resistance	Good	Varies
Typical Use	Wi-Fi, Cellular, GPS, Low-loss runs	Short HF/VHF, General radio
Max Frequency	Up to 6 GHz (practical)	Up to ~1 GHz (practical)
Cost	Slightly higher	Cheaper

When to Choose LMR240

LMR240 is ideal for longer runs, higher frequencies, and outdoor installations where low loss and good shielding matter.

When to Choose RG58

RG58 works well for short cable runs at lower frequencies where flexibility and lower cost are more important than ultra-low loss.