Coax Attenuation Chart

The resource provides coaxial cable attenuation data, listing signal loss in dB per 100 feet for various cable types across a frequency range from 1 MHz to 5.8 GHz. The initial table details attenuation for cables such as RG-58, RG-8X, and RG-213, with impedance values of 50 ohm or 75 ohm, at frequencies up to 1 GHz. For example, RG-58 exhibits 0.4 dB loss at 1 MHz and 21.5 dB loss at 1 GHz per 100 feet.

A subsequent table expands on this data, including LMR series cables like LMR-400 and LMR-600, along with other types such as 9913F7 and RG214. This section covers frequencies from 30 MHz to 1,500 MHz, also noting the outer diameter of each cable. For instance, LMR-400 (0.405" diameter) shows 0.7 dB loss at 30 MHz and 5.1 dB loss at 1,500 MHz per 100 feet.

The final section focuses on VHF/UHF/Microwave amateur and ISM bands, presenting attenuation in dB per 100 feet (and meters) for frequencies including 144 MHz, 450 MHz, and 2.4 GHz. This table includes larger diameter hardline options like 1/2" LDF and 7/8" LDF, in addition to flexible coaxial cables. For example, 1/2" LDF cable demonstrates 0.85 dB loss at 144 MHz and 6.6 dB loss at 2.4 GHz per 100 feet.

DXZone Focus: Coaxial cable attenuation | LMR-400 | RG-58 | 5.8 GHz