Coaxial Cable Attenuation Charts

A compilation of some of the most common coaxial cable attenuation.

Nominal attenuation of 30.5 meters (100ft)
Cable Type70-85 Mhz148-174 Mhz400-520 Mhz806-960 Mhz2.4-2.45 Ghz5.8-5.85 Ghz
RG178B/U12.4 dB17.0 dB30.4 dB40.8 dB
RG1799.2 dB11.5 dB17.0 dB22.3 dB
RG174/U7.8 dB10.8 dB19.2 dB26.9 dB
RG58C/U4.6 dB7.1 dB13.5 dB18.2 dB
CELLFOAM ™4.1 dB5.6 dB9.8 dB13.2 dB
CELLFOIL ™2.8 dB4.2 dB6.9 dB9.0 dB
RG142B/U3.3 dB4.9 dB8.9 dB12.0 db
RG223/U4.2 dB5.7 dB10.0 dB13.7 dB
RG59B/U3.1 dB4.9 dB9.0 dB13.2 dB
RG62A/U2.3 dB3.4 dB5.9 dB8.0 dB
RG11/U1.8 dB2.5 dB4.8 dB5.6 dB
RG213/U2.0 dB2.6 dB5.0 dB7.4 dB
RG214/U1.9 dB2.6 dB5.0 dB7.4 dB
10D-FB Type0.9 dB1.2 dB2.4 dB3.1 dB
RG8 Type1.2 dB1.7 dB3.1 dB4.5 dB7.0 dB10.6 dB
1/4″ Superflex1.3 dB2.2 dB4.2 dB5.6 dB9.9 dB15.8 dB
3/8″ Superflex1.1 dB1.5 dB2.8 dB3.8 dB6.9 dB10.9 dB
1/2″ Superflex0.8 dB1.3 dB2.4 dB3.4 dB5.9 dB10.2 dB
1/4″ HELIAX ®1.1 dB1.5 dB2.7 dB3.6 dB5.8 dB11.2 dB
3/8″ HELIAX ®0.9 dB1.3 dB2.3 dB3.3 dB5.7 dB9.5 dB
1/2″ HELIAX ®0.6 dB0.8 dB1.6 dB2.2 dB3.7 dB5.9 dB
7/8″ HELIAX ®0.3 dB0.5 dB0.9 dB1.3 dB2.3 dB
7/8″ HELIAX ®0.3 dB0.4 dB0.8 dB1.1 dB2.0 dB
7/8″ HELIAX ®0.3 dB0.4 dB0.9 dB1.2 dB2.1 dB
13″ HELIAX ®0.2 dB0.3 dB0.6 dB0.9 dB1.6 dB
1θ” HELIAX ®0.2 dB0.3 dB0.5 dB0.7 dB1.4 dB




Coaxial Cable Attenuation Ratings
Nominal attenuation dB/100 feet at (Mhz)

RG/U CABLE1.01050100200400900100030005000
6A,2120.260.831.92.74.15.96.59.823.0032.00
8 MINI,8X1.12.53.85.47.98.813.026.0
LMR-2400.240.761.72.43.44.97.57.914.218.7
8,8A,10A,2130.150.551.31.92.74.17.58.016.027.00
9913,9086,90960.91.41.82.64.24.513.00
4XL8IIA,FLEXI 4XL0.91.41.82.64.24.513.00
LMR-4000.91.22.54.14.3
LMR-5000.71.02.03.23.4
LMR-6000.60.81.42.52.7
82140.601.21.72.74.27.814.222.0
90951.01.82.63.86.07.5
9,9A,9B,2140.210.661.52.33.35.07.88.818.027.0
11,11A,12,12A,13,13A,2160.190.661.62.33.34.87.816.526.5
14,14A,2170.120.411.01.42.03.15.512.419.0
17,17A,18,18A,218,2190.60.240.620.951.52.44.49.515.3
55B,2230.31.23.24.87.010.014.316.530.546.0
580.331.23.14.66.910.514.517.537.560.0
58A,58C0.441.43.34.97.412.020.024.054.083.0
59,59B0.331.12.43.44.97.011.012.026.542.0
62,62A,71A,71B0.250.851.92.73.85.38.38.718.530.0
62B0.310.902.02.94.26.211.024.038.0
141,141A,400,142,142A0.300.902.13.34.76.913.026.040.0
1742.33.96.68.912.017.528.230.064.099.0
178B,196A2.65.610.514.019.028.046.085.0100
188A,3163.16.09.611.414.216.731.060.082.0
179B3.05.38.510.012.516.024.044.064.0
393,2350.61.42.13.14.57.514.021.0
4021.22.73.95.58.013.026.026.0
40522.0
LDF4-50A0.060.210.470.680.981.42.22.34.35.9
LDF5-50A0.030.110.250.360.530.781.21.42.53.5




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