A compilation of some of the most common coaxial cable attenuation. Nominal attenuation of 30.5 meters (100ft)
| Cable Type | 70-85 Mhz | 148-174 Mhz | 400-520 Mhz | 806-960 Mhz | 2.4-2.45 Ghz | 5.8-5.85 Ghz |
|---|---|---|---|---|---|---|
| RG178B/U | 12.4 dB | 17.0 dB | 30.4 dB | 40.8 dB | – | – |
| RG179 | 9.2 dB | 11.5 dB | 17.0 dB | 22.3 dB | – | – |
| RG174/U | 7.8 dB | 10.8 dB | 19.2 dB | 26.9 dB | – | – |
| RG58C/U | 4.6 dB | 7.1 dB | 13.5 dB | 18.2 dB | – | – |
| CELLFOAM ™ | 4.1 dB | 5.6 dB | 9.8 dB | 13.2 dB | – | – |
| CELLFOIL ™ | 2.8 dB | 4.2 dB | 6.9 dB | 9.0 dB | – | – |
| RG142B/U | 3.3 dB | 4.9 dB | 8.9 dB | 12.0 db | – | – |
| RG223/U | 4.2 dB | 5.7 dB | 10.0 dB | 13.7 dB | – | – |
| RG59B/U | 3.1 dB | 4.9 dB | 9.0 dB | 13.2 dB | – | – |
| RG62A/U | 2.3 dB | 3.4 dB | 5.9 dB | 8.0 dB | – | – |
| RG11/U | 1.8 dB | 2.5 dB | 4.8 dB | 5.6 dB | – | – |
| RG213/U | 2.0 dB | 2.6 dB | 5.0 dB | 7.4 dB | – | – |
| RG214/U | 1.9 dB | 2.6 dB | 5.0 dB | 7.4 dB | – | – |
| 10D-FB Type | 0.9 dB | 1.2 dB | 2.4 dB | 3.1 dB | – | – |
| RG8 Type | 1.2 dB | 1.7 dB | 3.1 dB | 4.5 dB | 7.0 dB | 10.6 dB |
| 1/4″ Superflex | 1.3 dB | 2.2 dB | 4.2 dB | 5.6 dB | 9.9 dB | 15.8 dB |
| 3/8″ Superflex | 1.1 dB | 1.5 dB | 2.8 dB | 3.8 dB | 6.9 dB | 10.9 dB |
| 1/2″ Superflex | 0.8 dB | 1.3 dB | 2.4 dB | 3.4 dB | 5.9 dB | 10.2 dB |
| 1/4″ HELIAX ® | 1.1 dB | 1.5 dB | 2.7 dB | 3.6 dB | 5.8 dB | 11.2 dB |
| 3/8″ HELIAX ® | 0.9 dB | 1.3 dB | 2.3 dB | 3.3 dB | 5.7 dB | 9.5 dB |
| 1/2″ HELIAX ® | 0.6 dB | 0.8 dB | 1.6 dB | 2.2 dB | 3.7 dB | 5.9 dB |
| 7/8″ HELIAX ® | 0.3 dB | 0.5 dB | 0.9 dB | 1.3 dB | 2.3 dB | – |
| 7/8″ HELIAX ® | 0.3 dB | 0.4 dB | 0.8 dB | 1.1 dB | 2.0 dB | – |
| 7/8″ HELIAX ® | 0.3 dB | 0.4 dB | 0.9 dB | 1.2 dB | 2.1 dB | – |
| 13″ HELIAX ® | 0.2 dB | 0.3 dB | 0.6 dB | 0.9 dB | 1.6 dB | – |
| 1θ” HELIAX ® | 0.2 dB | 0.3 dB | 0.5 dB | 0.7 dB | 1.4 dB | – |
Coaxial Cable Attenuation Ratings
Nominal attenuation dB/100 feet at (Mhz)
| RG/U CABLE | 1.0 | 10 | 50 | 100 | 200 | 400 | 900 | 1000 | 3000 | 5000 |
|---|---|---|---|---|---|---|---|---|---|---|
| 6A,212 | 0.26 | 0.83 | 1.9 | 2.7 | 4.1 | 5.9 | 6.5 | 9.8 | 23.00 | 32.00 |
| 8 MINI,8X | – | 1.1 | 2.5 | 3.8 | 5.4 | 7.9 | 8.8 | 13.0 | 26.0 | – |
| LMR-240 | 0.24 | 0.76 | 1.7 | 2.4 | 3.4 | 4.9 | 7.5 | 7.9 | 14.2 | 18.7 |
| 8,8A,10A,213 | 0.15 | 0.55 | 1.3 | 1.9 | 2.7 | 4.1 | 7.5 | 8.0 | 16.0 | 27.00 |
| 9913,9086,9096 | – | – | 0.9 | 1.4 | 1.8 | 2.6 | 4.2 | 4.5 | – | 13.00 |
| 4XL8IIA,FLEXI 4XL | – | – | 0.9 | 1.4 | 1.8 | 2.6 | 4.2 | 4.5 | – | 13.00 |
| LMR-400 | – | – | 0.9 | 1.2 | – | 2.5 | 4.1 | 4.3 | – | – |
| LMR-500 | – | – | 0.7 | 1.0 | – | 2.0 | 3.2 | 3.4 | – | – |
| LMR-600 | – | – | 0.6 | 0.8 | – | 1.4 | 2.5 | 2.7 | – | – |
| 8214 | – | 0.60 | 1.2 | 1.7 | 2.7 | 4.2 | – | 7.8 | 14.2 | 22.0 |
| 9095 | – | – | 1.0 | 1.8 | 2.6 | 3.8 | 6.0 | 7.5 | – | – |
| 9,9A,9B,214 | 0.21 | 0.66 | 1.5 | 2.3 | 3.3 | 5.0 | 7.8 | 8.8 | 18.0 | 27.0 |
| 11,11A,12,12A,13,13A,216 | 0.19 | 0.66 | 1.6 | 2.3 | 3.3 | 4.8 | – | 7.8 | 16.5 | 26.5 |
| 14,14A,217 | 0.12 | 0.41 | 1.0 | 1.4 | 2.0 | 3.1 | – | 5.5 | 12.4 | 19.0 |
| 17,17A,18,18A,218,219 | 0.6 | 0.24 | 0.62 | 0.95 | 1.5 | 2.4 | – | 4.4 | 9.5 | 15.3 |
| 55B,223 | 0.3 | 1.2 | 3.2 | 4.8 | 7.0 | 10.0 | 14.3 | 16.5 | 30.5 | 46.0 |
| 58 | 0.33 | 1.2 | 3.1 | 4.6 | 6.9 | 10.5 | 14.5 | 17.5 | 37.5 | 60.0 |
| 58A,58C | 0.44 | 1.4 | 3.3 | 4.9 | 7.4 | 12.0 | 20.0 | 24.0 | 54.0 | 83.0 |
| 59,59B | 0.33 | 1.1 | 2.4 | 3.4 | 4.9 | 7.0 | 11.0 | 12.0 | 26.5 | 42.0 |
| 62,62A,71A,71B | 0.25 | 0.85 | 1.9 | 2.7 | 3.8 | 5.3 | 8.3 | 8.7 | 18.5 | 30.0 |
| 62B | 0.31 | 0.90 | 2.0 | 2.9 | 4.2 | 6.2 | – | 11.0 | 24.0 | 38.0 |
| 141,141A,400,142,142A | 0.30 | 0.90 | 2.1 | 3.3 | 4.7 | 6.9 | – | 13.0 | 26.0 | 40.0 |
| 174 | 2.3 | 3.9 | 6.6 | 8.9 | 12.0 | 17.5 | 28.2 | 30.0 | 64.0 | 99.0 |
| 178B,196A | 2.6 | 5.6 | 10.5 | 14.0 | 19.0 | 28.0 | – | 46.0 | 85.0 | 100 |
| 188A,316 | 3.1 | 6.0 | 9.6 | 11.4 | 14.2 | 16.7 | – | 31.0 | 60.0 | 82.0 |
| 179B | 3.0 | 5.3 | 8.5 | 10.0 | 12.5 | 16.0 | – | 24.0 | 44.0 | 64.0 |
| 393,235 | – | 0.6 | 1.4 | 2.1 | 3.1 | 4.5 | – | 7.5 | 14.0 | 21.0 |
| 402 | – | 1.2 | 2.7 | 3.9 | 5.5 | 8.0 | – | 13.0 | 26.0 | 26.0 |
| 405 | – | – | – | – | – | – | – | 22.0 | – | – |
| LDF4-50A | 0.06 | 0.21 | 0.47 | 0.68 | 0.98 | 1.4 | 2.2 | 2.3 | 4.3 | 5.9 |
| LDF5-50A | 0.03 | 0.11 | 0.25 | 0.36 | 0.53 | 0.78 | 1.2 | 1.4 | 2.5 | 3.5 |