Attenuation & Power Rating Coax
Chart Nominal Attenuation & Average Input Power in Watts at Frequencies (Mhz) | ||||||
dB LOSS per 100 FEET | ||||||
COAX | 30MHz/PWR | 50MHz/PWR | 150MHz/PWR | 220MHz/PWR | 450MHz/PWR | 900MHz/PWR |
9913FX | 0.8.....2200 | 0.9.....1700 | 1.6.....1000 | 1.8.....830 | 2.8.....550 | 4.2.....380 |
LMR400UF | 0.8.....2100 | 1.0.....1700 | 1.7.....1000 | 2.1.....830 | 3.1.....550 | 4.7.....380 |
LMR400 | 0.7.....2100 | 0.9.....1700 | 1.5.....1000 | 1.8.....830 | 2.5.....550 | 3.9.....380 |
LMR600 | 0.421.....3100 | 0.547.....2400 | 0.964.....1400 | 1.18.....1100 | 1.72.....770 | 2.5.....530 |
LMR600DB | 0.421.....3100 | 0.547.....2400 | 0.964.....1400 | 1.18.....1100 | 1.72.....770 | 2.5.....530 |
LMR600UF | 0.500.....3100 | 0660.....2400 | 1.2.....1400 | 1.4.....1100 | 2.1.....770 | 3.0.....530 |
FSJ150A | 0.980.....2280 | 1.27.....1760 | 2.23.....1000 | 2.60.....860 | 3.93.....567 | 5.66.....395 |
FSJ450B | 0.561.....5750 | .0730.....4420 | 1.29.....2490 | 1.51.....2100 | 2.32.....1380 | 3.40.....947 |
LDF250 | 0.567.....4140 | 0.736.....3190 | 1.30.....1810 | 1.51.....1500 | 2.30.....1002 | 3.34.....704 |
LDF450A | 0.369.....6310 | 0.479....4850 | 0.845....2750 | 0.985.....2300 | 1.51.....1530 | 2.20.....1005 |
LDF550A | 0.197.....14000 | 0.257.....10700 | 0.458.....6004 | 0.536....5150 | 0.834.....3320 | 1.23.....2250 |
18267 RG213/U |
1.2.....1800 | 1.6.....1300 | 2.8....620 | 3.5.....520 | 5.2.....300 | 8.0.....200 |
18214 RG8/U Foam |
0.9.....1350 | 1.2.....975 | 2.3.....475 | 2.9.....390 | 4.7.....225 | 6.7....150 |
19258B RG8x-Mini |
2.0.....875 | 2.5.....500 | 4.7.....310 | 6.0.....255 | 8.6.....150 | 12.8.....100 |
LMR240UF | 1.5.....980 | 1.9.....750 | 3.5.....420 | 4.3.....340 | 6.1....240 | 9.1.....170 |
LMR240 | 1.3.....980 | 1.7.....750 | 3.0.....420 | 3.7....340 | 5.3....240 | 7.6.....170 |
18240 RG58/U |
2.5.....400 | 3.1.....300 | 6.2.....160 | 7.4....115 | 10.6....80 | 16.5.....50 |
18259 RG58A/U |
2.6.....350 | 3.3.....255 | 6.5.....145 | 7.9....100 | 12.2....70 | 20.8.....40 |
18268 RG214/U |
1.2.....1800 | 1.6.....1300 | 2.8.....620 | 3.5....520 | 5.2....300 | 8.0.....200 |
18261 RG11A/U |
3.3.....170 | 2.8.....72 | 8.4.....50 | 15.0....36 | 24.5....25 | 31.0.....18 |
183242 RG142/U |
1.1.....9000 | 2.7.....3500 | 3.9.....2400 | 5.6....1600 | 8.2....1100 | 12.5.....700 |
The above data is for general reference information purposes only. |
The Importance of Replacing your Coax Cable
The life of a coaxial cable depends on many factors. Some of those factors are ultra-violet exposure, migration, high humidity, age, corrosion, power/heat, and voltage. Here are some important guidelines to remember when you start considering the replacement of your coaxial cable run(s).
In summation, coaxial cable can perform to it’s maximum designed efficiency an average of seven years to ten years, provided the connectors are appropriately terminated and the cable is installed correctly. So if your signal is fading or you’re getting erratic VSWR readings, or are unable to get the maximum performance from your transceiver, then its time to consider changing your coaxial cable or cable assemblies.
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9913FX | 401TS | X | 6633S | RFN-1024-1SI | RFB11011SI | X | X | X |
LMR400 | 401TS | X | 6633S | RFN-1024-1SI | RFB11011SI | X | X | X |
LMR400-UF | 401TS | X | 6633S | RFN-1025-1SI | FRB11011SI | X | X | X |
18267 | 401TS | 17-26B-TGN | 6633S | RFN-1024-1SI | 320 | X | X | X |
18214 | 401TS | 17-26B-TGN | 6633S | RFN-1024-1SI | 320 | X | X | X |
19258 | 401TS/403S | X | 6633S/403S | X | 385 | X | X | X |
LMR240 | 401TS/403S | X | 6633S/403S | X | 385 | X | X | X |
LMR240UF | 401TS/403S | X | 6633S/403S | X | 385 | X | X | X |
18240 | 401TS/402S | RFU527 | 6633S/402S | X | 381 | X | RFB1123C1 | 1557 |
18259 | 401TS/402S | RFU527 | 6633S/402S | X | 381 | X | RFB1123C1 | 1557 |
18268 | 401TS | X | 6633S | X | X | X | X | X |
18217 | NE5080 | X | X | X | X | X | X | X |
18216 | X | X | X | X | 336 | X | X | 1559 |
183242 | 401TS/402S | RFU527 | 6633S/402S | X | 381 | RFB1110-1 | RFB1123C1 | 1557 |
18261 | 401TS | 17-26B-TGN | 6633S | RFN-1024-1SI | 320 | X | X | X |
19114 | F" #105 | X | X | X | X | X | X | X |
19114Q | F" #127 | X | X | X | X | X | X | X |
Routing of Cables (with or
without connectors)
Note: The 90° elbow forces the cable downward, thus creating a "drain loop." |
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