Attenuation for Coaxial and UTP Cables

 

Attenuation(dB/100 meters)
Frequency
(MHz)		 Thick
Coax		 Thin
Coax		 Cat. 3
UTP		 Cat. 4
UTP		 Cat. 5
UTP
1 0.62 1.41 2.6 2.2 2.0
10 1.70 4.26 9.7 6.9 6.5
20 - 6.00 - 10.0 9.3
50 3.94 9.54 - - -
100 - 13.70 - - 22.0
Note: UTP figures are based on TIA/EIA requirements for horizontal cable.