Coastal Plains Amateur Radio Club


Repeater 147.285 +600 PL 141.3

*NEW* Repeater 444.925 +5 mhz PL 141.3 *NEW*

W4PVW-3 APRS Digipeater 144.390

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Club Call: W4PVW  

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CPARC is an ARRL VEC testing club. Test can be scheduled through the test location
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COAX and HARDLINE ATTENUATION CHARTS

Cable Attenuation (measured in db per 100 feet)
Cable 1
MHz		 10
MHz		 50
MHz		 100
MHz		 200
MHz		 400
MHz		 700
MHz		 900
MHz		 1
GHz
RG-58 0.44 1.4 4.1 4.8 7.5 11.8      
RG-8X 0.2 0.78 2.0 3.0 4.5 6.0 7.9 8.8  
RG-213 0.17 0.55 1.3 1.9 2.5 4.1 7.5 8.0 8.2
RG-6 0.16 0.57 1.4 2.0 2.8 4.3 5.6 6.0 6.1
RG-11 0.14 0.42 1.0 1.5 2.2 3.5 4.1 5.2 6.6
RF9913** 0.15 0.4 0.9 1.4 1.8 2.6 3.6 4.2 4.5
BURY-FLEXTM* 0.26 0.52 1.1 1.5 2.0 2.9 3.8 4.9 5.3
RG-59 0.6 1.1 2.4 3.4 4.9 7.0 9.7 11.1 12.0
RG-214 0.17 0.55 1.3 1.9 2.7 4.1 6.5 7.6 9.0
Notes:
* Bury-Flex attenuation is very close to LMR400 (2.1 dB @ 400 MHz)
** RG-8 (#WM106) {Not listed on table} has somewhat higher attenuations as compared to Bury-Flex (note that Bury-Flex has a 20+ year abrasive resistant jacket of PE, whereas RG-8 is a Non-Contaminating PVC). RG-8 (WM106) has a double shield.
*** RF9913 (#WM102) Flexi-XL is stranded. Attenuation is slightly higher than standard 9914, but still very low loss.

 

Cable Attenuation(measured in db per 100 feet)
Part No. @ 30 MHz @ 450 MHz @ 1 GHz
LMR400(reg) 0.70 dB 2.70 dB 4.00dB
BURY-FLEXTM 0.76 dB 2.98 dB 5.30 dB
LMR400UF 0.80 dB 3.10 dB 4.79 dB
LMR500 0.54 dB 2.17 dB 3.20 dB
LMR600 0.42 dB 1.72 dB 2.54 dB
LMR900 0.27 dB 1.10 dB 1.64 dB
LMR1200 0.21 dB 0.86 dB 0.95 dB
LDF4-50A 0.37 dB 1.51 dB 2.34 dB
LDF5-50A 0.20 dB 0.83 dB 1.31 dB

 

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