Feb. 23, 2011
Hi Gary and KC,
Here is a chart that I put together that shows how LMR-400 works vs. other RG type cables.
================== FOR 50 FEET OF CABLE =======================
RG-58 with 50 feet of cable at 146 mhz ( $0.24 per foot )
50 watts --> into cable --> 25.78 watts to antenna
150 watts --> into cable --> 77.37 watts to antenna
RG-8 with 50 feet of cable at 146 mhz ( $0.60 per foot )
50 watts --> into cable --> 29.1 watts to antenna
150 watts --> into cable --> 87.3 watts to antenna
RG-213 with 50 feet of cable at 146 mhz ($0.89 per foot)
50 watts --> into cable --> 36.2 watts to antenna
150 watts --> into cable --> 108.66 watts to antenna
LMR-400 with 50 feet of cable at 146 mhz ($0.40 per foot )
50 watts --> into cable --> 42.06 watts to antenna
150 watts --> into cable --> 126.209 watts to antenna
================= Cable Data ===================================
Cable Loss per 100 feet at 146 mhz
-----------------------------------------------------------------
RG-58 5.75 DB per 100 feet
RG-8x 4.7 DB per 100 feet
RG-8 4.7 DB per 100 feet
RG-213 2.8 DB per 100 feet
LMR-400 1.5 DB per 100 feet
=============================================================
73's
Bill
K4HVH