- May 21, 2009
I've seen 500 feet feeds from LNBs through RG11. That cable can be a pain to terminate.Wow. 500 feet is pressing it. A simple voltage drop calculator for 22 VDC through 18g copper wire at 1 amp shows a 29% drop and resulting voltage at the termination of 15.6 VDC. Yeah I can see where there is a switching problem. Time to go commercial with a larger center conductor. FTA LNB's with lower current draw might be ok, but DN and Direc LNB's are current eaters.