In 2009, my good friend and mentor, blearning did 7 houses all running from one vixen machine and using Lynx LEs using some coax and some w/Wireless to get down a few yards and across the street. One thing he had to do was to put the transmitter up high because of interference from vehicles going down the street or stopping to watch. Unfortunately he moved to another house in 2010 and went back to one house.
