DC Voltage Distribution Requirements in VDL-1 System with AAA-1C Amplifiers

Important for VDL-1 users. We found out that VDL-1 might have a problem when model AAA-1C active antenna amplifiers are used with it. These models are using optocouplers in the relay control lines in order improve the
isolation from strong RF signals induced from high power amplifires (above 1 KW). The supply voltage of each AAA-1C in the array must not exceed 14.4 V. The file is in http://active-antenna.eu/tech-docs/dc-voltage-aaa1-c.pdf . This paper will be helpful also to set proper DC supply voltages along the VDL-1 array when very long feeder cables are used.