I need help on the following : 1) i have a like 6 receivers(relays). Which mean they have 6 Vcc inputs operating at 12 V. Can i just connect them together using jumper wire so that they will power on a single 12 V or how can i combine them into using 1 power supply only? 2)This receiver (relay) have sort of a thin wire antenna... and the range better the transmitter to it is about few 100m. Can/how modified it so that it can transmitter at longer range? maybe using a higher gain antenna?? how? 3)i am also using USBIO24 module. Can anybody tell me how can i test the "Inputs" of this module that i've configured??