... ,AV3,AV4, and then connect the 12V DC power adapter--Switch on the power button, LED1,LED2,LED3,LED4 are on means ... the 4Ch RF are working. LED5, LED6, LED7, LED8 are ... the strongest signal Package content:1x D58-4 diversity receiver4x 5.8G 2dbi antenna1x power plug4x Avout cable PackagingPackage includes:ReceiverPower in ...