GA490 100KHz-179MHzShort Wave Receiving Antenna with Rainproof Shell for SDR Radio Active Loop Antenn

Description Complete Protection Circuit GA490 Active Loop Broadband Receiving Antenna has a complete protection circuit for anti reverse battery over discharge over charge over current and antenna terminal short circuitWith numerically precision processed shells PCB high frequency design feeder high density dense copper pure copper 50 1 5 feeder materials used Create an high cost effective antenna for the entire network Built in 3 7V 18650 flat head lithium battery No external power supply required The USB charging port is compatible with 5V charging plug and charging cables of Android phonesHigh performance outdoor active loop antenna radio SDR reception Outdoor Antenna Box SMA connector Power Box TYPE C interfaceSpecification Material Plastic MetalMain coverage 100kHz 179MHzWorking voltage 9 12vCharging interface type CBuilt in 18650 lithium batteryPackage size 28 5 x 28 x 7cm 11 22 x 11 02 x 2 76inchPacking weight 850gPackage included 1 x Loop Stainless Steel Wire1 x Preamplifier1 x Active Antenna Power Supply Built in Battery 1 x Double SMA Male 10m Cable1 x Double SMA Male 1m Cable1 x SMA Male to 3 5 Plug 1m Cable1 x USB Type C Charging Cable2 x Stainless Steel Clamp2 x Connection Tube