Using the TRUERC AXII 5.8Ghz Side Feed Antenna is quite straightforward. First, connect the antenna to your device using the U.fl/MMCX connector. You can use it for your wings or other FPV equipment. When using it, make sure it's in a position where it can receive and transmit signals without much interference. As for maintenance, keep it clean and dry. Avoid bending the flexible RG178 cable too harshly as it may affect the signal. If you're not using the antenna for a long time, store it in a cool and dry place. Also, since it's a high - performance device, handle it with care to maintain its excellent performance.