Does anybody here have or no if the 2.4g Mini Signal Expansion Device for the DJI Phantom FC40 and no if the device works well, has much of an improvement, if it is reliable and also if it would clash with my wifi extender for the wifi camera which can be purchased from http://www.banggood.com/2_4g-Mini-Signa ... 23448.html / Ebay and also on amazon