Remote Control Modified 16DBi Circular Polarization Antenna 2.4G & 5.8G Dual-band Frequency For DJI Mavic Spark Phantom 3 & 4 There are 2 colors for each type: White or Black, we’ll send the color randomly. 2.4G 5.8G DIY High Gain 16DBI Refitting Antenna for DJI MAVIC PRO SPARK PHANTOM 3/4/4PRO INSPIRE 1/2 Transmitter 16DBI modified antenna set Gain (DBI): 16DBI Standing wave (VSWR): <1.3 Return Loss (S11): 2.4-2.7G (-25) 5.8G (-20) Voltage ratio: 6.31 Power ratio: 39.81 Antenna size: 168mm X 58mm Antenna weight: 84.2g (including packaging tool 118g) The use of gold-plated process of circular polarization antenna efficiency of 98% Antenna with circular polarization design, this design program is generally used in satellite and radar militarization products, far beyond the flexible circuit board (PCB) flat antenna, with a powerful signal through walls or anti-interference ability, antenna radiation angle of 180 degrees, No longer need the antenna to aim at the aircraft to enhance the signal, while supporting 2.4G and 5.8G dual frequency signals p4 PRO & INSPIRE 2 & SPARK etc. Transmitters are supported dual frequency, you can change the frequency through the environment. Note that package not include DJI transmitter!