Designed for long-range fights, up to 4W mitting power,and provide multi-level adjustment. Eficient PA and power calibration to power consistency across all channels. Customized digital PLL circuit, chip level integration, no frequency drift. Aluminum alloy three-layer shell structure and large centrifugal fan provide sufficient heat dissipation to stable output of mitting power. Antenna must be connected before use! Otherwise there is a risk of damage to the product. The product needs to be mounted reliably, avoiding vibration and high temperatures. The product has a built-in power filler, but sill need to avoid excessive power supply interference. Frequency band:3170-3470MHz Freque predsion:±200KHz(Typ.) Channel customer:16 S(For±3MHz) 55dBc Modulation type:FM Antenna Port:SMA 50 Ohms Frequency control:PLL Video input level:1V±0.2Vp-p(typ.) Frequency stability:±100KHz(Typ.) Operating Temperature:-10-+70℃ Power Supply:DC7-30V Control Protocol:IRC Tramp Settings:Controlled using a single button,the button integrates RGB lighting.blue for band,red for channel,and green for power level.When there is no operation,the RGB LED blinks cydically,the number of times the RGB blinks represents the current VTX status(when the green LED is always on,the VTX enters PITMODE).Long the button to enter VTX setting,at this time the RGB lights are lit altemately,release the button under the corresponding color light to enter the corresponding function setting.At this time.short the button to adjust the value.For setup via the flight controller,connect the DATA pin and use the IRC protocol. mitter antenna: Polarzation:RHCP Gain:1.85dBi Bandwidth:3170-3470MHz V.S.W.R Less than 1.9 Radiation pattern:Omni-directional Cable:RG402-SMA Note:Due to different production batches,the printed words may be different,