Specifications: Input voltage:7-30V Working frequency:1.2G-1.3G Available channels:9-CH Maximum output power:1600mw WMaximum size:37mm*31mm*11mm Mounting hole:20mm*20mm by M2 screw Weight:18.8g Number of channels: 8CH Frequency: 1120/1160/1200/1240/1258/1280/1320/1360(MHz) Output power: PIT/25MW /200MW /1600MW S/N(Fo卤3MHz): >70dBc Antenna Port: 50 Ohms Input format: NTSC or PAL Operating Temperature: -10鈩儈 +60鈩?br> Function Description: 1.Power value could controlled by IRC TRAM Protocol 'PIT/25 /200 /1600MW' 2. Press and hold the Band/Channel switch button for 1 second to switch CH 1-8 cycle. 3. Press and hold the Power level switch button for 1 second to switch the power to PIT/25mw/200mw/1600mw cycle. 4. Once the VTX data wire was connected to betaflight flight controller TX and IRC TRAMP was correctly set, then the Bands/channels/power value can only be controlled by be taflight configurator or OSD menu. Known issue: LED indicate on the VTX will not change while switch bands/channel or power value by IRC TRAMP, however the value of bands/channels/power value will really be changed.When using this product, please comply with local regulati ons and install the antenna before use. Package included: 1x FTWHOBBY 1.2G 1.6W Video Transmitter Module 1x Video Transmitter Module Cable 1x MMCX-SMA Female Adapter Cable 1脳 1.2G Y-shaped Antenna