Antenna interface: MMCX@50 Ω Transmission power: 25mW for lst level, 1500mW for 2nd level. 3000mW for 3rd level Video input: 1Vp-p@75 Ω Power input: DC 6-26V 5V output: maximum 0.5A Power consumption: approximately 6.6W @ 12V/550mA/3 levels 1. Set the frequency band Long the [Channel/Band] button to set the A band and B band. The red indicator light in band A lights up, and the blue indicator light in band B lights up. 2. Set up channels Short the [Channel/Band] button to set the channel. The number of times the current band indicator light flashes represents the channel, and channels 1-8 can be set in a loop. 3. Display Channel indicator light flashes, The preview status periodically and cyclically, The channel indicator follows the band light, for example, band A. The number of times the red indicator light flashes represents the channel value of band A. 4. Power control Short the [Power] button to set 3 power levels, and the green indicator light corresponds to the number of times. 5. IRC Tramp This product supports IRC tram protocol to set parameters such as frequency and power Color:As Shown Material:Metal Package Contents: 1 * 1.6Ghz 20Km Fpv Vtx Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.