Specification:
Brand name: Eachine
Item name: VTX03S FPV Transmitter
Output power: 25mW/50mW/100mW/200mW switchable
Input voltage: 3.3-5.5V
5V camera supply, 530mA(MAX)---200mW@4.3V
5V camera supply, 450mA(MAX)---100mW@4.3V
5V camera supply, 360mA(MAX)---50mW@4.3V
5V camera supply, 280mA(MAX)---25mW@4.3V
Video system: NTSC/PAL
Antenna dimensions: 55mm X 5mm diameter
Antenna: IPEX
Size: 21.43*15.20mm(L*W)
Weight: 2.97g
 
Features:
Smartaudio Function
PITmode, no signal interference
Support 0.01mW Parameter-adjusting Mode
25mW/50mW/100mW/200mW power switchable
One button frequency and power setup
OSD configuration using FC Uart(F3/F4/F7 with OSD)
5V to camera@under 300mA
Adopt button instead of toggle, convenient operation
1S lipo power supply
Power Off Memory

Operation:
Channel select
Short-Press the button to change channel(CH),digital display will change synchronously .Digital display changes cyclically  from 1 to 8
Band Select
Press button for 2S ,Blue LED display will flicker ,then short presses to select 5 band A/B/E/F/r sequentially.
Power select
Press button for 4S.Blue LED display “0” will flicker,then short presses to select  power 25mW/50mW/100mW/200mW sequentially.
Notice:(Number “1” stand for 25mw;Number “2” stand for 50mw,Number “3” stand for 100mw,Number “4” stand for 200mw)
Parameter-adjusting Mode(0.01mW)
While in P Mode you can change channels and set power levels, with the button,but none of these changes will take effect until you quit P Mode.By default,P Mode will send a very weak signal.
 Exit Parameter-adjusting Mode
Two ways to exit P Mode:
Press button for 12 seconds to exit P Mode
Turn “Race” to “Free” blew the “ OP Model” sub-category on OSD display and power to reboot
Notice: The VTX has memory for settings. To change the settings,please repeat steps as above.
 
Cable Connections: 
Red(3.3V-5V)
Black(GND)
Green(smartaudio)
Red(5VCAM)
Black(GND)
Yellow(Video In) 
  
 
Package Includes:
1 x Eachine VTX03S Transmitter