433MHz 8W High Frequency Power Amplifier Digital Flight Control Extended Range RF 

 

 

This power amplifier can output A maximum of 39.2dBm (8.31W) @433MHz at 8V, current 1.56A, efficiency 66.5%, very suitable for two lithium battery power supply, can burst out such a large power. The development team has made in-depth matching optimization of this power tube, as far as possible to achieve the original manual data. Comparison testing is welcome.

Operating frequency: 400-460MHz
Input power: 20~23dBm (0.1~0.2W), less than 0.1W can also work, the output power will increase with the input power, and finally reach the maximum power point.

Operating voltage: 5-8.4V (typical lithium battery supply voltage)

Working current: 1.6A (Max)

Input impedance: 50 ohms

Output impedance: 50 ohms

Input and output terminals: SMA-k female head (internal hole with external thread)

Module size: 4x5.5cm (excluding protrusions)

Module weight: 58g
Maximum output power (P1dB) :

     8.32W (39.2dBm)@8V 1.56A  效率66.6%

     6.76W (38.3dBm)@7V 1.43A  效率 67.5%

     5.12W (37.1dBm)@6V 1.26A  效率 67.7%

       Please note:

1, because it is the UHF band, there are certain requirements for the input and output cables, requiring that the input and output are the coaxial axis of 50 ohm characteristic impedance. If you use ordinary wire connection, it may not work normally, and there are strange phenomena such as small output power and self-excitation.

2, because the output power is large, so do not connect the antenna directly to the power amplifier output above!

Please use no less than 2 meters of 50 ohm coaxial line to connect to the antenna, to prevent the close range of strong signals to interfere with the normal operation of the amplifier!

3, the power amplifier is a one-way power amplifier, can only work in one direction above, can not be used in two-way data transmission or walkie-talkie and other need to receive signal equipment above, if you do not understand the place, please contact the owner to confirm.

8V power supply, output 39.2dBm (8.3W), efficiency 66.6%, see the figure below:

Output power:

 

7V power supply, output 38.3dBm (6.76W), current 1.43A, efficiency 67.5%, see the figure below:

Output power picture:

6V output power 37.1dBm(5.13W), current 1.26A, efficiency 67.8%, see the figure below: