25W UHF walkie talkie power amplifier send and receive automatic switching

Description

25W UHF walkie talkie power amplifier send and receive high speed automatic switching
Should pay attention to the use of the problem
1 the power cord is not connected, the counter will burn, the red is connected to the positive, and the black to the negative
2 when the transmitter to connect the antenna, the antenna is not prohibited on the launch, which will affect the life of the amplifier device or burn out the device!!
Product function:
This product is integrated inside the automatic switch circuit and power amplifier, increasing the transmit power for receiving the walkie talkie, the machine adopts the antenna and straight way, receiving only loss less than 1dB, the loss can be neglected, no effect on sensitivity. (hand factory sensitivity has been debugging to machine can achieve the best sensitivity, generally without additional amplification, amplification but if you increase the receiver dynamic range compression may also cause poor sensitivity, so no industry receives the amplified amplifier on hand!!!)
Ordinary 2W transmit power of the machine after amplification to reach 19-20W, the average 5W power transmission machine after amplification to reach 25W. Make your hand immediately turned into "taiwan"
Particularly suitable for use with hand club, the car received power amplifier as Taiwan, took off by hand, convenient and flexible, do not have to buy Taiwan high costs, but also take the license audit inspection machine!!! Home is also home to OK! Household power supply on the Taobao very much, dozens of dollars on the line!
Baby features omitted the power switch, only when the input of a few watts of radio frequency signal power to open the power amplifier, in addition to no other way to start the power supply. When the receiver is fully automatic power off, no power consumption when receiving. This allows you to never have to worry about whether the power supply has been manually shut down and other complex issues. The red emission indicator and the power supply light will be bright when transmitting.
Parameter index:
Frequency range: 400MHz-470MHz covers all the frequency points of U
Transmit power: maximum 25 watts, 2W input output 19-20 watts, 5W input output up to the maximum!
Receiving loss: better than 1dB, the value of the sensitivity of the receiver can be ignored.
Power supply: 12-14V, the higher the supply voltage, the greater the transmit power, 25 watts is measured by 13.8V!
Supply current: 3A at the time of transmission, it does not consume any current
For models: U model U and UV double section hand in hand (such as TG-UV2).
Hand power transmitting power for all in the 2 - 10 watt hand
Dimensions: 11.5 cm *8 cm *5 cm (L * w * h)
Usage method:
1 please amplifier on the SMA RF cable with the female head of the machine (gold thread small female) received a hand antenna base (receiving antenna hand screw place)! Which is in small yellow connector to the hand.
2 large thick needle M female antenna amplifier or seedling stick received on your thick needle M female screw joint is on your antenna amplifier! The antenna generally has a feeder, the feeder is thicker, the shorter the better! Too thin too long signal attenuation!
3 connect the red wire to the power source of the power amplifier. If we use a cigarette lighter in the car can be directly connected to the cigarette lighter, if the family is connected to the use of their own power supply. Power supply requirements can stabilize the output current of more than 3A, the output current output voltage can not be reduced too much!!!
delivery quantity: 1 pcs