One. Features
This series of wireless audio-visual transmission equipment is a product with excellent performance in all aspects. It has a large power margin and low current consumption, and the power consumption is only about 400mA under normal working conditions. Moreover, it is small in size and long in transmission distance, making it more suitable for various complex actual environments. When using 5dB (original small antenna) omni-directional antenna, the open and interference-free environment can transmit about 2000 meters. If you increase the gain of the directional antenna, the distance can be increased to more than 3000 meters, and it can also be blocked in general cities. The transmission is about 300-400 meters.

2. Performance characteristics

1. Wireless transmission mode: no need to erect communication cables
2. Synchronous transmission of images and audio, compatible with color and black and white
3. Miniaturization, light weight, easy to carry, easy to install
4. Respond quickly and timely, send and receive real-time transmission
5. Using frequency modulation method, strong anti-interference ability and good image quality
6. High integration, stable and reliable work, long transmission distance
7. The power supply only needs to supply power to one place, without complicated wiring, plug and play, simple operation and easy to use.

Three,  Basic parameters

Model: SS-1.2G-4W
Power supply voltage: 12V DC
Current: 400mA
Transmitter size: 95*58*19 (mm) with antenna connector, without antenna size
Transmitter net weight: 180g
Transmitting power: 4000mW milliwatts
Receiver size: 132X80X20 (mm) with antenna connector, without antenna size
Receiver net weight: 140g (without antenna)

Four,  Technical parameters

Band: L band（shortwave）
Frequency: 1060-1380 MHZ
Number of channels: 4 (1:1080MHZ   2:1120MHZ   3:1160MHZ   4:1200MHZ) 
Antenna input impedance: 50Ω
Sound subcarrier frequency: dual sound 6.0MHz/6.5MHz
Video input impedance: 75Ω
Audio input impedance: 600Ω
Transmission distance: 3KM（Need to add outdoor high-power high-gain antenna, depending on obstacles and interference, the transmission distance will be different）

Five,  installation method:

1.   The working channel of the receiver should be the same as the working channel of the transmitter.
2.   Connect the TV or monitor to the audio and video output port of the receiver with an audio and video cable.
3.   Install the antenna.
4.   Install the power adapter, the power indicator light will glow. After the transmitter and receiver are installed, observe the output image effect of the receiver, and adjust the antenna angle of the transmitter or receiver until the sound and image are both ideal.
5.   Before turning on the power, please be sure to install the antenna specially equipped for this machine, and try to keep the antenna upright when using it to achieve the ideal transmission effect.
6.   Please be sure to use the power adapter provided by our factory to avoid damage to the machine.
7.   This product uses the L-band frequency, four channels, transmits audio and video signals, and has good anti-interference performance. It is aimed at high-power walkie-talkies and other voice communication equipment that interfere with traditional video transmission equipment, resulting in receiver output This product has completely solved the black screen phenomenon of the image.
8.   The circuit of this product is optimized and upgraded. It adopts a new encryption chip circuit and common conventional receivers circulating in the market. The image content transmitted by this product cannot be received normally, and the supporting receiver can be received normally. Image and sound.

note: This system includes one transmitter and one receiver each, the receiver with the “RECEIVER” mark. Please use the original antenna for transmitting and receiving. Do not equip your own antenna, otherwise the transmitter will not work normally.

A: Transmitter antenna up, channel switching method（White is the dial key）

B: Receiver channel switching method（White is the dial button）

Six, product accessories
1 transmitter host, 1 receiver host,12V 2A power supply 1 (Special attention: please use for transmitter),One 12V 1A power supply, two antennas, two adapter cables, one back clip, and one manual.

Seven, purchase instructions
1. The company''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s products are guaranteed for one year.Express logistics confirm whether it is suitable for use within 2 days after receiving the goods. If it is not suitable for use, please contact customer service immediately and send it back. The goods can be returned or exchanged; otherwise, the goods will not be returned.!Please see clearly before buying. Thank you for your cooperation.
2. The company will replace any quality problems within one week from the date of purchase of the company’s products.
3. Product replacement conditions: The appearance of the product is intact, the product seal is intact, and the accessories are complete.
4. In one of the following situations, repairs are not guaranteed, but repairs can be paid for.
1. Failure to use the power adapter provided by our company, causing high voltage burnout.
2. The product is damaged due to damp or water immersion due to improper use and storage by the customer.
3. The seal is torn or the customer privately dismantles and transforms into product quality problems.
4. Destroyed due to force majeure (lightning, earthquake, fire and other natural disasters).

All components are imported from Taiwan  Quality Assurance 

Special Note:

SS-1.2G-5W: 580.00 (unit price for a set)

SS-1.2G-6W: 818.00 (a set of unit price)

SS-1.3G-7W: 1180.00 (a set of unit price)

SS-1.2G-8W: 1380.00 (unit price for a set)

SS-0.9G-8W: 1380.00 (unit price for a set)

If you need the products of the above models, please consult the customer service representative, thank you!

In addition, the company can also customize transmitters of different frequencies for customers, and the power can be customized from 5 watts to 10 watts.

Please read

（The following are a few questions that customers often ask）:

 1. The following question is one of the most frequently asked but the most difficult to answer:
Question: How far and how far can you transmit in the open and barrier-free, but how far can it be transmitted in places with obstacles? How many floors can it pass? How many walls can I wear? How far can a 2000mW transmitter travel in the city? Why does it indicate that it can transmit 1000 meters but only 200 meters?

Answer: The transmission distance of different environments is completely different, because obstacles have high bottoms, walls are thick and thin, trees are dense, etc. For example, a 2000mW transmitter can transmit 1-1.5 kilometers in an open and barrier-free environment. In an open and barrier-free environment in the urban area, it can pass 500-800 meters, and in an environment with more buildings, it is possible to pass 200 meters or tens of meters, and it may be impossible to penetrate. But if you can choose to add an outdoor antenna in an environment with obstructions, try to put the outdoor antennas at both ends to the highest point, so that the antenna and the antenna can be open and can see each other, then the transmission distance at this time is ours The transmission distance indicated on the data.

 2. How to test the wireless audio-visual transmission system that I just purchased?

Answer: A. First connect the camera (camera) to the power supply, connect the monitor (TV), and confirm that the camera (camera) and monitor (TV) can work normally;
B. Connect the transmitter, camera and power supply, connect the receiver, monitor and power supply, and then adjust the button on the receiver to select the channel. Make sure that the channel on the receiver is exactly the same as the channel on the transmitter; this way you can use the device normally. Equipment.

 3. During the test, why do you say that you can pass several kilometers but you can’t pass several tens of meters during the test?

Answer: During the test, some people can only use a transformer on one side of a room to provide power to the transmitter due to power limitations, and to provide power to the receiver in another room not far away. In this way, It just happens to cause a great obstacle to transmission and reception, because the reinforced concrete structure of the building is a great obstacle to radio waves. When testing, please try to make the transmitter and receiver completely barrier-free. You can extend the connection line between the receiver and the monitor and add the connection line between the antenna and the transmitter, so that the antenna of the transmitter and the receiver If the antennas can see each other, the transmission distance of the device can be tested.

 4. Why are there scrolling black bars on the monitor screen when using the wireless audio-visual transmission system?

Answer: This situation is usually caused by insufficient current provided by the transformer connected to the transmitter or receiver or the use of inferior transformers, just replace the transformer. It should be noted that the 12V/800mA transformers marked on the market are usually only about 300-400mA.

 5. What is the clarity of your wireless audio-visual transmission system or why the transmitted image is blurred?

Answer: This system does not involve the sharpness of the image. The sharpness of the camera is what the sharpness is received. If the received image is blurry, please check the camera first to see if the camera focal length is wrong.

 6. Will there be people around who use the same product to interfere with each other?

Answer: The number of channels of the wireless audio-visual transceiver system we provide is four, which can be selected according to the specific situation. Generally speaking, it will not be possible to stagger the same frequency point. If there are signals of the same frequency point around, they will interfere with each other.

 7. When using your wireless audio-visual transceiver system, will others receive my signal?

Answer: If others use our company''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s wireless audio-visual transceiver system in the area near you, they may receive your transmission signal. If there are special needs, we can provide image/sound encrypted transmission services.

 8. How many sets of your equipment can be used in the same area? In other words, how many points can be used?

Answer: Our wireless audio-visual transceiver system can provide 4 channels, which means that currently, 4 points can be used in the same area.

 9. How many types of antennas are there? What is the role of each?

Answer: There are generally two types of antennas in wireless audio-visual transceiver systems, namely directional antennas and omnidirectional antennas. As the name implies, a directional antenna refers to transmitting a signal in a specific direction, while an omnidirectional antenna transmits a signal to the surroundings. In general, if it is a point-to-point transmission, a directional antenna is used; if it is a point-to-multipoint transmission, an omnidirectional antenna is used.

 10. Is the external antenna used on the transmitter or the receiver?

Answer: Both are okay. It is usually used on the transmitter. Of course, the effect will be better if the transmitter and receiver are equipped with external antennas.

 11. What model of machine needs an external antenna? How effective is the external antenna? Why after adding an external antenna, the transmission distance is closer or worse than using the original small antenna?

Answer: Under normal circumstances, wireless audio-visual transmitters with a transmitting power greater than 1000mW can be equipped with an external antenna;
Using an external antenna, in an open and barrier-free environment, the transmitter''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s transmission distance can be increased by 30%-70%;
If an external antenna is connected, the effect is not as good as the original small antenna. It may be that the external antenna is not connected properly. These connections include the connection between the connectors on the antenna, the connection between the antenna and the transmitter, especially with the transmitter. For the antenna connector connected to the machine, the wire core in the middle must be accurately inserted into the small hole in the transmitter antenna connector, otherwise, the external antenna will not work at all.