Low-power audio and video transmitters can be used for sleep-care for the elderly and infants in families with limited mobility. Near-distance wireless video surveillance can be used in various occasions such as spill shops, checkout counters, journalist forensics, and model aerial photography. In the above environment, you only need to purchase a good quality wired video camera to connect with our wireless video and audio transmitters. When you receive an AV connection with your TV, you can watch the live video from the front-end camera.
The use of skills: The product in a different environment, the transmission distance is different, such as in the use of the case of strong interference and obstacles, the launch distance, clarity may not reach the digital level indicated by the product. However, if it is in the open access barrier and ensure the camera quality and power is sufficient, it can reach the product's marked transmission distance. The dry worry mentioned here generally refers to the strong vibration sound and lightning flashes; the obstacles refer to high-rise buildings, hills, high-voltage poles, power plants and secret forests. The wall is thick and thin, the trees are dense, there are some cities or factories, the entire large area is a tall building made of reinforced concrete, as in this case there is also the possibility of penetration, if you use the transmission path encountered If this is an obstacle, try out the outdoor high-gain antenna. Antennas have – directional, omnidirectional; directional antennas transmit signals to a certain direction; omnidirectional antennas transmit signals to all directions. If it is a point-to-point transmission, a directional antenna can be used; if it is a point-to-multipoint transmission, an omnidirectional antenna is used. The antenna is usually installed on the transmitter side. If you want to get better results, you can install the antenna on both sides of the transmitter and receiver. Outdoor antennas can be installed at 200mW or more, and outdoor antennas can be installed in open and unobstructed environments. The transmission distance can be increased several times (depending on the antenna gain, 5DB increase in antenna gain corresponds to a doubling of the power of the transmitter). If an external antenna is connected, but the effect is not to use the original small antenna, the only possibility is that the external antenna is not connected. These connections include the connection between the connectors above the antenna, the connection between the antenna and the transmitter, especially The antenna connector connected to the transmitter must be accurately inserted into the hole in the transmitter antenna connector. Otherwise, the external antenna will not work. When testing, due to limited power supply, only one side of the room can be used to provide power for the transmitter, but not to provide power to the receiver in another room, which is just right for receiving. Machines and transmitters cause obstacles because buildings with reinforced concrete structures have the greatest resistance to radio waves. In order to avoid any obstacles, please ensure that there is no obstruction between the transmitter and the receiver as much as possible. The length of the connection between the receiver and the monitor can be extended and the length of the connection between the transmitter and the camera can be lengthened so that the antenna of the transmitter and the antenna of the receiver can interact with each other. Obviously, there are walls or other obstacles at the transmitting and receiving points. No matter the distance to be transmitted, you must extend the outdoors audio and video connection or install an outdoor high-gain antenna to bypass obstacles. Only by keeping the transmitting antenna and the receiving antenna visible to each other can we test our marked transmission distance and receive a clear image.
First use steps:
1. Turn on the camera (camera, camera), then connect the receiver to the monitor (television) and make sure the camera and monitor (television) work properly. Be sure to confirm that the transmitter and receiver supply sufficient current. Generally, the common transformer in the market is marked with 1000mA, and after careful measurement, only 700mA, the receiver we produce needs 12V450mA, and the transmitter below 500mw needs 12V/500mA power supply; 1W needs 12V1.25A switching power supply; 2000mw12V needs 2A switching power supply; 3000mw requires 12V3A switching power supply. In the unlikely event that there is no power source, the rechargeable battery or battery can be used to provide power. But the transmitter below 3000mw should not use 12V battery for a long time, because the voltage of 12V battery is more than 15V and it is easy to damage the transmitter. 2. Connect the transmitter, camera and power supply, then the receiver, monitor, power supply, and sound The video cable is connected, adjust the transmitter and the button on the receiver to select channel 1.2G4 channel transmitter to 1, the 28 channel receiver to 05; transmit to 2 receiver to 07; transmitter to 3 receiver Adjust to 09; transmitter dials 4 receivers to 11;
3, if the transmitter is 15 channels, the receiver is 28 channels, then in use, the transmitter and receiver channels are the same number of days, the environment can be more than a few channels to try, until the sound received And the images are very clear.
Special note: When you use this product, if there is a scrolling black bar on the monitor (television) screen, it may be a poor transformer with insufficient supply current or used for the transmitter or receiver; If the image is not clear, first check the camera you purchased (camera, camera), because the camera is what kind of clarity that is what clarity is received, it is recommended that you better with a better quality camera.
Signal interference, channel interpretation:
The number of channels provided by the ordinary manufacturers for wireless video transceiver system is four, and our video and audio transceiver system 12G provides more than 15 channel numbers, plus 2. 4G transceiver 8 frequency points with a total of 23 frequency points can be adjusted ( In the middle, it can be separated by 4 frequencies, and 19 channels can be used to completely avoid other people's channels.At the same time, 19 sets of transmitters can be used in the same area, providing two different transmission frequencies. The transmitters are respectively 0.9G four channels, 1.2G four channels, 1.3G four channels, and 2.4G8 channels a total of 16 channels, and the receiver can receive all of the above channels. A wireless analog video transmitter. Blocking solution:
1. The standard non-waterproof receiver is designed as the path for transmission between the waterproof front-end and the back-end, such as bridges, cars passing through, pole high-voltage cables, substations, iron towers, metal objects, mountains, and towers. , dense forest, basement, or more than 3 walls, metal billboard blocking, it is recommended to install the front of the launch and the rear of the receiver installed high, the front of the analog camera can not move, only the camera and transmitter connection cable to do ( Limited to 100 meters); Similarly, the signal monitoring room, hard disk recorders can also not move, only the receiver and the recorder's connection line length (100 meters);
Waterproof transmitter receives and sends a set of receiver is not waterproof, the user decided to install the height at both ends, the user must specify when receiving orders to do waterproof (receive customized waterproof type need to pay an additional 220 yuan).
Waterproof transmission, water-receiving After installation, the transmitting and receiving antennas are installed facing each other. (Microwave transmission signals are linear transmission waves) As far as possible, bypass the barrier!
2. Install the repeater at the top of the barrier:
After the machines at both ends are installed at high altitudes, they are still high and can't bypass the middle high-rise building. At this time, users can choose to install a wireless video relay at the top of the block (5 watt waterproof repeater set of 2200 RMB). The location of the relay installation must ensure that the repeater and the front-end transmitter, repeater, and back-end monitoring center are in a position free from large buildings and metal objects!
Second, close to the need for waterproof, such as 50 meters -700 meters, users do not want to use high-power launch, solution:
Note: Our company has only waterproof outdoor transmission power of 3000mW or more; so if the user is used in the distance, the high-power waterproof launch cost is too high, then the user can choose not to waterproof the low-power transmitter, do it yourself Simple waterproof case, the user separately purchases an outdoor antenna for launch (outdoor antenna with 1 meter long cable), and the purpose of the outdoor antenna purchased separately is to lead the transmission signal inside the waterproof case out of the box through the antenna, so that the launch The antenna and receiver can see each other in order to receive better images.
Third, the proposal:
When users use the installation conveniently, it is best to select the gain antenna dedicated to the receiver and the transmitter!
Because the outdoor booster antenna has 0.7-3 meters of high frequency cable, users need to extend the antenna connection of 2 to 3 meters. Each meter needs to add RMB 28 yuan. If you connect a high-gain antenna, keep the transmitter/camera, If the receiver in the surveillance room does not move, the position of the monitoring point can be adjusted by an external antenna. In this way, both the transmitted antenna and the received antenna can see each other and become visible distances, so that the received video signal is received. The effect is good!
Fourth, wireless analog video transmission, frequency introduction, description:
There are two types of frequencies:
(1) 1.2G, there are 15 frequency points can be selected, the user can according to the use of different environmental sites free to adjust the frequency point, to adjust to a clear image;
(2) There are 8 frequency points in 2.4G can be selected, the user can use the different frequency points in the environment when using the random frequency point, to the transfer to a clear image of the two frequency points of the transmission effect of advantages and differences:
(1) 2.4G, Advantage: Signal stability, anti-human interference; A little: The cell phone signal amplifier will interfere with 2.4G, the signal through the wall is weaker than 1.2G.
(2) 1.2G, Advantages: The penetration signal is better than 2.4G, without blocking the transmission distance (up to 6 km); slightly: not suitable for many occasions;
3. Common weaknesses of both frequencies: The transmission path is blocked by metal objects, and tall buildings, mountains, dense trees, and 3 wall blocks.
Fifth, the transmission path has tall building, mountain, dense tree, more than 3 blocks of the main wall block, it is recommended that the front end to use millions of high-definition digital cameras, with wireless bridge transmission equipment.
Wireless analog video transmission connection diagram;
1, 1.2G, 2.4G, non-waterproof transceiver use connection:
Elevator installation:
Wireless PTZ 485 signal control:
The use of skills: The product in a different environment, the transmission distance is different, such as in the use of the case of strong interference and obstacles, the launch distance, clarity may not reach the digital level indicated by the product. However, if it is in the open access barrier and ensure the camera quality and power is sufficient, it can reach the product's marked transmission distance. The dry worry mentioned here generally refers to the strong vibration sound and lightning flashes; the obstacles refer to high-rise buildings, hills, high-voltage poles, power plants and secret forests. The wall is thick and thin, the trees are dense, there are some cities or factories, the entire large area is a tall building made of reinforced concrete, as in this case there is also the possibility of penetration, if you use the transmission path encountered If this is an obstacle, try out the outdoor high-gain antenna. Antennas have – directional, omnidirectional; directional antennas transmit signals to a certain direction; omnidirectional antennas transmit signals to all directions. If it is a point-to-point transmission, a directional antenna can be used; if it is a point-to-multipoint transmission, an omnidirectional antenna is used. The antenna is usually installed on the transmitter side. If you want to get better results, you can install the antenna on both sides of the transmitter and receiver. Outdoor antennas can be installed at 200mW or more, and outdoor antennas can be installed in open and unobstructed environments. The transmission distance can be increased several times (depending on the antenna gain, 5DB increase in antenna gain corresponds to a doubling of the power of the transmitter). If an external antenna is connected, but the effect is not to use the original small antenna, the only possibility is that the external antenna is not connected. These connections include the connection between the connectors above the antenna, the connection between the antenna and the transmitter, especially The antenna connector connected to the transmitter must be accurately inserted into the hole in the transmitter antenna connector. Otherwise, the external antenna will not work. When testing, due to limited power supply, only one side of the room can be used to provide power for the transmitter, but not to provide power to the receiver in another room, which is just right for receiving. Machines and transmitters cause obstacles because buildings with reinforced concrete structures have the greatest resistance to radio waves. In order to avoid any obstacles, please ensure that there is no obstruction between the transmitter and the receiver as much as possible. The length of the connection between the receiver and the monitor can be extended and the length of the connection between the transmitter and the camera can be lengthened so that the antenna of the transmitter and the antenna of the receiver can interact with each other. Obviously, there are walls or other obstacles at the transmitting and receiving points. No matter the distance to be transmitted, you must extend the outdoors audio and video connection or install an outdoor high-gain antenna to bypass obstacles. Only by keeping the transmitting antenna and the receiving antenna visible to each other can we test our marked transmission distance and receive a clear image.
First use steps:
1. Turn on the camera (camera, camera), then connect the receiver to the monitor (television) and make sure the camera and monitor (television) work properly. Be sure to confirm that the transmitter and receiver supply sufficient current. Generally, the common transformer in the market is marked with 1000mA, and after careful measurement, only 700mA, the receiver we produce needs 12V450mA, and the transmitter below 500mw needs 12V/500mA power supply; 1W needs 12V1.25A switching power supply; 2000mw12V needs 2A switching power supply; 3000mw requires 12V3A switching power supply. In the unlikely event that there is no power source, the rechargeable battery or battery can be used to provide power. But the transmitter below 3000mw should not use 12V battery for a long time, because the voltage of 12V battery is more than 15V and it is easy to damage the transmitter. 2. Connect the transmitter, camera and power supply, then the receiver, monitor, power supply, and sound The video cable is connected, adjust the transmitter and the button on the receiver to select channel 1.2G4 channel transmitter to 1, the 28 channel receiver to 05; transmit to 2 receiver to 07; transmitter to 3 receiver Adjust to 09; transmitter dials 4 receivers to 11;
3, if the transmitter is 15 channels, the receiver is 28 channels, then in use, the transmitter and receiver channels are the same number of days, the environment can be more than a few channels to try, until the sound received And the images are very clear.
Special note: When you use this product, if there is a scrolling black bar on the monitor (television) screen, it may be a poor transformer with insufficient supply current or used for the transmitter or receiver; If the image is not clear, first check the camera you purchased (camera, camera), because the camera is what kind of clarity that is what clarity is received, it is recommended that you better with a better quality camera.
Signal interference, channel interpretation:
The number of channels provided by the ordinary manufacturers for wireless video transceiver system is four, and our video and audio transceiver system 12G provides more than 15 channel numbers, plus 2. 4G transceiver 8 frequency points with a total of 23 frequency points can be adjusted ( In the middle, it can be separated by 4 frequencies, and 19 channels can be used to completely avoid other people's channels.At the same time, 19 sets of transmitters can be used in the same area, providing two different transmission frequencies. The transmitters are respectively 0.9G four channels, 1.2G four channels, 1.3G four channels, and 2.4G8 channels a total of 16 channels, and the receiver can receive all of the above channels. A wireless analog video transmitter. Blocking solution:
1. The standard non-waterproof receiver is designed as the path for transmission between the waterproof front-end and the back-end, such as bridges, cars passing through, pole high-voltage cables, substations, iron towers, metal objects, mountains, and towers. , dense forest, basement, or more than 3 walls, metal billboard blocking, it is recommended to install the front of the launch and the rear of the receiver installed high, the front of the analog camera can not move, only the camera and transmitter connection cable to do ( Limited to 100 meters); Similarly, the signal monitoring room, hard disk recorders can also not move, only the receiver and the recorder's connection line length (100 meters);
Waterproof transmitter receives and sends a set of receiver is not waterproof, the user decided to install the height at both ends, the user must specify when receiving orders to do waterproof (receive customized waterproof type need to pay an additional 220 yuan).
Waterproof transmission, water-receiving After installation, the transmitting and receiving antennas are installed facing each other. (Microwave transmission signals are linear transmission waves) As far as possible, bypass the barrier!
2. Install the repeater at the top of the barrier:
After the machines at both ends are installed at high altitudes, they are still high and can't bypass the middle high-rise building. At this time, users can choose to install a wireless video relay at the top of the block (5 watt waterproof repeater set of 2200 RMB). The location of the relay installation must ensure that the repeater and the front-end transmitter, repeater, and back-end monitoring center are in a position free from large buildings and metal objects!
Second, close to the need for waterproof, such as 50 meters -700 meters, users do not want to use high-power launch, solution:
Note: Our company has only waterproof outdoor transmission power of 3000mW or more; so if the user is used in the distance, the high-power waterproof launch cost is too high, then the user can choose not to waterproof the low-power transmitter, do it yourself Simple waterproof case, the user separately purchases an outdoor antenna for launch (outdoor antenna with 1 meter long cable), and the purpose of the outdoor antenna purchased separately is to lead the transmission signal inside the waterproof case out of the box through the antenna, so that the launch The antenna and receiver can see each other in order to receive better images.
Third, the proposal:
When users use the installation conveniently, it is best to select the gain antenna dedicated to the receiver and the transmitter!
Because the outdoor booster antenna has 0.7-3 meters of high frequency cable, users need to extend the antenna connection of 2 to 3 meters. Each meter needs to add RMB 28 yuan. If you connect a high-gain antenna, keep the transmitter/camera, If the receiver in the surveillance room does not move, the position of the monitoring point can be adjusted by an external antenna. In this way, both the transmitted antenna and the received antenna can see each other and become visible distances, so that the received video signal is received. The effect is good!
Fourth, wireless analog video transmission, frequency introduction, description:
There are two types of frequencies:
(1) 1.2G, there are 15 frequency points can be selected, the user can according to the use of different environmental sites free to adjust the frequency point, to adjust to a clear image;
(2) There are 8 frequency points in 2.4G can be selected, the user can use the different frequency points in the environment when using the random frequency point, to the transfer to a clear image of the two frequency points of the transmission effect of advantages and differences:
(1) 2.4G, Advantage: Signal stability, anti-human interference; A little: The cell phone signal amplifier will interfere with 2.4G, the signal through the wall is weaker than 1.2G.
(2) 1.2G, Advantages: The penetration signal is better than 2.4G, without blocking the transmission distance (up to 6 km); slightly: not suitable for many occasions;
3. Common weaknesses of both frequencies: The transmission path is blocked by metal objects, and tall buildings, mountains, dense trees, and 3 wall blocks.
Fifth, the transmission path has tall building, mountain, dense tree, more than 3 blocks of the main wall block, it is recommended that the front end to use millions of high-definition digital cameras, with wireless bridge transmission equipment.
Wireless analog video transmission connection diagram;
1, 1.2G, 2.4G, non-waterproof transceiver use connection:
Elevator installation:
Wireless PTZ 485 signal control:
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