2.4GHz 4-Channel Remote Wireless AV Receiver Kit WRC810

Specifications:

• Receiving Frequency: ISM 2,400 ~ 2,483MHz
• Intermediate Frequency: 480MHz
• Frequency Stabilization: ±100KHz
• Demodulation Mode: FM
• Antenna: 50 ohm SMA
• Receiving Sensitivity: ≤-85dBm
• Video Output: 1Vp-p @ 75Ω, S/N>38dM
• Audio Output: 3Vp-p @ 600Ω
• Operation Temperature: -10 ~ +50 / +14 ~ +122˚C / ˚F
• Operation Humidity: 85%RH
• Power Supply: DC +12V

Features: 

• 420TV lines clear picture display
• Moreover, this 4 Channel Wireless Receiver transmitter works perfectly
• 4-channel available to channel scan and channel skip for multi-camera usage
• 4 Channel Wireless Receiver has built-in microphone for Audio monitoring
• Min. 100m transmission distance without block
• 2.4GHz transmitter receiver has excellent Audio/Video reception quality. For enhancing the Audio/Video reception quality, which adopt superior performance FM mode

Details:

• This 2.4GHz transmitter is 100% brand new and the wireless transmission device adopted the advanced international 2.4GHz wireless transmission technology

• With 4 frequency receiving channels available to channel scan and channel skip for multi-camera usage, you are enabled to choose your preference channels

• Without blocking, this 2.4GHz Transmitter is capable of receiving signals from up to 100m distance

Operation:

• Put the camera in the place where monitoring is needed
• Insert power adapter, the DC output plug of power adapter in the power Input jack of the receiver
• Use the AV Cable to connect one Channel of Audio and Video Input plugs of the TV set or Monitor
• Press the off/on key of the Remote Control, or press the Channel key of the Receiver and open the power adapter of the receiver. The receiver will acquiesce the channel 1 after opening
• Press the channel key (marked No.1, 2, 3 and 4) of the remote control and make the frequency of the Receiver corresponding to the transmitter Frequency of the Receiver
• Can see the video and listen to the voice through the television or monitor, adjust the place of the camera, aiming at the monitoring object then can make the valid monitor
• Press the On/Off key of the remote control, or press the channel button on the receiver for 3 seconds to turn off the power of the receiver

The Problems and the Solutions:

• The indicator of the cannel display window is not lighting. Check whether the socket of the power Adapter works well or not, and make sure the power switch is turning on
• The Receiver cannot receive picture or the picture-received flashes
• Please check whether the wireless camera have already put through the power
• Whether the distance between wireless camera and Receiver is too far or whether there is Electromagnetic shielding Barrier between Wireless Camera and Receiver (e.g.: Building of steel structure will make much hindrance to transmitting signal)
• In the range of receiving, don't make two Wireless cameras with the same Frequency work at the same time, otherwise they will cause interfering
• When the transmitting cameras of different frequency work at the same time, the distance between the cameras should be kept about or over 2 meters, otherwise receiving will be interfered
• If there are high-power transmission signals with the same frequency and car-mounted radio working around, they will cause

• AV (Audio/Video) Wireless Transmitter

 Circuit Analysis: 

• Q3, VC1, C13, C16 and L3 all make up a colpitts oscillator circuit that fluctuates form 220~250MHz. You can regulate the frequency to any value within this threshold by tuning VC1 or L3. C13 modulates the signal rate. When the capacitance increases, so does the modulation. R9 and C16 bias the local oscillation. If you lower R9's frequency to 680W the oscillator's output level will increase.
• Q2 and L2 act as a frequency doubler. C7, along with FCZ7S3R5 (IF transformer), the Q4 transistor, C14, C19 and R12 all make up the mixer. This mixer takes both audio and visual signals together and "mix" them into one and passes through RF Amplifier Q1 to transmit the signal to the antenna.

Installation:

• Fix the Transmitter, using the RCA Video, the Audio signal cable connect the transmitter and the single original equipment (eg, Camera, VCD)
• Check the two machine on the suitable position, then inserting the power adapter
• The Transmitter's installation is nearly the same as the receiver's, just the receiver need to be connected with the display equipment
• Confirm that it's right to install the Transmitter and the Receiver in two places, you can open all the power switches and set the Transmitter and the Receiver as the same channel
• Observe the accepting effect, by adjusting the tact of the angle of the Transmitter and the Receiver' antenna until get the excellent Video and Audio effect, the installation is over

Attention:

• If the original launch signal is one Audio channel, both of the Transmitter's Audio input and Receiver's Audio output should choose the same Audio channel, if the original launch is no Audio, the Audio line don't be connected

Package Included:

• 1 x 2.4GHz 4-Channel Remote Wireless AV Receiver
• 1 x Antenna for Receiver
• 1 x DC12V Adapter for Receiver
• 1 x AV line
• 1 x Remote Controller