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Zrabra®

315MHz / 433.92MHz Wireless Receiver Board Module AK-CW3400

Digg(100) ( 8 Reviews)
       
US $4.99
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Thanks for visiting! What you are viewing is the Wireless Receiver Module ? This is a very small single chip FM receiver module found in many portable media players. The heart of this receiver is the receiving module. It has the features of stable performance, high sensitivity, high anti-interfere, high quality. Its data is decoded by decoder IC.This Receiver Board Module can be used in wide area & also avail for the public to buy.
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Product Description

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  • Specifications:

    • Wireless access control system
    • Various anti-theft system
    • Industrial remote control, telemetry, remote sensing
    • Low baud rate data transmission
    • Other harsh environments, wireless remote control
    • This Wireless Receiver Module is convenient for customers to use and the material is good
    • This Receiver Module can be used in wide area & also avail for the public to buy
    • Operating Voltage: 5.0VDC ± 0.5V
    • The Working Current: ≤ 2.5mA (5.0VDC)
    • How It Works: Superheterodyne (VCO, PLL)
    • Works: OOK / ASK
    • Operating Frequency: 315MHz, 433.92MHz, special frequency can be customized
    • Working Temperature: -40 ~ +80 degrees
    • Sensitivity: Better than-110dBm (50Ω)
    • Rate: <9.6Kbps (315MHz,-95dBm pm)
    • Output Signal: TTL level transparent transmission
    • Antenna Length: 28cm / 11.2in(315MHz), 24m / 9.4in(433.92MHz)

    Details:

    Zrabra 315MHz / 433.92MHz Wireless Receiver Board Module AK-CW3400

    • Low power consumption, high sensibility of this Receiver Board Module

     Receiver Module

    Receiver Board Module

    Wireless Receiver Modul

    • Easy operation & installation
    • Make convenient for your daily use
    • Receiver Module has the features of stable performance, high sensitivity, high anti-interfere, high quality

    Application:

    • Remote control, remote measurement and remote sensing
    • Anti-theft alarm signal receiving and various remote controls for home-appliances

    How Do Remote Controls Work?

    • Generally, there are two types of remote controls: infrared (IR), and radio frequency (RF). Infrared remote controls work by sending pulses of infrared light to a device, while RF remote controls use radio waves in much the same way. Pragmatically, the biggest difference between the two is range. IR remote controls require a clear line of sight to the receiving device and their range maxes out at about 30 feet (9.14 meters). RF remote controls can go through walls and around corners, with a range of roughly 100 feet (30.48 meters)
    • Most home entertainment components such as stereos, televisions and home entertainment centers use IR remote controls. The remote contains an internal circuit board, processor, and one or two Light Emitting Diodes (LEDs)
    • When you push a button on a remote control, it transmits a corresponding code to the receiving device by way of LED infrared pulses. The idea is somewhat akin to flashing an SOS signal, but instead of letters, the flashing LED light is transmitting a series of 1s and 0s. The "1" might be represented by a long flash, while "0," a short flash. A receiver, built into the component, receives the pulses of light and a processor decodes the flashes into the digital bits required to activate the function
    • Along with the desired function, remote controls must also piggyback other data. Firstly, they transmit the code for the device they are controlling. This lets the IR receiver in the component know that the IR signals it is picking up are intended for it. It essentially tells the component to start listening. The function data follows, capped by a stop command to tell the IR device go back into passive mode
    • Some remote controls can be very finicky, requiring the user point the remote directly at the component. This is due to a weak transmitter. Changing the batteries can help, but if the transmitter itself is poor, pulses are transmitted in a narrow beam. More robust IR transmitters, and remote controls with double LEDs, transmit broader beams that allow the user to point the remote in the general direction of the transmitter
    • Sometimes it happens that a recliner or favorite spot on the couch does not have a clear line-of-sight to the entertainment center or television. Often a coffee table or some other object is in the way. When this happens we find ourselves raising an arm, trying to control the object "around" the device. This can get quite annoying, but there's an easy alternative
    • Since light bounces off objects it is sometimes more convenient to point remote controls towards a flanking wall or even the ceiling to change a channel or send a function command. The light will bounce off the surface of the wall or ceiling and scatter. If you bounce it at an advantageous angle, the scattering light will reach the component. Often it's easiest, with elbow resting on an armrest, to flip your wrist back and point the remote up at a wall behind you. This can work quite well, even though the remote is pointing in the exact opposite direction of the component. Once you find the easiest sweet spots around the room from which to bounce your signal, you can use these instead of struggling with trying to get around your obstructed line of sight
    • Garage door openers, alarm systems, key fobs and radio-controlled toys use RF remote controls. RF remote controls work essentially the same as IR remote controls, except they use radio waves. As stated, radio waves can also penetrate walls and go around objects and corners, making RF arguably more convenient than IR
    • Some high-end entertainment systems come with RF remote controls for expanded remote range. There are also IR-to-RF remote control converters that allow IR remote controls to extend their range through utilizing a RF translator that basically acts as a middleman. The RF converter relays the IR signal in RF waves to get it further. The converter on the component side reverts the RF signal back to IR so the component can understand it
    • Most home entertainment components such as stereos, televisions and home entertainment centers use IR remote controls. The remote contains an internal circuit board, processor, and one or two Light Emitting Diodes (LEDs)
    • When you push a button on a remote control, it transmits a corresponding code to the receiving device by way of LED infrared pulses. The idea is somewhat akin to flashing an SOS signal, but instead of letters, the flashing LED light is transmitting a series of 1s and 0s. The "1" might be represented by a long flash, while "0," a short flash. A receiver, built into the component, receives the pulses of light and a processor decodes the flashes into the digital bits required to activate the function
    • Along with the desired function, remote controls must also piggyback other data. Firstly, they transmit the code for the device they are controlling. This lets the IR receiver in the component know that the IR signals it is picking up are intended for it. It essentially tells the component to start listening. The function data follows, capped by a stop command to tell the IR device go back into passive mode
    • Some remote controls can be very finicky, requiring the user point the remote directly at the component. This is due to a weak transmitter. Changing the batteries can help, but if the transmitter itself is poor, pulses are transmitted in a narrow beam. More robust IR transmitters, and remote controls with double LEDs, transmit broader beams that allow the user to point the remote in the general direction of the transmitter
    • Sometimes it happens that a recliner or favorite spot on the couch does not have a clear line-of-sight to the entertainment center or television. Often a coffee table or some other object is in the way. When this happens we find ourselves raising an arm, trying to control the object "around" the device. This can get quite annoying, but there's an easy alternative
    • Since light bounces off objects it is sometimes more convenient to point remote controls towards a flanking wall or even the ceiling to change a channel or send a function command. The light will bounce off the surface of the wall or ceiling and scatter. If you bounce it at an advantageous angle, the scattering light will reach the component. Often it's easiest, with elbow resting on an armrest, to flip your wrist back and point the remote up at a wall behind you. This can work quite well, even though the remote is pointing in the exact opposite direction of the component. Once you find the easiest sweet spots around the room from which to bounce your signal, you can use these instead of struggling with trying to get around your obstructed line of sight
    • Garage door openers, alarm systems, key fobs and radio-controlled toys use RF remote controls. RF remote controls work essentially the same as IR remote controls, except they use radio waves. As stated, radio waves can also penetrate walls and go around objects and corners, making RF arguably more convenient than IR
    • Some high-end entertainment systems come with RF remote controls for expanded remote range. There are also IR-to-RF remote control converters that allow IR remote controls to extend their range through utilizing a RF translator that basically acts as a middleman. The RF converter relays the IR signal in RF waves to get it further. The converter on the component side reverts the RF signal back to IR so the component can understand it

    Package Included:

    • 1 x Receiving Module Board

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Average Customer Review:
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Matt

Bought this item on

04-19-2011

 
Receiving Module Board,
00:00:00 04-19-2011
man can i say its the best investment now i am gonna get more on the same channel so i can turn on a lot of things at once with one control
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D. Owens

Bought this item on

04-06-2011

 
Wireless Board Module
00:00:00 04-06-2011
it works great and was easy to configure. Literally took only one minute.
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David Gomez

Bought this item on

03-22-2011

 
Super convenient!
00:00:00 03-22-2011
I chose this product over the countless others you are no doubt considering, mainly because of how simple and clean the remote and outlet units look.
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LEO13

Bought this item on

03-16-2011

 
Handy Item to have connected to emergency vehicle lighting
00:00:00 03-16-2011
Item appears to be a good way to connect remote vehicle lights. Not connected as of this writting, will be soon
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tlambias

Bought this item on

03-11-2011

 
Receiving Module Board
00:00:00 03-11-2011
Car alarm works too good.I get in and out of the car and it trips. <br/>So it works great but is extra touchy. It was professionally installed. <br/>I can not complain, Universal Remote Control works great and what a good deal. No one will break <br/>into my car for sure so it serves it purpose, Would not chnge a thing.
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buenrt

Bought this item on

02-25-2011

 
Interesting product
00:00:00 02-25-2011
This is a very interesting product from a potential application perspective. The shortcoming is the sparseness of documentation about its implementation and specifics.
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Steve

Bought this item on

02-16-2011

 
Geneie
00:00:00 02-16-2011
These are great. Especially if you have more than one garage door openner.
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DaddyG801

Bought this item on

02-13-2011

 
Love it
00:00:00 02-13-2011
I still can't get over the price with everthing working great. Thanks for finding the great deals.
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