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3 R201211-V07 

F) Specifications 

 

Transmitter - Tx 

Receiver - Rx 

Model 

KW24K  -  Kit 

 

KW2425   -  Tx 

KW2420  -  Rx 

Video Type 

NTSC / PAL 

Video Compression 

MPEG4 

Video Resolution 

720x480 @ 30fpts (NTSC) or 768x576 @ 25fps (PAL) 

Operating Frequency Band 

2.400GHz~2.4835 GHz 

Data Rate 

Up to 6Mbps 

Receiver Sensitivity 

-- -85dBm 

Transmission Channels 

80 channels auto selection 

Modulation 

16QAM/QPSK/BPSK 

Video Bit Rate 

Up to 12Mbps 

Video Input Level 

1V p-p, 75 ohms 

1±0.2V p-p, 75 ohm 

Audio Input Level 

1V p-p, 600 ohm (STEREO) 

1±0.2V p-p, 600 ohm (STEREO) 

Audio/Video Port 

In, 1x Video, 2x Audio (L/R) 

Out, 1x Video, 2x Audio (L/R) 

Random ID Code 

Up to 4 million sets 

Antenna 

Omni-directional, 3dBi 

Operational Range 

Up to 500ft / 150 (clear line of sight) 

PA Output Power 

16dBm 

Maximum Transmission Power

100mW -- 

Power Consumption 

1.9W 

Power Supply 

5V DC, 1.2A for AC Adaptor 

Dimension 

76mm x 73mm x 24mm 

Weight 

82g 

*Specifications are subject to change without notice 

 
 

G) Troubleshooting 

 

Problems Possible 

Solution 

No picture or sound 

Check all cable connections 
Make sure power plugs are pushed all the way in 
Check power switches on the remote TV or DVR and Video source (Camera, Camcorder, 
etc.) 
Check if the POWER LED of the Tx and Rx are lighted. The LINK LED should be lit under 
normal operation. 
If their LINK LED are not lit, re-pair the devices by following the instructions in section E of 
this manual. 

Interference: picture or audio 

Adjust Tx and Rx antenna orientation 
Try to place Tx and Rx closer to one another. 

If using a microwave oven, turn it off. 

Remove microwave oven from path between Tx and Rx. 

 
 

     Cautions

 

1.  Be sure the Tx and Rx are connected to the equipment correctly (e.g. Connect the transmitter to the camera, and the receiver 

to the TV or DVR). 

2.  When DC plug is pulled out from Tx or Rx, wait a few seconds before inserting it again. 
3.  Adjust antenna to decrease interference (vertical or horizontal). 
4.  For optimal reception, place the devices in an un-obstructed environment (open space) and/or in direct line of site. Place the 

device as high as possible to avoid obstacles and at least 5ft / 1.5m from one another. 

5.  If for some reason the devices stop working, try to turn power off and back on again after 30 seconds for them to re-link. 
6.  It is suggested not to exceed 10 pairs of Tx and Rx in any one location. 

 
 
 
 
 
 
 
 
 
 
 
 
 

LIMITED ONE (1) YEAR WARRANTY AND EXCLUSIONS

Manufacturer warrants to the original consumer purchaser and not for the benefit of anyone else that this product at the time of its sale by Manufacturer 
is free of defects in materials and workmanship under normal and proper use for one (1) year from the purchase date. Manufacturer's only obligation is 
to correct such defects by repair or replacement, at its option, if within such one (1) year period the product is returned prepaid, with proof of purchase 
date, and a description of the problem. This warrant excludes and there is disclaimed liability for labor for removal of this product or reinstallation. This 
warranty is void if this product is installed improperly or in an improper environment, overloaded, misused, opened, abused, or altered in any manner, or 
is not used under normal operating conditions or not in accordance with any labels or instructions. 

There are no other implied warranties of any 

kind, including merchantability and fitness or a particular purpose

, but if any implied warranty is required by the applicable jurisdiction, the 

duration of any such implied warrant, including merchantability and fitness of or a particular purpose, is limited to one (1) year. 

Manufacturer is not 

liable for incidental, indirect, special, or consequential damages, including without limitation, damage to, or loss of use of, any equipment, 
loss sales or profits or delay or failure to perform this warranty obligation.

 The remedies, provided therein are the exclusive remedies under this 

warranty, whether based on contract, tort or otherwise.  

Summary of Contents for KW2425

Page 1: ...sing this 2 4GHz Digital Audio Video 4CH Transmitter Receiver Kit you can enjoy greater convenience and security in many ways Connect a camera to a wireless security system Monitor your sleeping baby playing children the elderly or the disabled on TV using your existing camcorder See who is outside the door on TV through your camera or miniature CCD camera Monitors and records meetings from anothe...

Page 2: ...by inserting the power adaptor jack 2 Press the pair button of Tx or Rx and do not release until the power LED begins to flash 3 The devices will enter into pairing state and automatically link to one another by ID code 4 Do not unplug the power during the paring process 5 When pairing is completed the power LED for both devices will stop flashing and stay lit This system uses 5V DC Do not use any...

Page 3: ... interference vertical or horizontal 4 For optimal reception place the devices in an un obstructed environment open space and or in direct line of site Place the device as high as possible to avoid obstacles and at least 5ft 1 5m from one another 5 If for some reason the devices stop working try to turn power off and back on again after 30 seconds for them to re link 6 It is suggested not to excee...

Page 4: ...Data Transmitter Receiver Kit Model KW5905 Features 2 in 1 digital audio to video data kit With coded decoded to secure your images H 264 compression 30fps RS 485 for PTZ Two way audio communication 5dBi omni directional antenna 12V DC Transmitter Tx Receiver Rx ...

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