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Wireless Range 

Any electrical device, such as the computer monitor, Zip drives, speakers, etc., can cause interference with the wireless keyboard. Most likely, 

this will effect tracking of pointing devices or the range of the device. To make sure that your keyboard transmits and receives properly, refer to 

the following instructions: 

1.

 For optimal performance, place the receiver at least 8 inches (20 centimeters) away from 

other electrical devices, such as the computer monitor, Zip drives, speakers…etc. 

 

2.

 The effective distance of wireless keyboard should be no farther than 15 meters. This will 

ensure optimal communication between the keyboard and the USB receiver. 

 

 

NOTE: 

You should always get at least a 4 meters range. If you find that your cordless device gets less than 4 meters range, please 

replace the batteries with a fresh set, perform the synchronization procedure for the keyboard and test the range again. If the range is still 

below 4 feet, please test your device on another system, preferably in a different environment. If you find it gets the same range on 

another system, please contact us support to obtain information about a warranty replacement. However, if the range improves on 

another system, then it may be an environmental variable. Use the suggestions above to resolve the environmental interference issue.

 

 

Keep 8 inches 

Summary of Contents for GR-75

Page 1: ...2 4G RF Keyboard User s Guide Model GR 75 www a4tech com...

Page 2: ...rference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the...

Page 3: ...ive wireless environments It allows many wireless devices to operate simultaneously in one area without interfering in the range up to 15 meters Errorless 2 way communication technology features error...

Page 4: ...an 15 meters This will ensure optimal communication between the keyboard and the USB receiver NOTE You should always get at least a 4 meters range If you find that your cordless device gets less than...

Page 5: ...ame can cause problems with pointing device behavior and range Hardware Installation Plug receiver into USB port of your computer or notebook Insert the supplied battery making sure that the positive...

Page 6: ...to start installation 3 Follow on screen instructions to complete the installtion 4 The icon will appear on your desktop then you have successfully installed the software 5 To launch the software dou...

Page 7: ...se with the other receiver in the same product series you need to refresh the ID Code before using it Step 1 Right click on the icon in the taskbar and select Pair ID Program Step 2 Press Start Pair I...

Page 8: ...working environment and can reach to 15 meters without any interference to get optimal performance please adjust the distance between keyboard and receiver according to different situations 3 Avoid u...

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