Hi，Robotis,
My controller is cm-700 and I use zig-100/110 to communicate with controller.But the problem is the distance of communication is too short.Even if at the open space,the maximum distance can only reach to 20 meter.While it should be 100 meter under normal circumstance.When the distance get out of 20 meter,the LED of the zig-100 keep flickering,then the controller can't receive data.
How could you give me some suggestion?Thank you.
![[레벨:30]](http://www.robotis.com/xe/modules/point/icons/default/30.gif "포인트:8136460point, 레벨:30/30"){kind=icon}
ROBOTIS
Hi David,
Normally when there is absolutely no wireless interference from cameras, lans, bluetooth, and any other wireless devices, the communication distance could be longer. However, from a normal environment, we recommend use within 10M. Even if it disconnects at 20M, it is still normal.
ROBOTIS