How do I position my M6 nodes to get the best coverage and signal?

• Place nodes in open locations around the M6 router 
• The higher the node is placed, the better coverage  
• Avoid placing nodes close to appliances which may cause signal interference. E.g. microwaves, 2.4 GHz wireless mouse, 2.4 GHz wireless telephones 
• Avoid placing your mesh nodes in a straight line