SAGEMCOM SE681 WiMAX User Manual page 13

If you use the integrated antenna:
Position the SE681 WiMAX directly in a window, so that the side with the LEDs and

connectors is pointing into the room, towards you. Wherever possible, position the
SE681 WiMAX on one of the upper storeys. Note that obstructions, particularly
doors and wall coverings containing metal can affect data transmission.
Position the SE681 WiMAX as far away as possible from metallic objects and

coated foils.
SE681 WiMAX with integrated antenna
PC with SE681
WiMAX
Choosing your location
WiMAX network
base station
13