Cinterion
®
Connect Shield User Guide
3 RF Interference
18
connect_shield_ug_v01 2017-01-13
Confidential / Released
Page 14 of 19
3 RF Interference
When stacking up the Connect Shield with other shields as well the Arduino together with the
PCB antenna, high power RF radiation from the high efficiency PCB antenna may interfere with
other shields or the Arduino, especially in 2G mode with up to +33dBm output power. This in-
terference may results in signal distortion caused by RF demodulation. In such cases it is rec-
ommended to separate the antenna from the shield and increase the distance.