Black GSM antenna, 21 cm. 3dbi gain. SMA connector for direct screw-on.
When the antenna is mounted on the GSM unit, it can be angled to have either a 45 or 90 degree inclination. The joint is located immediately after the plug.
If the transmitter is in a metal box and the antenna cannot stick out, then there will be no signal. In such situations, it is recommended to use a wired antenna that can be placed outside the box.
NOTE : We recommend that you use our 7 dBi antenna if the antenna is to be used in an installation where there is a poor signal. This is often the case in holiday home areas.
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