![]() ![]() Performance wise, the PCB antenna can be as good as the whip if the design is correct. This type of antenna is cheaper and doesn't take much space as that of the whip antenna. The image above is an outdoor whip antenna and I found this antenna to be more effective than the indoor helical antenna that comes with the SIM800L module:Īnother type of antenna is the PCB antenna: Without an antenna, there would not be enough transmitting power for the SIM800L to perform GSM services such as calls and SMS. Here's a video showing these LED indications:Īntennas are essential for this kind of module especially if your project is indoors.
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December 2022
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