The Siretta Delta 11 is an ISM direct connect stubby antenna measuring 90.2mm in length. It is a ¼ wave, helically wound, omni-directional antenna dedicated to 433MHz. With a centre frequency of 433MHz, this antenna resonates in a far more focused manner than wide band antennas, helping it to provide superior performance for short range ISM technology. 433MHz resides within the Industrial, Scientific and Medical (ISM) band. Common applications for ISM antennas are low power, short range applications such as: wireless sensory monitoring, street light control, smart metering, security systems, etc.
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