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Saelig releases STD-302Z UHF Narrow Band Multi-channel Transceiver


May 30, 2018
By Manufacturing AUTOMATION

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May 30, 2018 – Saelig has introduced the STD-302Z 434MHz Narrow Band Multi-Channel Transceiver, describing it as a half-duplex UHF radio module suitable for industrial remote control and telemetry applications operating in the 434MHz ISM band. The STD-302Z is designed with SAW filter and narrow-band filtering techniques to provide data communication in industrial situations where interference rejection and practical distance range operation are required.

Offering 10mW of RF power from its PLL-synthesized transmitter with programmable RF channels, the STD-302Z’s double super-heterodyne receiver sensitivity is specified down to -119dBm. The STD-302Z has an operating temperature of -20 to 60 degrees C and provides “excellent vibration and shock resistance for products that are mobile or subject to movement,” explains the company. An RSSI (Received Signal Strength Indication) output is also provided; the RSSI voltage output corresponds to the received signal level. This voltage can be used for functions such as carrier sense, channel auto select, and electric field strength monitoring. When the STD-302Z is powered on, data transmission and reception is possible 40ms after the frequency setting data is sent to the PLL. Measuring 1.2 x 1.97 x 0.36 inches, the STD-302Z’s operating voltage is +3.0 to 5.5V, with internal circuitry operating at a regulated 2.8V.


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