Narrowband radio transceiver The STD-601 400 MHz is a miniature transceiver designed for industrial applications. This module has selectable bands in a wide frequency range in the region of 400 MHz, conforming to the ISM bands in various countries. The STD-601 400 MHz has a simple serial interface and allows own communication protocol to be used. The RF power, data rate and channel can be set through the use of dedicated serial commands. ・ Small 20 x 32 x 5 mm SMD ・ Selectable bands possible within wide frequency range. - 429 MHz (Japan) / 434 MHz (EU) - 447 MHz (Korea) / 458 MHz (UK) ・ Maximum RF power 50 mW ・ Transparent interface for data input and output ・ Industrial remote control systems ・ Telemetry systems Communication method Simplex, Half duplex Emission type 429.1750 to 429.7375 MHz (429 MHz band 47 ch) 433.0750 to 434.7750 MHz (434 MHz band 137 ch) 447.2750 to 447.9875 MHz (447 MHz band 59 ch) 458.5000 to 459.1750 MHz (458 MHz band 28 ch) Supply voltage Supply current Operating temperature Transmitter part Frequency stability Spurious emission < -54 dBm (47 to 74, 87.5 to 118, 174 to 230, 470 to 862 MHz) < -37 dBm (Other frequencies below 1000 MHz) < -30 dBm (Frequencies above 1000 MHz) Adjacent channel leakage power Receiver part Adjacent channel selectivity UART 9,600 / 19,200 / 38,400 bps Data length: 8 bit, Parity: None, Stop bit: 1 * Unless otherwise specified, specifications are typical values obtained under 9,600 bps, 10 mW, 25 C, 434 MHz, 3 V *1 Possible but operation in line with specifications cannot be guaranteed Specifications are subject to change without prior notice Sales Division 7557-1 Hotaka, Azumino, Nagano 399-8303, Japan Tel:+81-(0)263-82-1024 Fax:+81-(0)26