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Digital Radio-Modem RM-D read more PDF The RM-D provides transmission and reception of the digital information on the radio channel in UHF range. The radio modem uses the external protocol of data exchange on RS-232 interface for data exchange. Has the built-in specialized transceiver. The indicator of receiving power that gives the opportunity to carry out adjustment of the antenna without special equipment is installed on the RM-D panel. The distance between information interchange points depends on type of antennas and length of the cables connecting the RM-D with antenna.It is used in electrical power engineering; in meteo, gas, seismic services; water supply; at management of industrial devices. The system of the communication and data exchange organization includes: - digital radio modem........................................2 pcs. - antenna......................................................... 2 pcs. - cable connecting antenna with RM-D .............2 pcs. SPECIFICATION | Central working frequency | (433±50ppm) MHz | | Working frequency range | 0...65 kHz | | Supply voltage from direct current | 12±2 V | | Transmitter output power P-1dB, no less than | 25...37 dBm | | Digital flow velocity no more | 2 kbaud | | Type of digital information security | CRC 16 | | Sensitivity of receiver at BER 10-3, no more | minus 100 dBm | | Communication | two-way alternate | | Modulation | FSK | | Output/ input signals type | ТTL | | Galvanic isolation between output and input | 5000 V | | Overall dimensions | 2007530 mm | | Weight without antenna no more | 750 g |
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