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LMD-401

Product catalog summary

Overview: The LMD-401 is a synthesized multi-channel transceiver module operating in the 458 to 462.5 MHz band, designed for compliance with FCC Part 90 and ISED RSS-119 standards for the US and Canadian markets. It is intended for embedding in user equipment for low power industrial telecontrol and telemetry applications.

Applications: The module is suitable for industrial remote control, remote monitoring, SCADA, security, telemetry, and data acquisition.

Key Features:

FCC and ISED compliant
Operates in the 458.0 to 462.5 MHz band
Programmable RF channel with 12.5 kHz channel spacing
10 mW output power with GFSK modulation at 4,800 bps
Low power operation with a supply voltage of 3.0 to 5.5 V
Compact size: 50 x 30 x 9 mm
Excellent vibration and shock resistance
Wide operating temperature range: -20 to +65°C

Specifications:

Transmitter: PLL controlled VCO, 10 mW RF output power, +/-2.4 kHz deviation, spurious emission < -37 dBm (below 1000 MHz), adjacent channel leakage power < -20 dBm.
Receiver: Double superheterodyne type, IF frequencies of 21.7 MHz and 450 kHz, sensitivity of -116 dBm, co-channel rejection of -7 dB, spurious response rejection > -44 dBm, blocking > -20 dBm, adjacent channel selectivity > -50 dBm.
General: Simplex and half-duplex communication, F1D emission type, frequency stability of +/-2.5 ppm, RF bit rate of 4,800 bps, TX/RX switching time of 15 ms, dimensions of 50 x 30 x 9 mm, and weight of 25 g.

Contact Information: Circuit Design, Inc., 7557-1 Hotaka, Azumino, Nagano 399-8303, Japan. Tel: +81-(0)263-82-1024, Fax: +81-(0)263-82-1016.

Catalog excerpts

UHF Narrowband Multi Channel Transceiver LMD-401 458 to 462.5 MHz is a synthesized multi channel transceiver module designed to meet FCC Part 90 and ISED RSS-119 for the US market and Canada respectively. This small, highly integrated and fully shielded module is designed for embedding in user equipment. The module is suitable for various low power industrial telecontrol and telemetry applications. FCC and ISED compliant 458.0 to 462.5 MHz band Programmable RF channel with 12.5 kHz channel space 10 mW, GFSK 4,800 bps Low power operation 3.0 to 5.5 V, 46 mA (TX), 36 mA (RX) Small size 50 x 30 x 9 mm Excellent vibration and shock resistance / Mechanical durability Wide operation range -20 to +65 C Industrial remote control Remote monitoring / SCADA / Security Telemetry Data acquisition Applicable standard Communication method Simplex, Half duplex Emission type Channel spacing Frequency stability Operating temperature Supply voltage Supply current Transmitter part (All ratings at 25 C unless otherwise noted) Oscillation system Data input Spurious emission < -37 dBm (Frequencies below 1000 MHz) < -31 dBm (Frequencies above 1000 MHz) Adjacent channel leakage power Receiver part Receiver type Double superheterodyne Maximum input level Co-channel rejection Spurious response rejection Data output Adjacent channel selectivity > -50 dBm (+/-12.5 kHz, 2 signal method) Specifications are subject to change without prior notice Sales Division 7557-1 Hotaka, Azumino, Nagano 399-8303, Japan Tel:+81-(0)263-82-1024 F

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LMD-401

LMD-401

Catalog excerpts

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