Wireless Microsite

Stable Narrowband Wireless Modules From Circuit Design Inc via LPRS

2nd October 2008
ES Admin
Low Power Radio Solutions (LPRS), has announced the introduction of the latest wireless modules from Circuit Design Inc. the leading narrowband radio module manufacturer. The CDP-TX-02E-R and CDP-RX-02E-R radio modules are intended for wireless enabled industrial products being designed for the US market.
The CDP-TX-02E-R and CDP-RX-02E-R are housed in small and robust shielded cases and require just a small number of additional components to make a working radio system, making it possible for the user to reduce the development time of wireless equipment significantly.

With narrow band FSK modulation the modules are very resistant to noise and the high sensitivity receiver ensures stable operation even in weak signal fields. The modules achieve a line-of-sight communication distance of more than 600 m with only 10 mW power output. While featuring a very small footprint the modules feature high frequency characteristics that guarantee high reliability, as well as resistance to mechanical vibration and shock.

Barry Gillibrand, Managing Director of LPRS comments; “The earlier release of European standard versions of the CDP-TX-02E-R and CDP-RX-02E-R radio modules has been very well received. They are now widely used in applications that require high levels of safety and reliability, such as industrial remote control. Now, in response to requests from many users, Circuit Design has released these new models for the US market. The US model runs at 457 MHz and the European model at 434 MHz and they are pin compatible, enabling users to develop products for both American and European markets with a common interface”

The modules have received wireless authorization with CE approval for the European model and FCC approval for the US model (Transmitter: FCC Part 90*2, Receiver: Part 15 equipment authorization). The radio frequency can be selected from 32 pre-programmed channels in 25 kHz steps, or by setting an arbitrary frequency channel. The modules have a wide operating temperature from -20°C to +60°C, suitable for indoor and outdoor use. With strong blocking performance and selectivity, the modules offer high reliability and stable operation even in high noise environments.

The main features of the new CDP-TX-02E-R / CDP-RX-02E-R 457 MHz include, part 90 compliant radio transmitter, narrow band FSK 25 kHz step / 32 RF channels, 1 mW/10 mW RF output selection, battery operation is possible at 3V @ 43 mA (10 mW) or 33 mA (1 mW), highly reliable receiver, double superheterodyne receiver circuit, high receiver sensitivity: -120 dBm (12 dB SINAD / BER 1%), blocking: 84 dB (+/- 1 MHz), adjacent channel selectivity: 60dB, operating temperature range from -20 to 60°C using a TCXO-based temperature compensation circuit, stable operation with all high frequency circuits required for transmitting and receiving enclosed inside the casing, transmitter size: 36 × 26 × 10 mm and receiver size: 50 × 30 × 9 mm

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