LPRS launches narrowband radio modules

A Low Power Radio Solutions product story
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Edited by the Electronicstalk editorial team Jul 14, 2009

LPRS has announced the launch of the latest narrowband radio modules from Circuit Design.

The ultra-compact transmitter CDP-TX-05M-R and receiver CDP-RX-05M-R supersede the CDP-TX-04S-R and CDP-RX-03AS/BS-R modules, maintaining their size and low power consumption (10mW) while offering multi-channel operation.

LPRS has announced the launch of the latest narrowband radio modules from Circuit Design.

LPRS has announced the launch of the latest narrowband radio modules from Circuit Design.

Multi-channel operation allows the user to ensure reliable wireless communication by on-site selection to a channel that is not affected by local interference.

The modules operate at 426MHz for Japan, 434MHz or 869MHz for Europe, and 915MHz for the US and each may be switched between four pre-programmed channels.

In addition, the alternative frequencies can be customised according to requirements.

The compact CDP-TX-05M-R and CDP-RX-05M-R are supplied in a shielded enclosure and require just a small number of external components to produce a complete wireless system for industrial use.

They are both pin compatible with the existing CDP-TX-04S-R transmitter and CDP-RX-03AS-R receiver modules.

High-frequency stability is ensured by the use of a TCXO as the reference oscillator circuit of the radio module and the operating temperature range has been increased to -20C to +65C.

With the output of 10mW (1mW in Japan, 0.5mW in the US) authorised for narrowband FM and double superheterodyne receivers with high receive sensitivity in the European harmonised ISM band, a communication range of 600m (line-of-sight) is possible.

Other standard features of these wireless modules include RandTTE (EN300220) and RoHS compliance, FCC Part 15.249, and small size.

The transmitter measures 22mm x 12mm x 6mm and weighs 3g, while the receiver measures 36mm x 26mm x 8mm and weighs 13g.

The devices have four RF channels with narrowband FM 25kHz channel spacing and a high sensitivity double superheterodyne receiver with -120dBm sensitivity (434MHz SINAD 12dB).

Typical applications include industrial remote control, security and alarms, telemetry and monitoring systems and tracking systems.

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