Transmitter and Receiver Pair Narrow Band Multi-Channel

RadioMetrix Ltd has launched a new range of narrow-band multi-channel (LMT2 and LMR2) the provision of multi-channel OEM, power conservation, reliable data link. This combination of transmitter and receiver are well suited for low-power broadband when the modules do not have the range, or low-cost multi-channel is needed, but the functionality of the RF.

Narrow-band multi-channel transmitter and receiver pairThe devices can communicate at distances greater than 500 meters (on the proper use of antennas), the publisher of the sport with an output of +10 dBm (10mW) and the receiver sensitivity of - 120dBm (for 12dB SINAD). The transmitter / receiver combination can be configured to operate at a frequency of 433 MHz ISM band (frequency as other alternatives available, including the UK, 458MHz band). Both devices are managed from a 3.1 - 15V supply, the issuer of the current consumption of 34mA and its partners should 20mA. The maximum speed of the data is 5kbp / s for standard versions (a quasi-DC data recovery circuit improves performance with unbalanced information asynchronous).

The LMT2 and LMR2 are fully re-programmable via RS232 interfaces, a total of 32 discrete channels are programmed into the unit (of which 16 can be selected through a parallel port). These modules are suitable for targeting a wide range of tasks, including handheld terminals, equipment for environmental monitoring, barcode scanners, data loggers, data from the vehicle or download industry telemetry and remote access and security high-end systems. The LMT2 has a 33mm x 23mm x 9mm fully screened package, while the counterpart is 45mm x 23mm x 9mm. Both units are compatible pin-out, creating a common layout for one of them. These radios are designed to conform to both EN 300 220-3 and EN 301 489-3 EMC standards.

Radio Modules Bring Re-Cycling Robots

Foundation offers LPRS-Robotics, the maker of the United Kingdom animatronics devices easy radio modules for wireless cycler, the state of the art presentation robot. Specially designed and built for the environment and education charity Waste Watch, cycler is used to their message of prevention of waste reduction, reuse and recycling in schools in Britain.

LPRS Radio Modules Bring Re-Cycling LifeTo cycler robots for recycling education programs in schools a "handler" is required, he said that this should be done by sending commands through a hidden radio transmitter powered by easy-Radios . Cycler five micro-controllers for the brains and nervous systems, a reader MP3 audio file, the amplifier and speakers to speak to him, and seven for the electric motors to move.

The manager can turn cycler move his arms, his head movement and has full control of the MP3 player that allows highly interactive dialogues instead.

Between what is said to do, cycler runs his own integrated personality that makes him look around, move his eyes to blink, while moving his head and arms. For practical reasons cycler is not allowed to drive, unless ordered to do so by his manager. This program allows the personality of the manager are both hands while cycler to move and speak, in general, look at what makes life easier for the presentation by keeping the audience's attention.

To date, it is estimated that the Foundation cycler Robotics robots visits 3 schools a day, some 750,000 were children and are an excellent way to their young audience's attention during the presentations.

David Buckley, managing director of the Foundation-Robotique comments, "My original drawings were based on chipsets and wireless modules that promised ease of use. In practice, I discovered I had to spend much time layers of software error correction to achieve a degree of reliable wireless connectivity. After I found easily 433MHz modules Radio transmitter and receiver, I thought, I 'I had no mistakes. I even turned off the error correction, I had to use and easy-Radio has not stopped working. simple Radio is easy to use, reliable, and I recommend it to anyone looking for a solution for wireless control. "

Barry Gillibrand, Managing Director of LPRS comments: "The experience of the Foundation-Robotics is a typical example of the simple answer to our Radio. An out-of-the-box and stress-free solution to replace cables over short distance wireless modules. Our software is simple and easy to use and ensure reliability, error-free wireless

communications".

LPRS - Wireless module is 55% smaller and costs less than predecessor

The new MU-2-R embedded RADIO module operates at 434MHz and brings together industrial quality and reliability while having dimensions of just 50mm x 30mm x 9mm it’s only 55% the size of the existing MU-1-R. Manufactured by Circuit Design (CDI), it is now available from LPRS.

The MU-2-R offers 128 RF channels and data speeds up to 4.8kbps with a transmission range from 500 to 700m. The new design is based on an RFIC to ensure very competitive pricing. A number of useful functions are available as standard. These include an RF Test command for evaluating radio environmental conditions at installation site, which allows measurement of received signal strength and floor-noise and packet test measurement of RF communication quality. Transmission POWER may be user selected between 1mW to 10mW to avoid interference with other RF networks. And the new module offers long-range communication from battery power, at 10mW the MU-2-R has a range of greater than 600m. For even greater range additional modules may be installed as relay stations.

”CDI are at the leading edge of short-range radio module design. The new MU-2-R offers more performance in a smaller package and will be ideal for new applications emerging in industrial automation and building control," said Barry Gillibrand, managing director, LPRS. "SRD’s offer price and performance benefits over systems based on Zigbee or Bluetooth and LPRS have the depth of engineering experience to make sure our customers get the best possible WIRELESS solutions in the fastest development time.”

The new CDI MU-2-R offers enhanced error correction by using the Reed-Solomon code has which offers strong data recovery for errors caused by burst noise and can improve the receiver sensitivity by more than 5dB. Reed-Solomon code is also used on CD’s, satellite communications and digital TV broadcasting. With a wide operating temperature range, from –20C to +65C the MU-2-R is ideal for industrial applications.

Typical applications include long-range WIRELESS communications and industrial communications within single buildings or multiple buildings on an industrial site, says the company.

Laird - New RF modules push the limits with 2.4GHz radio performance

A new range of proprietary RF modules, providing a new standard of performance for 2.4GHz RADIOs has been announced by Laird Technologies.

The LT2510 is a fifth generation 2.4GHz FHSS module that 'sets the standard' for industrial RF communication. Based on its established proprietary FlexRF technology and operating in the globally available 2.4GHz spectrum, the LT2510 is optimized to outperform conventional WIRELESS standards, says the company.

"Wireless standards always involve a degree of compromise in that they have difficulty meeting extreme levels of performance requirements," said Nick Hunn, advanced technology director, Laird Technologies. "The LT2510 is optimized to deliver outstanding performance in terms of range or POWER consumption, taking it beyond the bounds of the standards-based offerings, while maintaining a competitive cost."

Embedded with Laird Technologies' robust server-client protocol, the LT2510 permits each module to communicate with any other in-range module for true peer-to-peer operation. Modules 'out of range' can be reached via a meshing topology. The configuration and test software enables OEMs to structure and optimize networks to suit their application.

Enhanced API commands provide packet routing control and network intelligence. With its field-proven FHSS air interface protocol, the LT2510 rejects RF noise, excels against multipath scenarios, allows for co-located systems, and provides an extremely reliable communication link.

With over 150Kb/s throughput in half-duplex mode, the LT2510 delivers speedy data rates. In addition, variable output power options (up to one watt) enable communication over distances that are not achievable with competing technologies. A range of ultra-low power modes, plus low TX/RX power consumption, make the LT2510 ideal for power-restrictive or battery-operated applications. The SMT package is well-suited for space-constrained designs and is available in pick-and-place packaging for volume manufacturing, says the company.