Product category:
Wireless Communications
News Release from: RF Solutions | Subject: QFMT5-434 and QFMR5-434
Edited by the Electronicstalk Editorial
Team on 22 June 2001
FM modules claim high datarates at up to
400m
Low power radio specialist Quasar claims to have the industry's first miniature FM radio modules to offer communication rates of 128kbit/s at distances up to 400m.
Low power radio specialist Quasar claims to have the industry's first miniature FM radio transmitter and receiver modules to offer communication rates of 128kbit/s at distances up to 400m The QFMT5-434 transmitter and QFMR5-434 receiver modules simplify the implementation and reduce the component count of one-to-one and multinode wireless links and provide 'drop-in' replacement of lower speed modules
This article was originally published on Electronicstalk on 28 Sep 2000 at 8.00am (UK)
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Remote control transmitters need no licence
RF Solutions has launched a series of rugged, licence-exempt hand-held radio transmitter encoders for remote control applications designed to operate in harsh and outdoor environments
Applications will include building security and car alarms, remote industrial process monitoring, computer networking and electric gate openers, with small size and low power consumption making the modules ideal for battery-powered, portable designs.
Supplied in a fully shielded miniature SIL package, the QFMT5-434 transmitter features no adjustable components, offers good resistance to shock and vibration and delivers a temperature-compensated RF output from -20 to +55C.
The QFMR5-434 high-sensitivity receiver is based on a single-conversion FM super-heterodyne design with double RF filtering that includes a SAW front end for maximum sensitivity.
Analogue and digital outputs allow for direct connection to a microprocessor or additional processing circuitry, while a received signal strength indicator (RSSI) provides a DC output voltage that is proportional to the RF input signal.
Designed to operate at the European licence-exempt frequency of 433.92MHz, the new modules can be used without an operating licence.
The transmitter can also be supplied in a version that operates at the licence-exempt frequency of 418MHz.
Fully pin-compatible with existing, lower speed modules, the QFMT5-434 and QFMR5-434 have dimensions of just 31.5 x 13.0 x 3.4 and 49.05 x 17.5 x 4.65mm, respectively.
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