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RF modules

SAW resonator based ASK transmitter and receiver modules with good frequency accuracy and stability are ideal for remote control applications including telemetry, remote alarm, remote sensing, mobile robots and wireless data transfers. The transmitter unit operates from 2V to 12V DC and the receiver unit operates from  3.3V to 6V DC.  A range of up to 500ft is possible in open area.

RF Transmitter - TLP434A features:
• Frequency: 433.92MHz
• Operating Voltage: 2 - 12V DC
• Data Rate: 4.8K bps
• Output Power: 14 dbm
• Works with: Dragon12, MiniDRAGON+, Fox11 and EVBplus2 boards

RF Receiver - RLP434A features:
• Frequency: 433.92MHz
• Operating Voltage: 3.3 - 6V DC
• Data Rate: 4.8K bps
• Sensitivity: -110 dbm
• Works with: Dragon12, MiniDRAGON+, Fox11 and EVBplus2 boards

Datasheet  from manufacturer
Sample software  from the University of Adelaide's web site  ( at the end of page )

Low cost antenna:
The antenna shown on the Dragon12 picture is a whip antenna. The whip antenna is fairly expensive. For most applications you can just solder a wire instead and it should have a range of several hundred feet. Since the RF carrier frequency is 433 MHz you can calculate its wavelength which is 2.2715 feet from the following web site:

http://www.1728.com/freqwave.htm

You can make a wire at 1/4 of the wavelength to be used as an antenna.  It's about 7 inches.

If you have any questions, please mail us at sales@EVBplus.com.