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RF Transmitter Receiver
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TX3A/RX3A-914-64 MHz North American Version RF Transmitter & RF Receiver
RF Transmitter & Receiver

The TX3A and RX3A are miniature UHF RF transmitter & RF receiver modules designed for PCB mounting. They allow the simple implementation of data links at speeds up to 64kb/s and distances up to 30m in-building or 120m over open ground.

Price Specs
1 pc.
$27.95 ea.
2-99 pcs.
$24.95 ea.
100-249 pcs
$21.75 ea.
250-499 pcs
$19.75 ea.
500+ pcs
Request a Quote


Full data sheets as PDF >


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RF Transmitter & Receiver features:
• Frequencies available as standard: 869.85MHz, 914.5MHz
• CE certified by independent Notified Body
• Verified to comply with Radio standard EN 300 220-3 by accredited Test Laboratory
• Verified to comply with EMC standard EN 301 489-3 by accredited Test Laboratory
• North American version conforms to FCC part 15.249
• Data rates up to 64kbps
• Fully screened


RF Transmitter – TX3A
• Crystal-locked PLL, FM modulated at up to 64 kb/s
• Operation from 2.2V to 12V @ 7.5mA
• Built-in regulator for improved stability and supply noise rejection
• 0dBm (1mW) nominal RF output
• Enable facility
• Update of the original TX3A with enhanced performance


RF Receiver – RX3A
• Single conversion FM superhet with SAW front end filter
• Operation from 2.7V to 16V @ 11mA
• Built-in regulator for improved stability and supply noise rejection
• -100dBm sensitivity @ 1ppm BER, 64kb/s version
• -107dBm sensitivity @ 1ppm BER, 10kb/s version
• RSSI output with 60dB range
• Enable facility
• Extremely low LO leakage, -120dBm typical


The TX3A RF transmitter module uses a frequency modulated crystal-locked PLL and operates between 2.2V and 16V at a current of 7.5mA nominal. At 3V supply it delivers nominally 0dBm (1mW) RF output. The SIL style TX3A measures 32 x 12 x 3.8 mm excluding pins.

The RX3A RF receiver module is a single conversion FM superhet RF receiver capable of handling data rates of up to 64kb/s. It will operate from a supply of 2.7V to 16V and draws 11mA when receiving. The RX3A features a fast power-up time for effective duty cycle power saving and a signal strength (RSSI) output with 60dB of range. Full screening and a SAW front-end filter give good immunity to interference. The SIL style RX3A measures 48 x 17.5 x 4.5 mm excluding the pins.

RF transmitter and receiver are available for operation in the 868-870MHz band in Europe and the 902–928MHz band in North America, both modules combine full screening with internal filtering to ensure EMC compliance by minimizing spurious radiation and susceptibility. These RF transmitter & receiver will suit one-to-one and multi-node wireless links in such applications as car and building security, EPOS and inventory tracking, remote industrial process monitoring and data networks. Because of their small size and low power requirements, both modules are ideal for use in portable, battery-powered applications such as handheld terminals.