Walkie-talkie module/Data transfer module

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Walkie-talkie module/Data transfer module
Posting date : Mar 27, 2010
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Free Member Scince Mar 27, 2010
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85-
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Detailed Description
A1840 is a highly cost-effective fully integrated radio module, built-in high-performance RF transceiver chip, micro-controllers and RF power amplifier. The module is small, highly integrated, stable performance, flexibility application, and in line with most of the world radio standard, it is easy to pass CE/FCC certification; this module can be made into a simple walkie-talkie, it can also be embedded into other handheld terminal equipment in order to achieve wireless communications. Features: 1、Wide operation frequency range: 400-470MHZ; 2、Output power: 0.5/1W; 3、Low phase noise and little phase lock time (100us); 4、High frequency idetify, can write any frequency band; 5、Built-in temperature compensation circuit for Crystal frequency; 6、Adopt direct frequency synthesize mode for frequency modulation; 7、Transmit filter is based on DSP technology; 8、The TX gain can adjust by software; 9、38 CTCSS encode and decode; 10、High receiver sensitivity: -122dBm; 11、The full integrate filter for receiver; 12、FM and demodulates technology based on DSP technology; 13、Ultra low power sleep standby; 14、Package size: 18.9*35.6MM 15、Communicate via Asynchronous serial port AT command; 16、3.3-6.0(BAT) Voltage operating

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