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7-10Km 250mW FHSS Wireless Transceiver RF Module TTL UART and USB

7-10Km 250mW FHSS Wireless Transceiver RF Module TTL UART and USB

Long range FHSS 250mW RF module

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BV250RFL Long Range 250mW FHSS Transceiver for FPV, LRS, RC robots or other projects.




The BV250RFL RF Module combines a state-of-the art low power Analog Devices ADF7020 chip-based-transceiver with a powerful multipoint-to-multipoint frequency Silicon Labs C8051F311 protocol controller to form a complete wireless communication solution. With a simple UART interface, a 132.5dB link budget, and very low power operation modes, the BV250RFL module is excellent for FPV, telemetry, LRS, RC, robots projects and any other application requiring reliable communications around buildings but running off a battery (Range exceeds 5 miles + LOS with a -2 dBi gain 1/2 wave dipole antenna life and low cost. The module can operate as a transparent wire replacement solution; it can also operate in a peer-topeer networked mode that supports node addressing and assured delivery. Data is validated usingan internally generated CRC-16 and encoded using a proprietary algorithm. Multiple modules can operate on the same channel because of the built-in carrier-sense-multiple-access (CSMA) feature inside the on-board controller. The module allows users to select the best data rate to optimize the application’s data throughput and range requirements. The module has a raw maximum RF data rate of 152.23kbit/second and can be optimally matched to the UART data rate, which can be programmed from 2.4 to 115.2 kbit/second. The BV250RFL module employs frequency hopping spread spectrum (FHSS) modulation. There are thirty-two separate hopping channels in a hopping table, and the designer can program the module to use one of six hopping sequences. The module has been equipped with four variable power adjustable steps and automatic gain control (ADC) that allows for multiple modules operating in close proximity. The module has two digital RSSI registers available to the user.


Board Features:

  • Frequency Hopping Spread Spectrum
  • Features the Analog Devices ADF 7020 transceiver chip
  • Variable Output Power(4 steps from +8dBm to 23.5 dBm)
  • Automatic Gain Control (AGC)
  • 250mW RF Power
  • True UART to Antenna solution
  • 152.34 kbit/ sec. Max RF data rate
  • 32 bit MAC addressing mode assigned at factory
  • 16 and 32 user defined addresse available
  • 5V power supply direct from USB or external power.
  • 132.4dB link budget
  • Size 45x37mm



1. Frequency Band: 902 to 928 MHz

2. RF Performance

  1. a. 6 Hopping Sequences
  2. b. 115 kbps Max RF Data Rate (effective
  3. c. +23.5 dBm TX Power
  4. d. -104 dBm Max RX Sensitivity

3. Power

  1. a. USB: 5V or external power 5V
  2. b. TX IDD: 195 mA  250mW
  3. d. RX IDD: 25 mA
  4. e. Deep Sleep: 3 μA
  5. f. Sleep/ Standby: 1500 μA/ 1500 μA

 4. Operating temperature:

-40 degrees C to +85 degrees C

Package include: one fully assembled and tested BV250RFL FHSS Long Range data transceiver.  Ready to use! You need only mini USB cable and antenna. I can provide software for configuration all registers trough USB connection.



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