Descrição do produto

SunSDR2 transceiver – is an up-to-date system of the amateur radio communication in the HF and VHF frequency bands with the digital signal processing. This device is designed to work with the PC via Ethernet (LAN) or via WiFi. Receive path is based on the direct conversion principle, transmission path – over the direct synthesis principle.

Main capabilities

  • Separate independent receive path based on Direct Down Conversion principle (DDC)
  • Separate independent transmitter, based on the Direct Up-Conversion principle (DUC)
  • Full or half-duplex mode *
  • Antenna switch for 2 antennas in HF
  • Built-in power-meter and SWR-meter in HF band
  • External control connector for other devices, 10 powerful keys with open collector
  • ALC connector for external power amplifiers
  • Input connector for connecting PTT footswitch
  • Input connector for connecting CW-key
  • Output Jack for headphones, impedance 8-10000 Ohm
  • Microphone input Jack for electret microphone
  • Microphone connector with PTT switch Yaesu MH-31, which contains microphone, PTT button and 3 additional functional buttons
  • Protection from polarity reversal
  • Ethernet LAN interface provides galvanic isolation between transceiver and PC
  • Transceiver’s calibrations are kept inside the device. No need for primary calibration
  • The possibility of remote work. PTT footswitch and CW-key are connected to the E-Coder panel, microphone – to the PC

* Full duplex mode is supported by the transceiver’s hardware but is not software implemented. This mode will be supported in the future ExpertSDR2  software versions.

Application field

  • Radio Amateur HF/VHF transceiver
  • Remote reception point for contests
  • SO2R/SO2V working contest-station
  • Spectrum analyzer with the spectrum scope up to 80MHz
  • Record air stations with the further reproducing

PC requirements

  • Processor Intel Core i3 and higher
  • Video card supporting the technology of OpenGL 1.5 and higher and RAM 256 Mbyte and more
  • Local network connector 100 Mbps or 1 Gbps
  • OS Windows XP/7/8 x32 or x64, OS Linux Ubuntu x64


ExpertSDR2 program is used to support SunSDR2 transceiver. At the present moment software works in the receiving mode and maintains two independent channels with the bands up to 312 kHz. DSP library, developed by the company Expert Electronics, allowed improving the receipt quality and higher the software reliability. Two OS are supported: Windows 8 and Linux Ubuntu.SSDR2_001


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