SunSDR2DX HF / 6m / 2m


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SunSDR2DX HF / 6m / 2m


In stock


The SunSDR2 DX transceiver is the smallest 100W 160M-6M + 2M HF/VHF SDR transceiver in the world, which makes it an ideal companion for your future contests and DXpeditions. It is based on a popular, well-known SunSDR2 PRO model. On top of all our previous radios’ functionality, the SunSDR2 DX transceiver offers new features, such as compact hardware design, active cooling, improved power supply system and dedicated connector for a native external ATU. The upgraded hardware design coupled with the ExpertSDR2/3 software makes this high-performance SDR transceiver an outright base station for any DXpeditions and home use.

Hardware improvements in comparison to SunSDR2 PRO:

  • TX IMD3 ~37 dB across all HF bands, with 100W output power
  • HPF for VHF (100 MHz) to eliminate strong out-of-band stations coming from HF
  • LPF for HF (70 MHz) to eliminate strong out-of-band stations coming from VHF
  • New VHF LNA chip – PGA103+
  • New high-performance built-in stereo audio codec 24-bit with 114 dB dynamic range (CS4272)
  • Has a dedicated connector for an external tuner – AAT-100
  • Antenna switch supports Predistortion without external devices


Hardware evolution of SunSDR2 DX is described in the User Manual, section 2.2.1.

Main capabilities

  • Independent RX path based on DDC (Direct Down-Conversion) architecture
  • Independent TX path based on DUC (Direct Up-Conversion) architecture
  • Output power: 100W on HF, 80W on 6M and 8W on 2M
  • 2 software RXs + SubRX for each of them (4 slices total) + independent wideband Bandscope up to 80 MHz
  • Remote control operation, using it, you connect PTT and CW-key to the E-Coder panel. Microphone and E-Coder are connected to the remotely set up PC
  • TCI interface for seamless connection with third-party software, the list of software with TCI support
  • Professional TX processing module provides the most advanced tuning capability for voice operation
  • ExtCTRL connector to control external devices with 8 powerful keys with open collector
  • ALC connector for external power amplifiers*
  • Supports use of VHF transverters
  • An opportunity to use the transceiver as a signal generator via DAC OUT connector (SMA connector)
  • An opportunity to use external filters in the middle of the RF path, using ADC IN and RX OUT (SMA connector)
  • Monitoring delay in CW mode is about 2-3 ms
  • Input for external 10 MHz reference oscillator
  • An opportunity to use the transceiver in SO2V mode
  • Full duplex or half-duplex modes**
  • Antenna switch with 2 HF antenna connectors and separate VHF antenna connector (Mini UHF connectors)
  • Internal power-meter for HF and VHF bands and SWR-meter for HF band
  • Ethernet LAN interface provides a fast and reliable connection to PC

* ** These functions are supported by the transceiver’s hardware, but are not implemented in the ExpertSDR3 software.


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