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SunSDR2 DX
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SunSDR2 DX

Original price was: $1,890.00.Current price is: $1,750.00.

(plus shipping calculated at checkout)

SDR Transceiver Gen6 100W HF/VHF

Availability: 9 in stock

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Description

The SunSDR2 DX is the smallest 100W HF/VHF SDR Gen6 transceiver, packing independent DDC/DUC RX/TX paths and contest-grade performance into a compact, expedition-ready design for DXpeditions and home stations. 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.

Key Features

  • Ultra-Compact 100W Design: Delivers 100W on HF, 80W on 6M, and 8W on 2M in the smallest form factor of its class, with active cooling and an upgraded power supply system for rock-solid operation anywhere.
  • Pristine TX Performance: TX IMD3 ~37 dB across all HF bands at full 100W output; dedicated HPF for VHF (100 MHz) and LPF for HF (70 MHz) eliminate strong out-of-band interference.
  • Enhanced VHF & Audio: New PGA103+ VHF LNA chip for improved VHF sensitivity; built-in 24-bit stereo audio codec (CS4272) with 114 dB dynamic range.
  • Native External ATU Support: Dedicated connector for the AAT-100 automatic antenna tuner.
  • Advanced Antenna Switching: 2 HF + 1 VHF (Mini UHF) antenna connectors with built-in support for predistortion—no external devices required.
  • Multi-Receiver Capability — 2 software RXs plus SubRX for each (4 slices total), plus an independent wideband bandscope up to 80 MHz.
  • Ultra-Low Latency CW — Monitoring delay in CW mode of approximately 2–3 ms.
  • Flexible Remote Operation — Connect PTT and CW key to the E-Coder panel; microphone and E-Coder link to a remotely set up PC for full remote control.
  • Seamless Software Integration — TCI interface for direct connection with popular third-party software; professional TX processing module with advanced voice tuning.
  • External Device Control — ExtCTRL connector with 8 powerful open-collector keys; ALC connector for external power amplifiers; 10 MHz external reference input.
  • Expandable RF Architecture — DAC OUT (SMA) for signal generator use; ADC IN and RX OUT (SMA) for inserting external filters in the RF path; support for VHF transverters.
  • Flexible Operating Modes — SO2V support, full-duplex and half-duplex modes.
  • Built-in Metering — Internal power meter for HF and VHF bands plus SWR meter for HF.
  • Fast Network Connectivity — Ethernet LAN interface for a reliable, high-speed link to your PC.

Find out more on the manufacturer’s website.

 

Specifications

RF ADC, bit @ MHz16 @ 160
ADC typeLTC2209
RX Frequency range, MHz0.1...65; 95...155
Independent software receivers2 + 2 SubRX
Sample rate, kHz @ bit39; 78; 156; 312 @ 24
Bandscope, MHz80
RX HF filters, MHz(LPF: 65 or 9 x BPF) + constant LPF: 70
RX VHF filters, MHz(WideRX: 95-155 or SAW filter for 2M: 144-148) + constant HPF: 100
BDR on HF, dB130
BDR on VHF, dB129
Sensitivity, uV0.2
DR IMD3, dB110
RMDR, dB119
ATT/Preamp, dB-20; -10; 0; +10
VHF LNA, dB27
RF DAC, bit @ MHz14 @ 640
TX Frequency range, MAll amateur bands 160-6; 2
Output power on HF, W100
Output power on 6M, Wup to 80*
Output power on VHF, W7 (up to 8)
TX IMD3 on HF, dB37 on HF / 30 on VHF
Local oscillator TCXO, MHz +/- ppm20 +/- 0.5
External 10 MHz oscillator input+
Built-in audio codec, bit / Dynamic Range, dB24 / 114
RF input/output2HF, 1VHF (Mini_UHF); ADC IN, DAC OUT (SMA)
PC interfaceLAN 100 Mbit
DC voltage range in RX/TX, V8...14.8 / 10...14.8
Recommended DC voltage, V13.8
Current consumption RX/TX, A1.2 / 24
Power consumption RX/TX, W16.5 / 330
Operating temperature, °C/°F0...+50 / +32...+122
Dimensions L x W x H, cm/inches18.5 x 16.5 x 10.5 / 7.48 x 6.69 x 3.14
Weight, kg3.96

* 80W until 53MHz, then output power is slightly decreased.

Specifications are subject to change without notice or obligation and specifications are only guaranteed within the amateur radio bands.

Hardware Evolution

Gen6.0

DateBatchSerial NumbersData
Feb 20261st, 2nd China
5th Russia		EED064225XXXXX
EED061026XXXXX
  • Optimized RF circuitry from the DAC to the power amplifier, resulting in a significant reduction in harmonic levels.
  • Upgraded 6M low-pass filter, resulting in additional harmonic suppression.
  • Upgraded 2M low-pass filter, resulting in a significant reduction in power loss.
  • Increased sensitivity of microphone inputs Mic1 by 4.2 times, Mic2 by 2.13 times.
  • Output power at the DAC OUT connector increased from +4 dBm to +9 dBm.
  • Optimized the VHF amplifier's BIAS node to improve stability.

Gen5.6

DateBatchSerial NumbersData
Aug 2023
Oct 2023
June 2024		8th TW
3rd RU
4th RU		EED062923XXXXX
EED063523XXXXX
EED061724XXXXX
  • Improved resilience of the PA input supply line.

Certain SunSDR2 DX units from earlier batches may have hardware upgrades from later revisions, rendering them Gen5 and newer.

Gen5.5

DateBatchSerial NumbersData
Oct 20222nd RUEED063122XXXXX
  • Improved structure of 80, 10, 2M TX filters.

Gen5

DateBatchSerial NumbersData
Dec 20227th TWEED064622XXXXX
  • Redesigned TX filter of the DAC chip, providing better TX signal linearity.
  • Redesigned PA input band pass filter, improving linearity of the PA operation.
  • Improved structure of 160, 6M TX filters.
  • More resilient RX/TX switching node on PCB.

Gen4

DateBatchSerial NumbersData
Dec 20216th TWEED064421XXXXX
  • Slight improvement of the RX path.

Gen3

DateBatchSerial NumbersData
July 20203-4-5th TW
1st RU		EED062920XXXXX
EED060121XXXXX
EED062021XXXXX
  • Improved TX IMD3 up to ~37 dB across all HF bands, with 100W output power.
  • Output power on 6M band has been increased up to 80W.
  • Improved SDR PCB protection from crosstalks and protection for the supply chain.
  • Added ferrite bead on the flex-cable connecting PA and SDR PCBs for more stable operation with external ATU.
  • Added filtering of the headphones' connector.

Gen2

DateBatchSerial NumbersData
Dec 20192nd TWEED065119XXXXX
  • Redesigned heatsink, with thinner and more frequent high effective grill.
  • Improved temperature sensor placement for more accurate temperature readings.

Gen1

DateBatchSerial NumbersData
Nov 20191st TWEED064219XXXXX
  • NA

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