EXPERT ELECTRONICS SUNSDR2 DX SDR TRANSCEIVER GEN5

The Expert Electronics SunSDR2 DX GEN5 hardware version transceiver based on the well-known SunSDR2 PRO transceiver with several hardware improvements. It is a 100W-HF; up to 80W-6M*; 8W-2M transceiver, very compact, has a separate connector for active cooling and improved supply system, meaning it’s perfectly suited for DXpeditions and contest operators. Also, we’ve added a separate connector for an external ATU, thus SunSDR2 DX has all the functionality you got used to in our radios and even more. Improved hardware along with the ExpertSDR2 software makes this high-performance SDR transceiver the perfect base station. The evident choice for a true contester!

Expert Electronics SunSDR2 DX Improvements:

• 100 watt transmit power on HF, 80 watt on 50 MHz*
• New ATU connector for future antenna tuner option
• External Fan connector added
• 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
• Improved VHF LNA (PGA103+ chip)
• New high-performance built-in stereo audio codec 24 bit with 114 dB dynamic range
• Anderson Powerpole power connector
• Ground connector added
• Sturdy DIP-type ExtCtrl connector
• Improved PCB topology
• Lower power consumption and improved power dissipation

Hardware improvements of Gen5 (late 2022) in comparison to Gen1 (November 2019):

• Redesigned heatsink, with thinner and more frequent gills for higher effectiveness
• Improved temperature sensor placement for more accurate temperature readings
• Improved TX IMD3 up to ~37 dB across all HF bands, with 100W output power
• 6M output power have been increased up to 80W
• Improved SDR PCB protection from cross-talks. Improved 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
• Slight improvement of the RX path
• Redesigned TX filter of the DAC chip, which provides better linearity of the TX signal
• Redesigned band pass filter on the PA input, which improves linearity of PA operation
• Improved structure of 160, 6M TX filters
• RX/TX switching node on PCB is more resilient now

Expert Electronics SunSDR2 DX 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, up to 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 like SDC (with its own Skimmer), LogHX, SWISSLOG and RUMlog, more are coming
• 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)
• Minimal delay in CW mode (about 10 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

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

** These functions are supported by the transceiver’s hardware, but is not implemented in the ExpertSDR2 software. They will be supported in the future ExpertSDR2 software releases.
 

Expert Electronics ExpertSDR2 Software:

The ExpertSDR2 software package is used to control the SDR transceiver. In receiving mode the software provides two independent receiving channels with up to 312 kHz bandwidth. Each receiver has its own sub receiver. ExpertSDR2 runs under Windows XP/7/8/10 x32 or x64, Linux Ubuntu x64 and MacOS (MacOS currently beta). Minimum hardware requirement Intel Core i3 1.6GHz or higher, video card supporting OpenGL 1.5 and RAM 256 MB or more.
 

Expert Electronics ExpertSDR2 System Requirements:

• 2 or 4 core CPU Intel Core i3 or Core i5;
• 8 GB RAM;
• 40 GB free space on the HDD/SSD for the ExpertSDR2 and accompanied programs;
• 17′ or bigger monitor;
• video card with OpenGL 1.5 or higher;
• ExpertSDR2 supports Windows 7-10 32/64 bit, Linux (Ubuntu/Kubuntu 18.04 x64), and macOS 10.14 Mojave and higher.
   

Expert Electronics SunSDR2 DX box contains:

• SunSDR2 DX Transceiver
• LAN-cable 1.8m for connecting to local network
• Power cable 2.0m for connecting to power supply
• Two 6.3mm phono male to 3.5mm phono female adapters to connect a headset to the radio
• Mini UHF (male) to SO239 (UHF/PL female) pigtail adapter with 30 cm  RG58 coax
• External fan