System of amateur radio communication
with digital signal processing
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.
* Full duplex mode is supported by the transceiver's hardware but is not implemented in the ExpertSDR2 software. It will be supported in the future ExpertSDR2 software releases.
** ALC functionality is supported by the transceiver's hardware but is not implemented in the ExpertSDR2 software. It will be supported in the future ExpertSDR2 software releases.
The ExpertSDR2 software 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.
Transceiver SunSDR2 configuration
The transceiver can have additional option WiFi unit for work in wireless networks. In accordance with it at the rear panel can be either set or not WA connectors and the delivery set is changed.
In addition to the basic transceiver's configuration can be purchased the following devices:
|General coverage receiver in HF, MHz||0.09...65|
|General coverage receiver in VHF, MHz||95...148|
|Frequency coverage in HF in TX mode, MHz||All amateur frequencies|
|Frequency coverage in VHF in TX mode, MHz||144...148|
|Maximum transmitter's output power in HF, W||20|
|Maximum transmitter's output power in VHF, W||8|
|Blocking dynamic range in HF mode (BDR), dB||120|
|Blocking dynamic range in VHF mode (BDR), dB||>114|
|RF ADC clock frequency, MHz||160|
|RF ADC resolution, bit||16|
|RF DAC clock frequency, MHz||640|
|RF DAC resolution, bit||14|
|Recommended power supply, V||15|
|Supply voltage range, V||12...16|
|Local oscillator's stability, ppm||+/- 0.5|
|Maximum consumption current, А||5|
|Built-in audio codec resolution, bit||24|
|ALC input voltage range, V||0..4|
|Operating temperature, Celsius degree||0...+70|
* More modes can be supported via external software
Specifications are subject to change without notice or obligation and specifications are only guaranteed within the amateur radio bands.
User Manual Addendum version 5.3, by Erik EI4KF
Main characteristics of the SunSDR2 transceiver are given in the document
Short instruction how to connect the SunSDR2 transceiver to PC
User Manual for SunSDR2 PRO transceiver in German 12-02-18
User Manual for SunSDR2 PRO transceiver in Chinese 03-05-18
This guide describes how to setup ExpertSDR2 for use with one or two CW Skimmers
Both diagrams can be used for creating two working places with a single SunSDR2 transceiver.
In the document, you can find information about how to connect to external PA. Described the connection to transceiver a fan and relay to control the external BPF, antenna switch, etc.
This schematic diagram provides you to create special control cable by own hands. With this cable, you can connect the SunSDR2 transceiver to VL-1000 power amplifier from Yaesu and control bands switching and PTT mode.
Also, you can use this schematic diagram for building additional cables for control PA, antennas switches etc.
Warning! Software for each device is different! Double-check your device before downloading!
ExpertSDR2 x64 v.1.2.0_SunSDR2_PRO
Linux x64 (created by Ubuntu 16.04)
Firmware v. 41.8 dd:02-11-16
Firmware v. 41.8 dd:02-11-16