SunSDR2PRO
HF and VHF in a case that weighs a kilo and a half.

01 / 04 — Вид спереди
Direct sampling on receive (DDC) and direct digital synthesis on transmit (DUC). 15 W (up to 20) on HF, 15 W on 6 m and up to 8 W on 2 m, in a 185 × 165 × 50 mm case with a one-piece milled heatsink.
- HF
- 15W
- VHF
- 7W
- ADC
- 16bit
- Weight
- 1.5kg
Features
Contests and SO2R
Two independent software receivers, each with a sub-receiver: two HF bands at once and split in DX mode. With ExtCtrl the compact unit becomes a complete contest position.
Home shack and field
130 dB dynamic range on HF and 114 dB on VHF, 0.2 µV sensitivity and a +10 dB preamp keep you confident on a crowded band.
Field power
10–16 V on receive and 12–16 V on transmit: a switching supply or a battery will do.
2 m VHF and transverters
A built-in +22 dB VHF LNA and transverter support. With an external amplifier the PRO runs the whole set-up, and the kit stays portable.
Use Cases
- 01
Contesting
Two independent receivers allow SO2R operation and hunting multipliers on the second VFO.
- 02
DX Hunting
Wide panorama and instant split frequency jump give an edge in dense pileups.
- 03
Remote Operation
Streaming audio and IQ over the network enables full remote operation worldwide.
- 04
Digital Modes (FT8/FT4)
Direct integration with WSJT-X and loggers via TCI protocol with no virtual cables.
ExpertSDR3, TCI and ERS
Free ExpertSDR3 with free updates. The open TCI protocol connects loggers, skimmers and digital-mode programs without virtual COM ports or audio cables; programs without TCI use the RadioSync bridge (CAT, OmniRig). Expert Remote System (ERS) is included: control from a browser or ExpertSDR3, directly or through the ExpertCloud service.
About the software- ExpertSDR3Free software for operating on the air
- TCIAn open protocol for loggers, skimmers and digital modes
- ERSRemote operation from a browser or ExpertSDR3
Hardware headroom
ALC*
Input for external power amplifiers, controlled over ExtCtrl.
Full Duplex*
Full-duplex operation.
* The hardware supports these functions; software support comes in ExpertSDR3 updates.
SpecificationsSunSDR2PRO
Receiver Characteristics
| RF ADC, resolution | 16 bit |
|---|---|
| RF ADC, sampling rate | 160 MHz |
| ADC type | LTC2209 |
| RX Frequency range | 0.1...65; 95...155 MHz |
| Sub-receivers | 2 pcs |
| Sample rate | 39; 78; 156; 312 @ 24 kHz |
See all specifications for details

Transmitter Characteristics
| RF DAC, resolution | 14 bit |
|---|---|
| RF DAC, sampling rate | 640 MHz |
| TX Frequency range | 160-6; 2 M |
| Output power on HF | 15 (up to 20) W |
| Output power on 6M | 15 W |
| Output power on VHF | 7 (up to 8) W |
See all specifications for details

Specifications
| Local oscillator TCXO, accuracy | 20 +/- 0.5 ppm |
|---|---|
| External 10 MHz oscillator input | Yes |
| Built-in audio codec / Dynamic Range | 24 bit/dB |
| RF input/output | 2 HF, 1 VHF, ADC IN, DAC OUT |
| PC interface | LAN 100 Mbps Mbit |
| DC voltage range in RX/TX | 10...16 / 12...16 V |
See all specifications for details














