WiNRADiO G31DDC & G33DDC HF RX
WiNRADiO WR-G31DDC and G33-DDC are a high-performance, low-cost, direct-sampling, software-defined, shortwave receiver with a frequency range from 9 kHz to 50 MHz. It includes a real-time 50 MHz-wide spectrum analyzer and 2 MHz (G31DDC) or 4 MHz (G33DDC) wide instantaneous bandwidth available for recording, demodulation and further digital processing.
The receiver's superior performance results from its innovative, direct-sampling, digital down-converter architecture along with the use of leading-edge components and design concepts. These all result in a very high IP3, wide dynamic range, excellent sensitivity, selectivity and tuning accuracy. These key features create a receiver in a class of its own, with wide application potential, at a very affordable price.
- go2signals support
- High sensitivity
- Audio and DDC recorder
- Networking version of application software available
- USB 2.0 interface
- 2 (G31DDC) or 4 MHz (G33DDC) recording and processing bandwidt
- 50 MHz-wide, real-time spectrum analyzer
Technical data
| Feature | G31DDC | G33DDC |
|---|---|---|
| Receiver type | Direct-sampling, digitally down-converting software-defined receiver | Direct-sampling, digitally down-converting software-defined receiver |
| Frequency range | 9 kHz to 49.995 MHz | 9 kHz to 49.995 MHz |
| Tuning resolution | 1 Hz | 1 Hz |
| Mode | AM, AMS, CW, LSB, USB, FMN, FSK, UDM (user-defineable mode), DRM (optional) |
AM, AMS, CW, LSB, USB, FMN, FSK, UDM (user-defineable mode), DRM (optional) |
| Image Rejection | 90 dB typ. | 100 dB |
| IP3 | +31 dBm typ. | +31 dBm (preamp off) +21 dBm (preamp on) C8 |
| Attenuator | 0 - 21 dB, adjustable in 3 dB steps | 0 - 21 dB, adjustable in 3 dB steps |
| SFDR | 107 dB typ. | 107 dB min. (preamp off) 103 dB min. (preamp on |
| Noise figure | 14 dB | 14 dB (preamp off) 10 dB (preamp on) |
| MDS | -130 dBm #10 MHz, 500 Hz BW | -130 dBm @ 10 MHz, 500 Hz BW (preamp off) -134 dBm @ 10 MHz, 500 Hz BW (preamp on) |
| Phase noise | -145 dBc/Hz @ 10 kHz | -145 dBc/Hz @ 10 kHz |
| RSSI accuracy | 2 dB | 2 dB |
| RSSI sensitivity | -140 dBm | -140 dBm |
| Processing and recording bandwidth (DDC bandwidth) |
20 kHz - 2 MHz (selectable in 21 steps) | 20 kHz - 4 MHz (selectable in 24 steps) |
| Demodulation bandwidth (selectivity) |
10 Hz - 62.5 kHz (selectable in 1 Hz steps) | 1 Hz - 62.5 kHz (selectable in 1 Hz steps) |
| Spectrum analyzer | Input spectrum/waterfall, 30 or 50 MHz wide, 1.5 kHz resolution bandwidth DDC spectrum/waterfall, max 2 MHz wide, 1 Hz resolution bandwidth Channel spectrum, max 62.5 kHz wide, 1 Hz resolution bandwidth Demodulated audio, 16 kHz wide, 1 Hz resolution bandwidth |
Input spectrum/waterfall, 30 or 50 MHz wide, 1.5 kHz resolution bandwidth DDC spectrum/waterfall, max 4 MHz wide, 1 Hz resolution bandwidth Channel spectrum, max 62.5 kHz wide, 1 Hz resolution bandwidth Demodulated audio, 16 kHz wide, 1 Hz resolution bandwidth |
| ADC | 16 bit, 100 MSPS | 16 bit, 100 MSPS |
| Sensitivity (Typ. @ 10 MHz) |
-101 dBm @ AM: 30% mod., 10 dB S+N/N -116 dBm @ SSB: 10 dB S+N/N -123 dBm @ CW: 10 dB S+N/N -112 dBm @ FM: 3 kHz dev., 12 dB SINAD Note: Below 200 kHz, the sensitivity gradually drops. |
-106 dBm @ AM: 30% mod., 10 dB S+N/N -121 dBm @ SSB: 10 dB S+N/N -127 dBm @ CW: 10 dB S+N/N -117 dBm @ FM: 3 kHz dev., 12 dB SINAD Note: Below 200 kHz, the sensitivity gradually drops. |
| Tuning accuracy | 0.5 ppm @ 25 ° C | 0.5 ppm @ 25 ° C |
| Tuning stability | 2.5 ppm (0 to 50° C) | 0.5 ppm (0 to 50° C) |
| MW filter | Cut-off frequency 1.8 MHz @ -3 dB Attenuation 60 dB min @ 0.5 MHz |
Cut-off frequency 1.8 MHz @ -3 dB Attenuation 60 dB min @ 0.5 MHz |
| Preselection filters | 119 filters available in automatic or manual mode (14 high pass, 14 low pass and 91 bandpass) + bypass | |
| Antenna input | 50 ohm (SMA connector) | 50 ohm (SMA connector) |
| Output | 24-bit Digitized IQ signal over USB interface | 24-bit Digitized IQ signal over USB interface |
| Interface | USB 2.0 High speed | USB 2.0 High speed |
| Power supply | 11-13 V DC @ 500 mA typ. 11-13 V DC @ 45 mA typ. (power save) |
11-13 V DC @ 510 mA typ. (preamp off) 11-13 V DC @ 620 mA typ. (preamp on) 11-13 V DC @ 55 mA typ. (power save) |
| Operating temperature | 0°C to 50°C | 0°C to 50°C |
