Designed for sonobuoy telemetry operation Top-performance SDR with direct sampling architecture Digital down-conversion Excellent sensitivity, selectivity, phase noise and dynamic range Operating in the DIFAR sonobuoy 136 to 173.5 MHz frequency range Monitoring all 99 sonobuoy channels in the real time Processing up to 32 channels in parallel Up to 32 channels can be also be broadcast as RTP streams Audio recorder USB 3 data interface Excellent frequency stability (0.2 ppm) Selectable low-noise preamplifier Self-diagnostics with BIT and thermal managementThe WiNRADiO WR-G66WSBe is a top-performance, direct-sampling, low-power, software-defined receiver, designed for sonobuoy telemetry operation, covering the entire sonobuoy frequency range without the need for hardware re-tuning. All 99 sonobuoy channels are monitored simultaneously. Thanks to SDR architecture, the channels are processed instantly in software.
The receiver's hardware offers extremely high dynamic range, high linearity and excellent sensitivity. The input is protected against voltage spikes and excessive power.
The receiver contains self-diagnostics functionality with BIT (Built In Test) and thermal management to prevent damage if environment conditions change out of operational specs.
The WR-G66WSBe receiver is supplied with Windows based application software. A programmers' API are available upon request, suitable for integration in custom designed sonobuoy systems.
The software shows a graphical representation of the receiver (a virtual control panel), making it possible to observe the status of all 99 sonobouy channels simultaneously. The selected channel can be monitored, and the real-time spectrum of the demodulated signal observed.
The audio parameters can be adjusted for the output sound (volume, audio-gain), played on WiNRADiO Digital Bridge™ Virtual Sound Card, and as well recorded to an audio file. The receiver's sensitivity/immunity can be optimized by use of the attenuator and preamplifier.
The software provides an option for distribution of the demodulated audio for up to 32 channels over a computer network using RTP to multiple destinations.
(Click on panel to enlarge.)
(Click on panel to enlarge.)
Alternative versions of this receiver exist in different form factors and with different interface types. We also offer extended operating temperature and mechanical mounting methods.
| Type | Direct-sampling, digitally down-converting software-defined receiver |
| Frequency range | 136 MHz to 173.5 MHz, 99 channels, 375 kHz channel spacing |
| Demodulation bandwidth | 250 kHz |
| Mode | WFM |
| Image rejection | >80 dB |
| P1dB | -7 dBm (Preamp OFF) -17 dBm (Preamp ON) |
| IP3 | 21 dBm (Preamp OFF) 7 dBm (Preamp ON) |
| Max. input processed level | +10 dBm |
| Input damage level | +34 dBm |
| Attenuator | 0-21 dB, adjustable in 3 dB steps |
| SFDR | 101 dB typ. (Preamp OFF) 97 dB typ. (Preamp ON) |
| Noise Figure | 14 dB typ. (Preamp OFF) 6 dB typ. (Preamp ON) |
| MDS | -130 dBm typ., @ 150 MHz, 500 Hz BW (Preamp OFF) -138 dBm typ., @ 150 MHz, 500 Hz BW (Preamp ON) |
| LO Phase noise | -145 dBc/Hz @ 10 kHz |
| Internal spurious | below -110 dBm |
| RSSI accuracy | 2 dB (for input signal range from noise floor to +7 dBm) |
| RSSI sensitivity | -140 dBm |
| ADC | 16 bit, 200 MSPS |
| Tuning accuracy | 0.2 ppm @ 25 °C |
| Tuning stability | 0.2 ppm (0 to 50 °C) |
| Antenna inputs | 50 ohm (SMA connectors) |
| Data Interface | USB 3.0 |
| Data output | Demodulated audio 64 kHz sampling rate 32-bit float mono digitized I&Q signal via API,
or RTP stream. |
| Self-diagnostics | BIT (Built-In test) of the signal and processing path Thermal management - temperature monitoring and logging, auto switch off by overheat |
| Power supply | 10 W max (12 V/800 mA) |
| Operating temperature | 0 to 55 °C |
| Humidity | 20 - 90% non-condensing |
| Dimensions | Length: 166 mm (6.5") Width: 97 mm (3.8") Height: 59 mm (2.3") |
| Weight | 811 g (28.6 oz) |
Specifications are subject to change without notice due to continuous product development & improvement.
