WINRADIO HF Receiver

WINRADIO HF Receiver

The award-winning WiNRADiO WR-G31DDC 'EXCALIBUR' is 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-wide instantaneous bandwidth available for recording, demodulation and further digital processing.

WiNRADiO WR-G31DDC receiver

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.

Features

9 kHz to 49.995 MHz continuous frequency range
Direct sampling
Digital down-conversion
16-bit 100 MSPS A/D conversion
50 MHz-wide, real-time spectrum analyzer
2 MHz recording and processing bandwidth
Three parallel demodulator channels
Waterfall display functions
Audio spectrum analyzer
Audio and IF recording and playback
Recording with pre-buffering
EIBI, HFCC and user frequency databases support
Very high IP3 (+31 dBm)
Excellent sensitivity (0.35 µV SSB, 0.16 µV CW)
Excellent dynamic range (107 dB typ.)
Selectable medium-wave filter
USB 2.0 interface

The receiver's robust front-end is equipped with an ultra-high-linearity amplifier which results in exceptional strong-signal performance. An advanced dithering technique eliminates spurious signals without significantly increasing the receiver's noise floor. The superior 16-bit 100 MSPS analog-to-digital converter provides exceptional performance over an extremely wide range of signals.

The entire 2 MHz DDC (digitally-down-converted) bandwidth is available for recording and demodulation. Three demodulators allow the simultaneous reception of three signal frequencies within the 2 MHz bandwidth.

The digital down-converter provides 21 selectable output bandwidths ranging from 20 kHz to 2 MHz. The receiver's selectivity can be adjusted with 1 Hz resolution. The bandpass audio filter's low and high cut-off frequencies are graphically adjustable, as is the notch filter and noise blanker.

The parameters of all three independent channels can be set separately, allowing each to be recorded simultaneously and independently. Recording and playback are also provided at the output of the digital down-converter, where an entire 2 MHz spectrum band can be recorded for later demodulation. Pre-buffering prevents signal loss at the start of a transmission.

A flexible scheduler function allows unattended recording of each channel at specified dates and times, and the built-in support for HFCC, EIBI and user-defined frequency databases ensures effortless storage and maintenance of frequencies.

The software-defined architecture allows easy software upgrades for demodulation and decoding requirements. Component variations and aging are greatly diminished in a software-defined receiver, assuring long-term premium performance.

Developer support is also provided, making it possible for third-party programmers to develop application software based on the Excalibur hardware plaform.

The standard WR-G31DDC package includes:

WR-G31DDC receiver

CD ROM with application software and user's guide

Low-noise switch-mode power supply

USB cable

BNC-to-SMA adapter

System requirements:

PC with 2 GHz dual core CPU or faster* One free USB 2.0 socket Windows XP, Vista, Windows 7, 8 or 10 * Depending on available CPU resources on a particular computer, the receiver may work with lower-specification CPUs, but this may result in somewhat reduced performance in terms of maximum achievable selectivity and DDC bandwidth.