The WiNRADiO WR-G315i is a high-performance VHF/UHF receiver on a PCI card, covering a wide frequency range from 9 kHz to 1800 MHz (extendable to 8599 MHz). It is designed for various applications, including government, military, security, surveillance, broadcast monitoring, industrial, and consumer use. The receiver's software-defined architecture offers flexibility, a respectable dynamic range, and high sensitivity. It has features like a calibrated S-meter, spectrum analyzers, and more. The package includes the receiver card, Windows-based software, a start-up antenna, and a user's manual. The receiver can be controlled by a PC, offering multi-channel monitoring capabilities. With its onboard DSP, the receiver is entirely software-defined, allowing for easy demodulation or decoding modes to be added easily. The software offers advanced features like scanning, squelch, tuning options, and a real-time spectrum analyzer. Additional features include a recorder, a wide-band spectrum analyzer, test and measurement functions, and a research and education tool. The receiver also has a Client/Server Option for remote control. The standard package includes the receiver card, application software, user's manual, start-up antenna, audio lead, and BNC-to-SMA adapter. System requirements include a PC with a 500 MHz Pentium CPU or faster, a free PCI slot, and Windows XP, Vista, Windows 7, or 8. The wide-FM demodulator option is a factory-installed option for wide-band FM demodulation capability.

The receiver type is a DSP-based SDR with a DDS-based dual-conversion superheterodyne front end. It operates within a frequency range of 9 kHz to 1800 MHz, extendable to 3500 or 8599 MHz with an optional AMFE unit, excluding cellular radiotelephone frequencies as required by law. The tuning resolution is 1 Hz, supporting various modes including AM, AMS, LSB, USB, DSB, ISB, CW, FM, and wide-FM with an optional demodulator. It offers image rejection ranging from 60 dB to 50 dB across different frequency ranges, IP3 of 30 dBm at 20 kHz, spurious-free dynamic range of 90 dB, MDS of -135 dBm, and phase noise of -148 dBc/Hz at 100 kHz. The internal spurious is typically less than the equivalent antenna input of -105 dBm, with RSSI accuracy of 2 dB, RSSI sensitivity of -137 dBm, and adjustable bandwidth from 50 to 15000 Hz in 1 Hz steps (230 kHz with WFM option only). The scanning speed is 50 channels per second, and sensitivity varies depending on the mode and frequency range, with intermediate frequencies at 109.65 MHz and 16 kHz and a 2 x 4-pole 20 kHz crystal roofing filter. It offers a tuning accuracy of 1 ppm, frequency stability of 0.5 ppm, a 50-ohm SMA connector for antenna input, a maximum input level of +18 dBm, 600-ohm line audio output, and a 2/3 length PCI card form factor compliant with PCI 2.2 standards. The dimensions are 195 mm in length, 99 mm in height, and 19 mm in thickness, weighing 330 g.