The WiNRADiO WR-G528e is a miniaturized, versatile, USB-interfaced high-performance receiver front-end with dual application capability.

A single WR-G528e module can be utilized as a compact, single-channel front-end suitable for fast signal intercept, acquisition and monitoring applications. When two identical modules are interconnected to share a common frequency reference (either internal or external), they can form a basis of a dual-channel phase-coherent direction-finding system with excellent phase and amplitude matching characteristics.

The WiNRADiO WR-G528e is designed to be a front-end of choice for demanding Software-Defined Radio (SDR) applications wherever an instantaneous IF bandwidth greater than 20 MHz, small size, low power and low cost are required. It can be deployed in fixed, land mobile, or airborne installations.

Features

 Input frequency range 0.01-3000 MHz
 Single or dual-channel phase-coherent applications
 IF output 70 MHz
 IF bandwidth 22 MHz
 Excellent phase and amplitude matching
 1 ppm frequency stability or 10 MHz external reference
 Small size and weight
 Low power consumption
 High dynamic range
 Fast tuning speed
 USB 2.0 and RS-232 interface

For frequencies above 30 MHz, the receiver is based on a double-conversion process, where the incoming frequency is down-converted to the output frequency 70 MHz, which is provided as a filtered output ready to be digitized. The IF paths are switchable by an internal relay in order to minimize images and spurious mixing products. Filters are specially selected to ensure flat phase response and a digitally controlled attenuator is employed in the front-end.

For frequencies 0.01 to 30 MHz, the amplified bypass output is available for a direct connection to a DSP back-end.

A dual-channel phase-coherent system based on two identical, interconnected WR-G528e modules features an excellent phase stability and flatness throughout the entire frequency range, with minimum amplitude and phase distortion, as well as minimum amplitude and phase mismatch between the two channels.