Digital tuner for space-constrained applications
ProductJuly 14, 2015
With a frequency range of 2 to 6,200 MHz, the Polaris SI-9150/D4 multichannel wideband digital tuner from DRS Technologies can intercept a wide range of signals of interest, providing a wideband 85 MHz digitized bandpass from each of its up to four channels.
With a frequency range of 2 to 6,200 MHz, the Polaris SI-9150/D4 multichannel wideband digital tuner from DRS Technologies can intercept a wide range of signals of interest, providing a wideband 85 MHz digitized bandpass from each of its up to four channels. Its small size (3 by 5 by 2.51 inches), power consumption of 30 W (max.), and ruggedized construction are aimed at a range of manportable, vehicle-mounted, airborne, shipboard, and unmanned aerial vehicle (UAV) platforms.
The SI-9150/D4 four-channel tuner can operate its wideband channels independently, providing 340 MHz of instantaneous coverage or phase-coherently, which is applicable for direction-finding or beamforming applications. Phase-coherent channel operations enable a designated master channel to share its local oscillator signals with one, two, or three slave channels. Amplitude tracking measures less than ±0.3 dB per 5 °C and less than ±0.1 dB per hour, while phase tracking between RF channels measures less than ±2.0 degrees per 5 °C and less than ±2.0 degrees per hour. The SI-9150/D4 features dual 10 Gbps Ethernet interfaces for streaming time-stamped VITA-49 IF data packets at full rate or user-selectable fractional decimation rates of selected bandwidth, which enables users to focus on specific spectrums of interest.
