SI-8938 Wideband Multichannel Tuner Subsystem

A powerful, low-SWaP software definable radio development platform.


Airborne & Intelligence Systems - Signal Solutions

1 Milestone Center Ct.

Germantown, MD 20876


The SI-8938 multichannel tuner subsystem provides phase-coherent, wideband tuning of up to eight tuner channels across the 2 MHz to 6 GHz range. Based on proven radio frequency (RF) technology and an open backplane standard, the SI-8938 provides a powerful and low-SWaP SDR development platform that can easily be integrated and deployed in a range of missions.

The SI-9138 has state-of-the art dynamic range and phase noise performance, a maximum instantaneous bandwidth of 40 MHz and selectable analog bandwidths of 3, 10, 25 and 40 MHz. With a tuning setting time of 50 microseconds, multichannel phase coherency and time tagging of its digital IF output, the SI-9138 is a key to the SI-8938’s deployment in spectral search, direction finding and geo-location missions.  

SI-9138 3U VPX Wideband Tuner
Dual Channel Wideband 3U VPX Tuner

The SI-9138 tuner covers a 2 MHz - 6 GHz input frequency range with an instantaneous bandwidth of 40 MHz.

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SI-7138 Frequency Reference Module
3U VPX Frequency Reference Module

The frequency module distributes frequency and timing references to synchronize up to six dual-channel SI-9138 units to yield up to 12 fully coherent channels.

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SI-8938 Tuner Subsystem Data Sheet
SI-8938 Wideband Multichannel Tuner Subsystem

A complete subsystem combining an Extreme Engineering Solutions (X-ES) chassis, SI-9138 3U VPX Tuner and SI-7138 Frequency Reference Module.

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Signal Solutions Product Catalog
SIGINT Tuners & Receivers

DRS Signal Solutions products are suitable for commercial applications and adaptable for land, sea and air operations across a variety of platforms as well as tactical, man-portable capabilities.

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