SI-9138 Dual Channel Wideband 3U VPX Tuner

2 Channels, 20 MHz - 6 GHz Frequency Range, 40 MHz Bandwidth Tuner


Airborne & Intelligence Systems - Signal Solutions

1 Milestone Center Ct.

Germantown, MD 20876


The SI-9138 is a wideband VHF/UHF tuner covering a 2 MHz to 6 GHz input frequency range. The unit 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 key to the SI-8938’s deployment in spectral search, direction finding and geo-location missions.

The SI-9138 and SI-7138 work together to create the SI-8938 subsystem providing phase-coherent, wideband tuning of up to eight tuner channels across the 2 MHz to 6 GHz range. Based on proven RF technology and an open backplane standard, the SI-8938 provides a powerful and low-SWaP software-definable receiver development platform that can easily be integrated and deployed in a range of missions. 

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.

Learn more about the SI-7138

SI-8938 Wideband Multichannel Subsystem
A Wideband Multichannel Tuner Subystem

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

Learn more about the SI-8938

SI-9138 Tuner & SI-7138 Reference Module
SI-9138 Tuner & SI-7138 Reference Module

A high-performing tuner that offers multiple features in order to successfully perform in spectral search, direction finding and geo-location missions.

Download the data sheet

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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