Wideband Downconverters Turn key systems
Main Features

Signatec wideband downconverter product solutions feature breakthrough frequency and bandwidth coverage for their size and cost, and are available with three bandwidths covering two frequency ranges:

Model Frequency Coverage Bandwidth
DC8G10 100 kHz – 8 GHz 10 MHz 35 MHz IF)
DC8G100 100 kHz – 8 GHz 100 MHz (0 Hz IF), 40 MHz / 10 MHz (35 MHz IF)
DC20G100100 kHz – 20 GHz 100 MHz (0 Hz IF),40 MHz / 10 MHz (35 MHz IF)
The DC8G10 has a 10 MHz IF bandwidth centered at 35MHz, covers up to 8 GHz, and is primarily directed at digital radio applications.

The DC8G100 and DC20G100 cover up to 8 GHz and 20 GHz respectively, both with 100 MHz direct conversion (0 Hz IF) I and Q analog outputs. These wideband versions can be software configured for super heterodyne mode with a single IF output centered at 35 MHz IF and either 40 MHz or 10 MHz bandwidth.

These wideband products are engineered for analyzing wideband digital communications – cell phone standards 3G/4G/LTE, WiFi, or general Vector Signal Analysis (VSA) applications involving broadband signals.

The Downconverter RF front end is a unique architecture, consisting of super-heterodyne and direct conversion technologies. The direct-conversion receiver stage acts as a back-end for all but the directly digitized range of frequencies up to 50 MHz. This approach provides the major benefits of direct conversion receivers, namely wide bandwidth, but extends the frequency range using superheterodyne techniques to provide greater RF coverage.

All front end processing blocks utilize input anti-image filters, plus user selectable attenuation to optimize noise figure and spurious free dynamic range.

For manual control, testing and setup of the Ethernet connected Downconverters, programs are provided for network discovery, setting carrier frequency, RF / IF gain, filters, etc. Frequency domain signal analysis of the Downconverter baseband output signals is done with the DynamicSignals Spectrum Analyzer program, SpectraScopeRT, supporting integrated digitizer and downconverter control, zoom amplitude and frequency display, cursors, and waveform signal storage/printing.

The Digitizers and Downconverters have full control and data acquisition support via Mathworks MATLAB, with example programs furnished to facilitate rapid signal processing and modulation analysis program development. Additional software SDK and example programs are available for C and LabVIEW.

These solutions greatly extend the digitizers frequency range, and allow those developing applications in Surveillance, Signal Intelligence, Radar, EW, and R&D high performance, lower cost platforms for complex wideband RF and microwave signal analysis.

Portable or Rackmount 20 GHz Wideband Signal Recording Systems
Signatec PX14400D2 PCIe Digitizer solutions, with 14-bit resolution and real-time stream to disk support, allow easily configured turnkey signal recording solutions for signals up to 20 GHz.

The PX14400D2’s frequency synthesized clock allows for the ADC sampling rate to be set to virtually any value from 20 MHz to 400 MHz, for maximum sampling rate flexibility with 14-bit A/D resolution; and supports real-time sustained PCIe data streaming at up to 700 MS/s per card.

The PX14400D2 also supports a 2nd optional FPGA, with an open programming environment, where user provided programs can perform signal processing operations in real-time before data is stored. Standard FPGA processing features that are furnished for typical applications include DDC, FIR Filter, and FFT.

Signatec Digitizers include a complete Windows based Scope Application that provides a virtual oscilloscope and allows the operator to view or edit all digitizer hardware settings as well as record and display acquisition data.

Complete PX14400D2 Signal Recording Systems are furnished fully tested and fully integrated with high-speed real-time data recording RAID storage. These systems are specially designed to maximize the operations and the sustained data streaming transfer rates from Signatec Digitizers to the Embedded PC and Data Storage System (DSS) with either solid state or mechanical based enterprise storage drive arrays.

The DSS volume is configured by default as a single Windows NTFS drive volume. As a standard Windows recognized drive volume, all standard Windows operating system access and file operations may be performed on it.

Rugged portable systems are typically configured with solid state based drive arrays with support for up to 18 solid state drives (maximum volume of 8.64 TB) that provides up to 1.5 hours of continuous signal data recording at the maximum 14-bit 700 MSPS rate without missing any data.

Rackmount systems can be configured with solid state or mechanical based drive arrays with support for up to 48 drives (maximum volume of 192 TB) that provides up to 34 hours of continuous signal data recording at the maximum 14-bit 700 MSPS rate without missing any data.

100 kHz – 20 GHz Frequency Coverage
3 Selectable IF Bandwidths –
100 MHz, 40 MHz, 10 MHz
Real-Time Data Capture to High-Speed RAID Storage at up to 700 MS/s
14-Bit, 400 MS/s Digitizer Resolution
Real-Time Spectrum Analyzer Program,
SpectraScopeRT, No Programming Required
MATLAB Support for Control, Acquisition, and
Signal Processing
High Speed Gap-Free PCIe x8 Sustained Streaming to PC Memory at 1.4 GB/s
Anti-Image RF Filter Bank with Low Pass and High Pass Filters
Allows over 34 Hours of Real-Time Recording
Multi-Channel Systems with 10 MHz In/Out
View and Record Gap-Free Data with
No Programming Required
Software SDKs for C and LabVIEW

Wideband Downconverters data sheet

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