RF Wideband Downconverters / Receivers

These RF downconverter models, featuring breakthrough frequency and bandwidth coverage for their size and cost, are available with two optional selectable bandwidth modes, covering three frequency ranges from 9 kHz to 8 GHz, 18 GHz, or 27 GHz.

Model Frequency
Coverage
Option 1
Bandwidth
Option 2
Bandwidth
DCA08G 9 kHz
to
8 GHz
100 MHz @ 0 Hz IF,
  40 MHz @ 35 MHz IF
  10 MHz @ 35 MHz IF
160 MHz @ 0 Hz IF,
  80 MHz @ 55 MHz IF
  10 MHz @ 35 MHz IF
DCA18G 9 kHz
to
18 GHz
100 MHz @ 0 Hz IF,
  40 MHz @ 35 MHz IF
  10 MHz @ 35 MHz IF
160 MHz @ 0 Hz IF,
  80 MHz @ 55 MHz IF
  10 MHz @ 35 MHz IF
DCA27G 9 kHz
to
27 GHz
100 MHz @ 0 Hz IF,
  40 MHz @ 35 MHz IF
  10 MHz @ 35 MHz IF
160 MHz @ 0 Hz IF,
  80 MHz @ 55 MHz IF
  10 MHz @ 35 MHz IF
Wideband Downconverters

WDC Data Sheet

Supporting Software

Prices Start at: $16,105
for Downconverter + Digitizer

Request Quote

The downconverters feature bandwidths of 100 MHz (Option 1) or 160 MHz (Option 2) direct conversion (centered at 0 Hz IF) I and Q analog outputs. These wideband versions can be software configured for super-heterodyne mode with a bandwidth of either 40 MHz or 10 MHz (Option 1) on a single IF output centered at 35 MHz IF, or with a bandwidth of either 80 MHz (Option 2) on a single IF output centered at 55 MHz IF.

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 both super-heterodyne and direct conversion technologies that are software selectable. The front-end processing blocks utilize up to 21 preselect filters to mitigate input-related spurs and image responses.

The downconverter models combined with GaGe high-speed digitizers allow for complete real-time signal recording and analysis systems covering frequencies up to 27 GHz. These solutions greatly extend the digitizer's frequency range allowing those developing applications in R&D, Manufacturing Test, and Field Service a high performance lower cost platform for complex wideband RF and microwave signal analysis.

Downconverter Option 1 bandwidth modes of 100 MHz, 40 MHz, and 10 MHz are ideally suited for use with GaGe 16-bit resolution Razor Express 16XX PCIe Digitizer at up to 200 MS/s or RazorMax at up to 500 MS/s or 1 GS/s for real-time gap free signal recording at 100 MHz bandwidth.

Downconverter Option 2 bandwidth modes of 160 MHz, 80 MHz, and 10 MHz are ideally suited for use with either the GaGe 16-bit resolution RazorMax Express PCIe Digitizer at up to 500 MS/s or 1 GS/s or the 12-bit resolution EON Express PCIe Digitizer at up to 3 GS/s for real-time gap free signal recording at 160 MHz bandwidth.

10 MHz reference inputs and outputs on both the GaGe digitizers and downconverter units provide a single frequency reference for synchronized operation for multiple systems.

The large onboard FIFO memory of the GaGe digitizers allow for real-time streaming of I and Q baseband signals at up to 1.6 GB/s (Razor Express) or 5 GB/s (RazorMax Express or EON Express) over PCI Express to PC memory for post processing, display, and storage.

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/C# and LabVIEW.

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.

SpectraScopeRT is a Windows based spectrum analyzer application that requires no programming and allows for integrated operational control of both the downconverter receiver and the digitizer for signal capture, analysis, and recordings. SpectraViewRT is used to conduct playback of previous signal recordings to the display monitor for analysis.

Wideband Downconverter Digitizer Systems

Wideband Downconverter: Front View Wideband Downconverter: Rear View

Features

  • 9 kHz – 27 GHz Frequency Coverage
  • Option 1 for 3 Selectable IF Bandwidths:
    100 MHz, 40 MHz, 10 MHz
  • Option 2 for 3 Selectable IF Bandwidths:
    160 MHz, 80 MHz, 10 MHz
  • 9, 18, or 21 Channel Switched Pre-Select Filter Bank
    & Pre-Amplifier for 18 and 27 GHz Models
  • Digitizer Resolution Options:
    16-bit up to 1 GS/s or 12-Bit up to 3 GS/s
  • Real-Time Data Capture to Digitizer Memory:
    up to 8 GB or 16 GB
  • Real-Time Data Capture to Data Storage System:
    up to 192 TB
  • Real-Time No Programming Spectrum Analyzer App – SpectraScopeRT
  • MATLAB Support for Control, Acquisition, and Signal Processing
  • Sustained Gap-Free PCIe Streaming to Host System:
    up to 5 GB/s
  • Multi-Channel Systems with 10 MHz In/Out Reference Synchronization
  • Software Application Development Support with
    CompuScope SDK for C/C#
    CompuScope SDK for MATLAB
    CompuScope SDK for LabVIEW

RF Wideband Signal Analyzer Recording System Block Diagram


SpectraScopeRT & SpectraViewRT – Real-Time Spectrum Analyzer & Playback Viewer

SpectraScopeRT is a Windows based spectrum analyzer application that requires no programming and allows for integrated operational control of both the downconverter receiver and the digitizer for signal capture, analysis, recordings.

SpectraScopeRT provides the ability to save established settings to a configuration file that can later be opened and applied, thus saving time from manually re-applying settings for repetitive configurations.

Display windows include support for scope cursors to navigate through the display and obtain measurements. Cursor Track Mode can be enabled to lock the position of the two placed cursors. When locked, the spacing between cursors remains constant as they are moved through the display of data.

The primary advantage of SpectraScopeRT is the ability to conduct real-time streaming signal recording to drive storage with provided monitoring capability to ensure the recording process is operating with expected signal data and without errors.

SpectraViewRT is a Windows based application that allows an operator to open/view and conduct playback of previous signal recordings to the display monitor for analysis. All of the various display types can be effectively utilized for playback operations. Playback operations utilize familiar navigation toolbar buttons for starting, stopping, stepping backwards and forwards, and moving back to start. A playback looping option allows looping from the end of file back to the beginning when the end of file is reached for continuous playback.

SpectraScopeRT showing Displays of:
  • Histogram
  • Persistence
  • Time Domain
  • Spectrogram
  • Composite Power
  • Spectrum
  • I Power Spectrum

SpectraScopeRT: Spectrum Analyzer Software

Ordering Information

Model
Number
Frequency
Coverage
Bandwidth
Modes
Pre-Select
Filter Bank
Order
Part Number
DCA08G100 9 kHz - 8 GHz   100 MHz @ Center IF 0 Hz,
    40 MHz @ Center IF 35 MHz
    10 MHz @ Center IF 35 MHz
9-Channel Preselector,
No Pre-Amplifier
DCA-008-001
DCA08G160 9 kHz - 8 GHz   160 MHz @ Center IF 0 Hz,
    80 MHz @ Center IF 55 MHz
    10 MHz @ Center IF 35 MHz
9-Channel Preselector,
No Pre-Amplifier
DCA-008-002
DCA18G100 9 kHz - 18 GHz   100 MHz @ Center IF 0 Hz,
    40 MHz @ Center IF 35 MHz
    10 MHz @ Center IF 35 MHz
18-Channel Preselector,
and Pre-Amplifier
DCA-018-001
DCA18G160 9 kHz - 18 GHz   160 MHz @ Center IF 0 Hz,
    80 MHz @ Center IF 55 MHz
    10 MHz @ Center IF 35 MHz
18-Channel Preselector,
and Pre-Amplifier
DCA-018-002
DCA27G100 9 kHz - 27 GHz   100 MHz @ Center IF 0 Hz,
    40 MHz @ Center IF 35 MHz
    10 MHz @ Center IF 35 MHz
21-Channel Preselector,
and Pre-Amplifier
DCA-027-001
DCA27G160 9 kHz - 27 GHz   160 MHz @ Center IF 0 Hz,
    80 MHz @ Center IF 55 MHz
    10 MHz @ Center IF 35 MHz
21-Channel Preselector,
and Pre-Amplifier
DCA-027-002
Accessory Options
19" rackmount shelf that supports two horizontally mounted downconverter units,
occupying 2U rackmount height space.
DCA-RCK-200
Software
Downconverter Software APIs for C/C++, MATLAB, and LabVIEW Included
SpectraScopeRT – Spectrum Analyzer Signal Recording Application DSD-SRT-A00
SpectraViewRT – Spectrum Analyzer Playback Viewer Application DSD-SVT-000