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EMI, EMC, MIL-STD & Tempest Receivers


Dynamic Sciences International - EMC, EMI Military, Surveillance and Tempest Receivers

Manufactured & Serviced in Woodlawn Hills, CA USA

EMI, Surveillance, Military and TEMPEST Receivers


DSII is a dynamic and innovative company specializing in the design and manufacture of sophisticated automated test and measurement systems. DSII's test and measurement systems are used by leading companies, governments and defense industries, to provide data security for classified and other secured data processing, computer and computer networks, modems, facsimile machines, etc. The products are suitable for testing wire and wireless data communication and processing systems, operating at frequencies of current high speed computers and microwave communication, such as K&X Band.


 Receiver Index

AM / FM Receiver

EMI Receiver Commercial & Military

Portable Antenna Kit

Raster Generator

TEMPEST Receiver


 EMI Test Measurement Receiver System

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DSI 600 Series


Model 600-02

20 Hz to 2.0 GHz


Model 600-04

20 Hz to 4.0 GHz


Model 600-12

20 Hz to 12.5 GHz


Model 600-27

20 Hz to 26.5 GHz


Model 600-40

20 Hz to 40 GHz



System includes the following:

CISPR, EN, ANSI, FCC Test Plan Generator Software
MIL-461 Standard Software Test and Auto Test Generator
Antenna Mast and Turntable Controller Software
Operators and Users Manual
One Year Warranty and Calibration

DSI-600 receiver is:

 Fully Compliant with CISPR 16-1
 Fully Compliant with MIL-STD 461E/462G

Compatible in the following required test standards:

 CISPR 25, Second Edition 2002-08
 CISPR 12, Fourth Edition 1997-05









The DSI 600 EMI Test Measurement Receiver System is a step into the future of fully compliant test capabilities integrated into a powerful receiver technology coupled with the computational strength of the on board computer which facilitates high speed data acquisition, an enhanced spectral display module, and SCPI interoperability interface all complemented by DSII’s EMIT software. IF/RF spectrum analysis & time domain capabilities provide an all-in-one multi-functional resource rapidly and accurately providing consolidated concise test results and reports.



Frequency Ranges of Operation
… to 2, 4, 12.5, 26.5 & 40 GHz
Receiver Measurement Accuracy
… state-of-the-art receiver technology, very low NF, 10dB typ. Sensitivity

EMIT Test Suites
… fully compliant to CISPR 16-1, FCC, ANSI, DO-160, EN, MIL-STD 461
Multiple detection modes
… peak, quasi peak, average, RMS
Powerful Embedded PC
… P3 processors to handle complex embedded algorithms
… integrated 8.5” TFT color screen
… intuitive user-friendly interface
… standard SCPI compliant operation
Test Preparation / Report Generation
… powerful integrated test plan module annotated results files/graphs for export
AC & DC Powered




Frequency Range

Noise Figure


20 Hz to 2 GHz

< 12 dB


20 Hz to 4 GHz

< 12 dB


20 Hz to 12.5 GHz

< 12 dB


20 Hz to 26.5 GHz

< 14 dB


20 Hz to 40 GHz

< 27 dB


Application Notes

      Cable Loss

      Frequency Tracking Measurements


      Pre-Amplification - Good or Bad?

      Third Order Intercept Point



 Surveillance & Monitoring Portable AM / FM Receivers

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Wide Range

 AM / FM Receivers





1 kHz to 1 GHz

Extendable to

100 Hz to 18 GHz

with converter





Frequency Range: 1 KHz to 1 GHz (100 Hz with LFE option) 
Noise Figure: 9 dB mid-range, 13 dB max 
Dynamic Range: Greater than 60 dB 
Tuning: Keypad input, tuning knob and tuning pushbuttons; selectable resolution; automatic scan 
Input Attenuator: 0-70 dB in 10 dB steps; Manual or automatic (auto-range) operation 
Gain: Single know optimally adjusts internal gains 
IF Bandwidths: 33 filters, 200 Hz to 200 MHz in modifies 1:2:5 sequence (plus 500 and 100 Hz with LFE option) 
Demodulation Modes: AM, CWQ and FM 
Video Output Modes: Linear, Log, Aux-video (with pulse-stretch and slide back) and Z axis 
Visual and Audible Alarms: Warn of incorrect operations and out-of-spec conditions 
Panel Displays: Separate LED displays for Frequency, Attenuation, Gain, Bandwidth and DVM (video level) 
Indicators: 30 LED mode/status lightbars, High-Low Power Line Warning: Power line condition indicated on front panel 
Low Weight and Small Size for Portability: 42 lbs., 5.25" x 17" x 22", 1.1 cu. ft. 
Carrying Handles: collapsible side handles facilitate carrying (rack mount kits available) 




 Raster Generator

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Separately controllable vertical and horizontal synchronization channels.

Dual frequency displays

Tuning knob, keypad and vernier control for accurate frequency setting

Z-axis output channel with gain, offset and invert controls

Precision frequency synthesizers with stable clock to facilitate capture of signals

Remote operation via IEEE-488 bus


 TEMPEST Receivers

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DSI-1550B TEMPEST Test System

100 Hz to 2 GHz


extendable to


 20 Hz to 40 GHz


 with converters

Sales Restricted to

 NATO Countries Only


The R-1550B TEMPEST Receiver includes everything you need to operate from a frequency range of 100 Hz to 2 GHz. With options, the frequency range may be extended as low as 20 Hz or as high as 40 GHz.


The DSI-1550B TEMPEST Test Receiver is a PC based automated receiving system that permits precision measurements, test and analysis associated with surveillance. TEMPEST or EMI/EMC. The operation provides the user with manual and automatic receiver functions, and user friendly software that gives the user straight forward access to control sophisticated data reduction algorithms and displays. The standard DSI-1550B configuration,that Dynamic Sciences offers is an extensive library of software and hardware accessories that will allow tailoring of a system to specific applications.


  • Selectable Tuning Resolutions: Use the arrow keys below the display to select the tuning digit. The selected digit blinks. Use the step key to perform
    manual step tuning. The step size is determined by the selected digit. The tuning knob also tunes at the selected digit. Frequency Resolution is 0.1 Hz from 100 Hz to 250 kHz; 1 Hz from 250 kHz to 15 MHz; and 100 Hz from 15
    MHz to 2 GHz.
  • Synthesizer Design: Synthesizer design provides you with programmable frequency control. Any frequency may be entered from the
    keypad with up to seven digit resolution.
  • AM/FM Detector Switch: It automatically selects audio source. Gain controls are provided for headphone use.
  • Auxiliary Video Output: For Z-axis display; provides a direct connection for video monitoring use.
  • Z-Axis Output: Provided on the rear panel for “rastering” of repetitive signals. Automatic remote mode selection is provided by the
    host computer.
  • Low Noise Figure: The nominal noise figure is 6 dB. The noise floor in a 100 Hz bandwidth is -41 dB&#956V. The noise floor in a 10 kHz bandwidth is -21 dB&#956V. There is 80 dB image rejection over the entire frequency range. The noise floor will improve by at least 6 dB&#956V when the R-1550A Receiver is configured in the DSI-1550B TEMPEST Test System.
  • Preselection Filters: There are nine bandpass filters that may be individually selected during tuning corresponding with the receiver band
    and the tuned frequency. Filter values are 200 MHz Low Pass, 200-350 MHz, 350-550 MHz, 550-750 MHz, 750-1000 MHz, 1100 MHz Low Pass, 1.0 GHz-1.3 GHz, 1.3 GHz-1.6 GHz, and 1.6 GHz-2.0 GHz.


R-1550A Receiver


100 Hz to 1 GHz


extendable to


 20 Hz to 40 GHz


 with converters





Sales Restricted to

 NATO Countries Only






The DSI-1550A operates from 100 Hz to 1 GHz (up to 40 GHz using the Microwave Down converter option). Extended low frequency of 20 Hz to 1 kHz using system software. The receiver automatically tunes the MDC and displays the tuned frequency. Extended low frequency provides additional bandwidths down to 1 Hz in the sweep mode.

Bandwidths of:

50 Hz, 100 Hz, 200 Hz, 500 Hz, 1 kHz, 2 kHz, 5 kHz, 10 kHz, 20 kHz, 50 kHz, 100 kHz, 200 kHz, 500 kHz, 1 MHz, 2 MHz, 5 MHz, 10 MHz, 20 MHz, 50 MHz, 100 MHz, 200 MHz

An expandable bandwidth set is available below 20 kHz which includes: 250 Hz, 300 Hz, 400 Hz, 640 Hz, 800 Hz, 1.3 kHz, 1.6 kHz, 2.5 kHz, 3 kHz, 4 kHz, 6.4 kHz, 8 kHz, 9 kHz, 13 kHz, 16 kHz. Low Frequency Bandwidths: 1 Hz, 2 Hz, 5 Hz, 10 Hz, 20 Hz.

Arrow keys below the display select the tuning digit. The selected digit blinks. Tuning may be done in a manual step by selecting the step key. The step size is determined by the selected digit. The tuning knob also tunes at the selected digit. Frequency Resolution of: 0.1 Hz from 100 Hz to 250 kHz, 1 Hz from 250 kHz to 15 MHz, and 100 Hz from 15 MHz to 1 GHz.

SYNTHESIZER DESIGN employed to provide programmable frequency control. Any frequency may be entered from the keypad with up to seven-digit resolution.
AM/FM DETECTOR SWITCH automatically selects audio source; gain controls provided for headphone use.
AUXILIARY VIDEO output for z-axis display provides a direct connection for video monitoring.

Z-AXIS OUTPUT is provided on the rear panel for "Rastering" of repetitive signals. Automatic remote mode selection by the host computer.


Nominal noise figure of 6 dB.

Noise floor in a 100 Hz bandwidth of -37 uV.

Noise floor in a 10 kHz bandwidth of -17 uV.

80 dB image rejection over the entire frequency range.

PRESELECTION FILTERS: Six bandpass filters are individually selected during tuning corresponding with the receiver band and tuned frequency.

Filter values are: 200 MHz Low Pass, 200-350 MHz, 350-550 MHz, 550-750 MHz,
750-1000 MHz and 1100 MHz Low Pass.



R-1580A Microwave Downconverter





  • The DSII model R-1580A Microwave Downconverter extends the coverage of the R-1550A, or other DSII wide range receivers, to 22GHz.
  • The Downconverter features a simplified human interface which permits direct tuning to desired frequencies without requiring operator interpretation. When connected to the R-1550A, the receiver tuning display is extended to 22GHz, and tuning, port selection, gain adjustment and attenuation settings are all accomplished with receiver controls and displays, eliminating the need for adjusting the controls of both units.
  • The R-1580A is fully compatible with DSII automated measurement systems, such as the DSI-1550A. When the Downconverter is connected, the extended frequency range is seamlessly integrated with the system sweep and interactive displays.
  • The R-1580 Downconverter utilizes a multiple conversion design with preselection filtering, low phase-noise synthesizers, and high-quality components to provide superior signal capture capability. The built-in microprocessor controls operations and provides display of frequency and status. Communications with external equipment is provided via the IEEE-488 bus.


 Portable Antenna Kit

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Portable Antenna Kit





100 Hz to 1.0 GHz





The DSI Model R-1150-10A Portable Antenna Kit contains eight antenna to support electronic field strength measurements from 100MHz to 1GHz and magnetic field strength measurements from 100 Hz to 30 MHz. The antennas are suitable for shielded enclosure or general field use. The Kit contained in a luggage type fitted transit case.

The Antenna Kit includes passive Biconical and log periodic antennas as well as six active antennas. The active antennas consist of four H-field antennas which connect to a Base Unit containing preamplified filter and control devices.

A Control Unit supplies power to the Base Unit and permits selection of the filters. Rechargeable batteries in the Control Unit permit up to 10 hours of operation away from an AC power source.

Detailed antenna factors and sensitivity charts are supplied with the Antenna Kit.


DSI Website

  Last Updated: June 13, 2019
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