DC402 Series

The DC402 is a compact positioner using both worm and belt drive components to offer high precision with low reflectivity for loads up to 40 pounds. This positioner is specifically designed for compact test ranges and enclosures for testing 5G, mmW and radar components and assemblies.

What’s Included?

The standard DC402 package features a 2-axis positioner, our powerful DAMS Antenna Measurement Studio, precision RF cables and rotary joints, all tools and documentation, plus DUT mounting hardware. Everything is backed by 3-year warranty.

  DC402 Series Datasheet

Educational discounts are available for students, teachers or staff of universities or technical schools.

Key Features & Functions

  • 2D & 3D Spherical Measurements (AZ over EL, EL over AZ, XYZ planes and more)
  • Far Field Parameters (gain, beamwidth, efficiency, directivity, polarization, isolation, and more)
  • OTA Measurements (TRP/TIS)
  • Phase Center Measurements
  • Spherical Near Field (optional)


  • Dual rotary joints
  • Multiple configuration options
  • Indexable mast offset up to 17” from center
  • Non-metallic DUT mounting axis
  • Ultra-high precision (up to 0.02º)
  • Ideal for most antennas up to 25 pounds

What's Included?

The standard D6050 package features:

  • 2-axis positioner
  • DAMS Antenna Measurement Studio
  • Precision RF cables
  • Precision dual rotary joints
  • DUT mounting hardware
  • Tools and documentation
  • 3-year warranty


›  Dimensions

Footprint:12” x 12” (304 mm x 304 mm)
Total Height:22.5” (571.5 mm)
Clearance Radius:18” (914 mm) clearance radius required for full 360º rotation
Total Weight:42 lbs (19 kg)



›  Turntable (theta)
Frequency Ranges (GHz):Coax: DC to 6, 18, 40, 50, or 67 GHz
mmW: 50-75 (V-Band), 60-90 (E-Band) or 75-110 (W-Band) GHz
Resolution:0.02º full step
0.00125º microstep
Drivetrain:3.0A/phase bipolar stepper motor with worm drive
Holding Torque:25 ft-lb
Movement Range:360º continuous or indexed
Position Feedback:800-line encoder
Limits:Home & Limit (hardware & software)
Weight (positioner only):16 lbs (7.27 kg)
Positioner Max Speed:24º per second
AUT Mounting Options: ¹3/8”-16 or M6 4-hole pattern for general mounting
Composition:Acrylic turntable with aluminum base
Weight Capacity:100 lbs (45 kg)
RF Rotary Joint:Optional (SMA, 2.92 mm, 2.4 mm, 1.85 mm or waveguide)


›  Gimbal (phi)
Frequency Ranges:Coax: DC to 6, 18, 40, 50, or 67 GHz
mmW: 50-75 (V-Band), 60-90 (E-Band) or 75-110 (W-Band) GHz
Resolution:0.05º full step
0.00250º microstep
Drivetrain:2.0A/phase bipolar stepper motor with belt drive
Holding Torque:20 ft-lb
Movement Range:360º continuous or indexed
Position Feedback:800-line Encoder
Limits:Home (hardware & software)
Weight (gimbal only):26 lbs (11.7 kg)
Gimbal Max Speed:24º per second
AUT Mounting Options: ¹3.625” (92 mm) diameter PVC mounting plate with 10-32 hole array
Composition:Delrin, ABS, PLA+, fiberglass
Weight Capacity:40 lbs (18 kg)
RF Rotary Joint:Optional (SMA, 2.92 mm, 2.4 mm, 1.85 mm or waveguide)

¹ = Custom mounting solutions available upon request


Electrical & Communications

Controller type:3 axis microprocessor based controller
Resolution:Full step through 1/32 microstep
Motor Current:3.125A per motor phase max
Cooling:Dual 40mm 24V fans
Motor Connector:M12 axial 5-pin connector + 5-pin encoder connector
Communication Interface:DB9 RS232 serial port with external USB adapter
Communication cable length:1 meter
Input Voltage:24VDC 3A
Power Supply (included):24VDC 5A - 110/220v input
Motor cable length:1 meter

Standard Models

Unless otherwise specified, all standard model packages include the positioner, software, all RF components, AUT mounting hardware, and tools and documentation.

DC402-00No RF Components
DC402-066 GHz SMA RF Components
DC402-1818 GHz SMA RF Components
DC402-4040 GHz 2.92 mm RF Components
DC402-5050 GHz 2.4 mm RF Components
DC402-6767 GHz 1.85 mm RF Components
DC402-7550 to 75 GHz mmW V-Band RF Components
DC402-9060 to 90 GHz mmW E-Band RF Components
DC402-11075 to 110 GHz mmW W-Band RF Components


DPA-PDKDAMS Platform Development Kit
OPT-SMASoftware maintenance agreement



DEPC-DPre-configured PC (desktop)
DEPC-LPre-configured PC (laptop)
DE-SIMDAMS Antenna & Network Simulator software add-on
DPA-SW-N2FSpherical nearfield processing
DPA-AUTOPOL18 GHz SPDT RF switch auto-polarizer with cables/adapters
DPA-AUTOPOL-4040 GHz SPDT RF switch auto-polarizer with cables/adapters
DE-05xxBroadband reference horn 500 MHz to 18, 26, 30 or 40 GHz
DE-07xxBroadband reference horn 700 MHz to 18, 26, 30 or 40 GHz

Part Drawings

None available for this product at this time.


If you’re looking for something you cannot find, please contact us.

[icon icon=”fa fa-handshake-o” position=”icon-left” icon_size=”50″ title=”Customer Support”]Diamond Engineering takes great pride in providing top-notch customer and technical support.  If you are having any issues with your system, we welcome you contact us directly.  We can walk you through or suggest solutions to any issues you may have.

Please don’t hesitate to contact us.[/icon]

[icon icon=”fa fa-book” position=”icon-left” icon_size=”50″ title=”Microwave Library”]If you have not already reviewed the materials in the Microwave Library, we encourage you to.  There you will find numerous application notes detailing how to accomplish many types of tasks.

To visit the Microwave Library, click here.[/icon]

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