DAMS x250 Series

The DAMS x250 Series is our super heavy-duty multi-axis antenna measurement system suited for devices up to 250 (113.5 kg).

What’s Included?

The standard DAMS x250 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.

  DAMS x250 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
  • Ultra-high precision (up to 0.02º)
  • Ideal for most antennas up to 250 pounds (113.5 kg)

What's Included?

The standard DAMS x250 package features:

  • Dual-axis positioner
  • DAMS Antenna Measurement Studio
  • Precision RF cables
  • Precision rotary joint
  • DUT mounting hardware
  • Tools and documentation
  • 1-year warranty

Platform Operating Specifications

Frequency Ranges:DC to 6 GHz (DAMS 5250)
DC to 18 GHz (DAMS 6250)
DC to 40 GHz (DAMS 7250)
Platform Movement:Horizontal 1.8 degree precision stepper motor with low-noise belts
Up to .10º azimuth resolution
360º continuous azimuth range
± 90º elevation range at 0.1º per step
Drivetrain:Heavy-duty steel gear drive-train
Steel gear and worm, with ball and tapered roller bearings
Positioner Feedback:Precision potentiometer (DAMS 5250)
High accuracy resolver (DAMS 6250/7250)
Platform Max Speed:30 R.P.M. azimuth
120º per minute elevation
Platform Mounting:30” aluminum AUT thrust plate with 250 lbs. of payload capacity
Ultra heavy-duty tripod
Weight Capacity:250 lbs. maximum payload at level position (capacity decreases with angle)
Cable Interface:Ultra high-quality cable with SMA connectors
Ultra-precision, low-noise rotary joint with SMA connectors
(“K” connectors on DAMS 7250)
Included Options:Digital level for precise setup
Positioning laser for long range alignment
DAMS Software Studio Pro
Advanced processing module
3-year warranty on parts and labor
Technical support


Controller Operating Specifications

Control Methods:DAMS Antenna Measurement Software (or any software with serial communication which requires the Platform Development Kit)
Interface:USB/RS-232 serial/ethernet
Power Requirements:+48 vDC (6.0A)
Analyzer Interface:GPIB controller card (not included)


Physical Specifications

Positioner Dimensions:17 inches (30.5 cm) wide
12 inches (12.5 cm) deep
17 inches (35.6 cm) tall
Height:5” (12.5 cm) without vertical movement assembly or tripod

Standard Models

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

ModelFrequency Range
DAMS 5250DC to 6 GHz
DAMS 6250DC to 18 GHz
DAMS 7250DC to 40 GHz

Should you be interested in any of the following options, simply reference them in your inquiry for more information or pricing.



OPT-X0-9090° tilt stage (NEW!)
DFSM5-xxFull Spherical Mount (5 pound capacity)
(xx = available ranges from DC to 18, 40 or 50 GHz)
DFSM10-xxFull Spherical Mount (10 pound capacity)
(xx = available ranges from DC to 18, 40 or 50 GHz)
DFSM25-xxFull Spherical Mount (25 pound capacity)
(xx = available ranges from DC to 18, 40 or 50 GHz)
DPA-LASERTOOL-BLaser alignment tool
DPA-DIGILEVELDigital level
PT-DMS-THRUSTP-ACRLarger thrust plate
(12" acrylic, 0.350" thick)
PT-DMS-THRUSTP-ALMLarger thrust plate
(12" aluminum, 0.25" thick)
OPT-ENCEncoder feedback capability
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
[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]