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    NSI-600C-8
8' (2.4 m) Cylindrical Near-field Measurement System

DESCRIPTION

Model 600C-8 is a complete cylindrical near-field system ideal for measuring broad-beam (azimuth) antennas with apertures less than eight feet making it ideal for testing stacked linear arrays. The 600C-8 consists of a vertical probe tower with an 8’ (2.4 m) travel, high capacity stepper motor based azimuth positioner, control computer, software and cabling. The high capacity probe stage can accommodate probes as large as a WR650 including optional roll and translation stages. This simple design is easy to assemble and align, accurate, and can be dismantled for transport or storage within one day.
CAPABILITIES

The system interfaces with a wide variety of RF equipment and is capable of measuring amplitude and phase patterns from mid-range L-band to mmWave Bands. The system includes NSI Antenna Measurement Software.

The system software runs on a Pentium based measurement workstation and provides automatic setup of scans based on measurement parameters and desired output. Measured data can be processed for far-field or holographic patterns yielding complete characterization of the antenna’s performance. A single data set provides information on antenna gain, side lobe structure, beam pointing and cross polarization.

The Model 600C-8 can be supplied with a variety of options to enhance system performance.
FEATURES
  • High Accuracy Y Linearity <0.003” (0.076 mm) RMS
  • 360° x 8’ (2.4 m) Cylindrical Scan Area
  • Precision Rack and Pinion Drive
  • Mid-range L-band to mmWave Measurements
  • 1,595 lbs. (725 kg) load capacity Az positioner
  • Far-field, Near-field and Holographic Patterns

SPECIFICATIONS
Construction: Steel tower and base; separate azimuth stage
Drive System: Precision Stepper Motor; rack and pinion
Scan Area: 360° in azimuth; 8’ (2.4 m) Y
Y-axis Linearity Uncorrected: <0.003” (0.076 mm) RMS
Resolution: 0.0125° azimuth; 0.001” (0.025 mm) Y
Position Repeatability: 0.03° azimuth; 0.002” (0.05 mm) (Y) RMS
Scan Speed: 20°/s azimuth; 15 in/s (0.38 m/s) Y
Azimuth Stage Axial Load: 1595 lbs. (725 kg) max.
Probe Carriage Capacity: 50 lbs (22.7 kg) maximum recommended, WR650
System Controller: NSI controller with serial and parallel I/O interfaces
Measurement Workstation: Measurement workstation computer with large LCD monitor.
Sepper Motor Power Amplifier: EIA 19” rack mount.(7” high x 14” deep)
Motor Cables: Quick-connect; 40’ (12 m)
Scanner Absorber: Absorber Kit (8” pyramidal cone)
Probe: WR90 Open-ended Waveguide Probe SMA (f) transition & Pyramidal absorber (3")
Probe Absorber: Pyramidal Cone Absorber (8”)
Probe Mount: Angle Bracket-allows mounting probe in “V” or “H” orientation
RF Cables: Qty. 4 - Flexible 15’ (4.5 m) with SMA (m-m) coaxial terminations; DC-18 GHz
Rotary Joint: Qty 1 DC-18 GHz on Az Stage
Supported RF Devices: NSI Panther Receiver Subsystem or selection of Agilent, Rohde & Schwarz and Anritsu VNA's (contact NSI for a complete list)
Power: 100-120/200-240 V AC, 50/60 Hz, 500 watts

DIMENSIONS

  • Width -53.5" (1.36 m)
  • Depth -63.0" (1.60 m)
  • Height - 152.6" (3.88 m)
  • System Weight - 1,400 lbs (636 kg) approx.

LINKS
  • No additional links are curently available.
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ORDERING INFORMATION

8’ (2.4 m) Cylindrical Scanner System including azimuth and Y stepper motor driven scanner, 40’ (12 m) motor cable set, control processor, motor drive electronics, NSI Antenna Measurement Software, scanner absorber kit, X-band probe kit with probe absorber and mounting bracket, RF cables, installation tool kit, system documentation and operation manual.

OPTIONS

Opt 100 220 VAC 50 Hz Operation
Opt 101 European Version - CE Mark
Opt 102 Delete X-band Probe
Opt 103 Additional Operation and Maintenance Manual
NSI-SC-5603 Spherical Upgrade
NSI-SC-5630 Probe Roll Stage
NSI-SC-5631 Probe Roll Stage high capacity
NSI-SC-5620 Probe Z-Stage, 4” translation
NSI-SU-5601X On-Site Installation and Training


For additional options and information see Scanner Options and Accessories.
Nearfield Systems, Incorporated
19730 Magellan Drive, Torrance, CA 90502, USA, Tel: 310.525.7000, Fax: 310.525.7100
Email: sales@nearfield.com. Visit our website: www.nearfield.com