Testing and Measuring

RAMET a.s. has a variety of measuring/testing capabilities and tools for precise antenna testing and measurements. 
Among the most important tools belong:

• Outdoor Antenna Measuring Range
• Anechoic Chamber
• EMC Laboratory 
• Diagnostic Centre of Low- and High Frequency Technology
• LEICA AT402 3D Mobile Measuring Device 
• WENZEL LH108 3D Coordinate Measuring Machine
  

Description:

The antenna range is designed for far-field measurements of antenna systems in free space.

Contains:

• Agilent PNA Network Analyzer
• NSI Frequency Converter (0.1 – 6 GHz)
• NSI Distributed Frequency Converter (1 – 26.5 GHz)
• NSI-RF-5918 Beam Controller
• Special software
• System of reference antennas
• Positioning system
• Set of transmitting antennas
• Agilent PSG generator (250 kHz – 20 GHz)
• Power amplifiers
• RF cables and components
• Control cables

Main Features:

• NSI-RF-PNA20-001 RF system is employed
• makes it possible to collect data at 40 frequencies simultaneously
• frequency range of measurement from 800MHz to 20GHz
• dynamic measurements (40, 60, 80, 100 dB)
• distances available for measurement: 1 024 m or 70 m
• maximum weight of the antenna to be measured: 4000kg

Allows to measure:

• radiation characteristics in E- and H-planes in far field
• gain
• ellipticity
• polarization characteristics

For In-House Measurements of
ELECTROMAGNETIC COMPATIBILITY

• measurement of radiated interfering field in a frequency band from 30 MHz to 3 GHz in a screened anechoic chamber
• measurement of interfering signal on power line or output clamps in a frequency band from 9kHz to 30MHz
• for all measurements standardized detectors of peak, quasi-peak and mean value can be used

Allows to:

• test climatic resistance
  (VC3 7150 climatic chamber – Vötsch Industrietechnik)
• temperature range: -70°C ÷ 180°C
• humidity range: 10%  ÷ 98%  under temperatures ranging from 10 to 100°C
• test room dimensions: H 950 x W 1060 x D 1475 mm
• programmable controlling of temperature and humidity courses

• measure temperature courses and dependences
  (MS5 – Comet system)

• measurement of temperature and humidity courses at several points with a possibility of data recording

• perform mechanical vibration tests
  (L620M – ETS solution)
• frequency range: 0 ÷ 3500 Hz
• maximum double amplitude: 51 mm
• maximum force applied for sinusoidal vibrations:6 000 N
• maximum acceleration for sinusoidal vibrations: 100 g
• load-carrying capacity of vibration exciter: 300 kg
• ability to generate harmonic oscillation, or mechanical vibrations defined by a client

• measure microwave parameters
  (FSU50 + FS-Z75 + FS-Z90 + FS-Z110 
  - Rohde & Schwarz)
  (N5531S - Agilent)
• measurement of amplitude-frequency qualities of oscillators and generators up to frequency of 110 GHz
• measurement of absolute value of microwave signals up to 44 GHz from -140 dBm

• measure DC/AC voltage and resistance
  (3458A - Agilent)
• 8˝ digit multimeter available, enabling signal sampling at a speed of as much as 100 kS/s

LeicaAbsoluteTracker AT402 is a 3D mobile measuring device, which enables extremely precise measurements at ultra long distances - it is a device serving to perform large-size spatial measurements. 

3D coordinate measuring machine produced by a German company WENZEL enables very precise measurements of product elements and their subsequent comparision with mathematical model. ​