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Features

  • Direct Reading
  • Continuously Variable
  • Splash Proof
  • Ruggedised
    Transportation Case
  • Low Cost

Specifications

Attenuation Range: 0 dB to 50 dB (Optionally 0 dB to 60dB)
Attenuation Accuracy: 0.5 dB
VSWR: 1.15 : 1

The Flann range of Field Useable Rotary Vane Attenuators, Series 113, has been developed in response to the specific requirements of major UK and European communication companies, operating national point to point Microwave Radio Networks, for Fade Margin and Bit Error Rate measurements in a field test environment.

Models in the range utilise many of the components from the highly regarded precision rotary vane attenuators produced by the company. Each instrument features a direct reading scale calibrated in 1 dB increments from 0 dB to 50 dB. The attenuation accuracy is 0.5 dB over the full waveguide frequency band. Models with an extended attenuation range up to 60 dB are available to special order.

Reliability in a field test environment is enhanced by the splash proof design. Two expandable securing straps allow hands-free attenuator operation in difficult situations. The units are optionally available housed in a fitted rugged aluminium transportation case.

The attenuators can be supplied fitted with ancillary pieces of test equipment to suit specific applications; in some instances these may be accommodated within the transportation case. For example, ancillary components could include flexible waveguides, waveguide to coaxial adaptors or fixed attenuators for an extended attenuation range.

Models are available in other waveguide sizes and frequency ranges. Details on request.

      
ModelWaveguideFrequency Range (GHz)Flange to Flange Length (mm)
WGWRR
1511315112846.58 - 10.0340
1711317751209.84 - 15.0276
18113186214011.9 - 18.0250
20113204222017.6 - 26.7250
22113222832026.4 - 40.1174
           
ModelDimensions (mm)
ABCDEFGHØJØK
1511334014095.5558944.5121012028
1711327610879.5395728.5121012028
1811325010879.5395728.5121012028
2011325010879.5395728.5121012028
2211317410879.5395728.5121012028