Variable Attenuators

M.E.C.’s 60V Series of waveguide variable attenuators are available in attenuation ranges of 0 – 40 dB.  Both  narrow and broad band versions are available.  Full band flatness is as low as ± 0.5 dB from 0 – 10 dB attenuation and ± 0.7 dB from 10 – 20 dB attenuation.  Full band flatness degrades at higher attenuation levels, however narrower bandwidths can hold ± 0.5 dB flatness up to 40 dB attenuation.

Calibrated vernier drives are available upon request.  A locking screw is standard on the drive mechanism.  These components may be converted from variable to a fixed version by simply switching the attenuator block.  Our high precision machining guarantees unit to unit consistency within ± 0.1 dB.


  • Broad Attenuation Range
  • Low Insertion Loss
  • Low VSWR
  • Full Band


Order and Sales Information

(1) The above table is a representative sample of M.E.C.’s available variable attenuator designs.

(2) Please contact M.E.C. with your specific requirements.  All customer designs are welcome.