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The Proven Leaders
Since 1957
for RF and Microwave Components

For over 60 years ARRA (Antenna & Randome Research Associates) has been a global innovator in designing, manufacturing, distribution of coaxial and waveguide components. Supplying dependable, cost effective solutions to commercial and military customers worldwide. Our vast products line includes: Attenuators, DC Blocks, Couplers, Power Dividers, Combiners, Line Stretchers, Phase Shifters, PIN Diode Switches, Waveguides, Adapters, shorts, Pressure Windows, Twists, Bends, Horns and Terminations.
With our extensive Coaxial and Waveguide product offering of over 2,000 basic designs, ARRA has the ability to customize or modify components to your specific specifications in our modern 20,000 sq foot facility.
ARRA maintains a quality assurance and inspection program which meets or exceeds the requirements of MIL-Q-9858A and MIL-I-45208, as well as Space and NASA requirements. ARRA quality process follows the ISO 9001 guidelines to ensure the highest level of reliability.

Coaxial Components

ARRA offers a wide range of coaxial components for RF and microwave applications, including for broadband use, for narrowband systems, for low power use, and for high-power requirements.

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Custom Products

ARRA has been supplying dependable, field proven, Customized Microwave and RF Components for over 50 years.  We strive to exceed typical specifications as well provide the fastest delivery possible.

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ARRA High Power Directly Calibarated attenuators.


  • Frequency bands: from 500 – 4000 MHz
  • Continuously variable for all values of attenuation
  • Many models exhibit flat attenuation vs
    frequency characteristics
  • N or SMA female connectors are standard
  • Non - contacting
  • Insertion Loss: 0.5 dB max
  • VSWR: 1.50 max
  • Material: Body: Aluminum
    Connectors - MIL-C39012
  • Finish: ARRA Blue per - MIL-C-22750 (50 Watt models or
    High Temp Black (100 Watt models)
  • Directly calibrated models
Frequency Range
Range (dB)
Attenuation vs
(Freq ±dB)
RF Power*
(Avge W)
Form Factor
Model No. *
0.5-1.0 10 N/A 50 00-2266 2484-10
0.925-1.225 15 0.5 50 00-2266 2-3484-15A
30 N/A 50 00-2266 2-3484-30A
1.0-2.0 10 1.0 50 00-2266 3484-10
20 N/A 50 00-2266 3484-20
30 N/A 50 00-2266 3484-30
2.0-4.0 10 0.75 50 00-2266 4484-10
20 N/A 50 00-2266 4484-20
30 N/A 50 00-2266 4484-30

* Units with attenuation vs frequency specifications are supplied with direct-reading dials calibrated in. 1 dB increments. Other models marked N/A are supplied with 180° dials for reference only.
** All 50 Watt models can be modified to handle 100 Watts. For this option, precede model number with H.
*** Model numbers indiciated Type N connectors. To specify SMA connectors, suffix model number with S. For dial lock option, precede model number with L. Ex: L2487-10 or HL2487-10 for 100 Watt version.

High Power Directly Calibrated: 50 to 100 Watts