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2 and 4 Channel USB RF Attenuators

2-Year Warranty


SKU: AD-USB PT5 Category:


Key Features

  • 2 or 4 individually controlled RF attenuator channels

  • 50-6,000MHz

  • 0.5dB Step Resolution

  • 63dB dynamic attenuation range

  • >85dB Chain-to-Chain Isolation

  • USB powered & controlled


These hardy two- and four-channel attenuators are proven customer favorites that have become popular mainstays of the AdauraTech product lineup. Thanks to their reliability and no-frills feature set, they’re incredibly affordable and easy to deploy without compromising on core performance. Both deliver 63 dB of attenuation at step sizes of 0.5 dB across the 50 MHz to 6 GHz frequency range. They’re also capable of more than 85 dB of interchain isolation. Built-in USB connectivity allows them to be powered and custom controlled from a PC with one cable. Like our higher-end models, these devices also have an intuitive GUI that provides quick access to testing functions.

What’s Included

  • 2 or 4 channel USB RF Attenuator
  • 5′ USB Cable Type A to B
  • USB Thumb Drive containing software application, Windows drivers, and sample scripts.

Technical Specifications

Attenuation Step Size (dB) 0.5
Number of individually controlled RF chains 2 or 4
Operating Frequency (MHz) (50 ohms) 50 – 6,000
Attenuation Range (dB) 0 – 63
Input 1dB Compression Power (dBm) 25
Input IP3 Power 45
Chain to Chain Isolation (dB) >85
Attenuation Accuracy
(Referenced to Insertion Loss)
+/-(0.60 dB +5% of Atten. Setting)
Switching Speed 250 us
Return Loss Better than 10 dB All States
Max Input RF Power (Watt)­ 1 W
Power Use (USB) 50 mA
Operating Temperature 0C to 70C
Communication USB
(Virtual COM Port)
Insertion Loss (dB) (50 MHz) 4
Insertion Loss (dB) (6000 MHz) 9
Export Info
HTS #: 8533.29.0000

Mechanical Design

4-Channel AD-USB4APT5

2-Channel AD-USB2APT5

Additional information

Weight N/A
Dimensions N/A

2-Channel AD-USB2APT5, 4-Channel AD-USB4APT5

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