2 and 4 Channel USB RF Attenuators

2-Year Warranty


SKU: AD-USB PT5 Category:


Key Features

  • 4-Channel, USB

  • 50MHz-6GHz

  • 0.5dB Step Resolution

  • 63dB Attenuation

  • >75dB Chain-to-Chain Isolation


What’s Included

  • 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

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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