VATTENPDC

Features

• Variable Attenuation Range
• Attenuation from -3 - 30dB typical
• Small Form Factor
• 2.5 x 0.75 x 1.49 in.  (Not Including Connectors)
• Low SWR < 1.5:1 typical

Description

This Variable Attenuator Pass DC (VATTENPDC) is a one input, one output attenuator that operates with a variable attenuation range that can be user selected via a potentiometer control. This unit provides between 3 – 30dB (typical) of attenuation in a miniaturized housing. The frequency response covers the GPS L1/L2 and GLONASS bands with excellent flatness. In the normal configuration, the RF output (J1) passes DC from the connected GPS receiver through the attenuator to the antenna, allowing the GPS receiver to power both the antenna and the attenuator.

Use Cases

• Attenuating excessive power for sensitive applications.

• Receiver threshold testing.

Note: Previous versions of this product featured an internal potentiometer which was accessed via a hole in the lid. To adjust these older units, remove the red hole-plug and use a small flathead screwdriver to adjust the internal potentiometer until the desired attenuation is achieved.