- 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
This Variable Attenuator DC Block (VATTENDCB) 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 – 37dB (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) accepts DC voltage grom the connected GPS receiver to power the attenuator while the antenna input (ANT) is DC blocked.
- 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.