HardLabs

ActiveSplitterCover

aaknitt·ActiveSplitterKiCad·ActiveSplitterCoverPCB/ActiveSplitterCover.kicad_pcb

ActiveSplitterCover PCB layout, top view — open source board by aaknitt

About the ActiveSplitterCover PCB

ActiveSplitterCover is an open source PCB design by aaknitt, published on GitHub under the Custom license license. It is a 2-layer board measuring 67.8 × 31 mm, with 5 components from 3 distinct parts.

It belongs with the rf & radio designs in this gallery.

From the project

Hardware design for an active RF splitter for use with RTL-SDR receivers in the 100 MHz to 1 GHz band

Uses amplifier circuit from this LNA design.

Estimated cost to build is $40 to $50 in low quantities with U.S. sourced parts. Could be as low as $10 BOM cost with overseas sourcing and higher quantities.

- Designed to connect four RTL-SDR USB receivers to a single antenna without insertion loss. - Amplifier circuit provides about 18 dB to 20 dB of gain. Four way resistive divider results in 12 dB of loss per output, so total is about 6 dB of gain to each port. - Amplifier is designed to be powered from an SDR providing 3 to 5 volts DC power to the J1 RF output port via a bias tee or from…

ActiveSplitterCover, from the project README
From the project README

ActiveSplitterCover bill of materials (BOM)

5 components, 3 distinct parts.

QtyPartRefs
2
Conn_01x24_Pin
J6, J7
2
Conn_01x12_Pin
J8, J9
1
Conn_01x01_Pin
J10

ActiveSplitterCover design files

The KiCad project lives in the aaknitt/ActiveSplitterKiCad repository on GitHub; these links point at the commit this page was built from.

ActiveSplitterCover: common questions

How big is the ActiveSplitterCover PCB?

The ActiveSplitterCover measures 67.8 × 31 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ActiveSplitterCover?

5 components, from 3 distinct parts. The full bill of materials is listed on this page.

Where can I download the ActiveSplitterCover design files?

From the aaknitt/ActiveSplitterKiCad repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the ActiveSplitterCover design in my own project?

It is published under Custom license, which limits how it may be reused; read the license before building on it.

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