An SDR front end that covers the HF band and interfaces with a PC.

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• A multi-part article accepted for pubishing in PW Magazine (https://pocketmags.com/practical-wireless-magazine)

 

Part One - The QPD (Published in January 2022 edition)

• All the photos and schematics in the article.

• Information on some of the components used.

• How to get the gerbers or just order the PCB.

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Part Two - LW and MW (Published in February 2022 edition)

• All the photos and schematics in the article.

• Information on the potentiometer used.

• Example of the voltage divider calculations.

 

Part Three - Single band operation (Published in March 2022 edition)

• All the photos and schematics in the article.

• Information on some of the components used.

• How to get the gerbers or just order the PCB.

​Part Four - Fixed operation  (Published in April 2022 edition)

• All the photos and schematics in the article.

• Information on websites and some of the components used.

Part Five - Covering 3-30 MHz (Published in May 2022 Edition)

• All the photos and schematics in the article.

• Information on some of the components used.

• How to make the dial using VISIO.

• The ZIP of the VISIO file.

Part Six - Towards an all-band HF receiver Part A (Published in the June 2022 edition)

• All the photos and schematics in the article.

• Information on some of the components used.

Paper Seven - Towards an all-band HF receiver Part B (Published in the July 2022 edition)

• All the photos and schematics in the article.

• Information on some of the components used.

• Schematic of the MCU and DDS.

• Using an optical encoder.

• The ZIP of the VISIO file used to make the Decal.

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I have some spare parts / PCB's - list is here

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​​Updated - 12 July 2022