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FT-991/A Panadapter - Documentation and Instructions

These pictures and instructions are for Board Revision: N

This Wiki aims to document the PY2RAF's reinvent of OE2DOR's Panadapter board, embedding a RTL-SDR in a FT-991/A Radio, using the radio's USB port to send the SDR traffic, with no extra cables, taps, chassis drill or IF ports, turning the FT-991/A into a real SDR.

Check the video for a glance of the final version working.

While the project originally aimed to make everything contained inside the radio, there are also other build possibilities - Don't miss it, it is important for prototyping and early stages.

NEW. Now there's also a Light Edition, with fewer whistles and bells, simpler to build and potential more gain - be sure to check it prior to selecting the right one for you.

01 - Project Overview

02 - Technical Details

03 - Advantages

04 - Building the Board

05 - Testing

06 - Main Unit USB Controller Replacement

07 - Install

08 - Software Configuration

09 - Acknowledgments

Appendix 1 - The Light Edition Board

Appendix 2 - Other install possibilities

Appendix 3 - Directly tuning the IF frequency

Appendix 4 - Using RTL-SDR GPIO Ports

Appendix 5 - FT-991/A Input Preselector Filter characterization

Appendix 6 - Sharing your serial port with other applications

Appendix 7 - Raising the bar: Embedding an RSP1A instead of an RTL-SDR

Appendix 8 - IC-7300 implementation