LibreSDR and the Portsdown 4

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The Portsdown 4 supports transmission using the LibreSDR with the firmware supplied by PA2JSA. It has been tested with firmware version

Set-up

Download the firmware and unzip to get a .img file. Using software such as Win32 Disk Imager, write this image file to an SD Card.

Insert the SD Card into the LibreSDR, and apply power to the LibreSDR through the "OTG" slot.