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I installed all of the required libraries and compiled this version. Looks good, but when I tried to do the Receiver Calibration, it worked like the directions(some of the switches were mapped differently), but when I pressed Select to save, it returned to the normal display with a lot of the text from the cal screen overlaid and was non functional. I had to cycle power to get it working again. I tried several bands and got the same behavior, however the I & Q corrections were stored in EEPROM. Do I just need to reset the Teensy to Blink and try again, or is there a S/W problem?

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Jack, it was from a post from several weeks ago .

This version of the code corresponds to the upcoming 4th edition of "Digital Signal Processing and Software Defined Radio: Theory and Construction of the T41-EP Software Defined Transceiver" by Albert F. Peter, AC8GY and Dr Jack Purdum, W8TEE. It is a point release of the software which contains the features and capabilities described in the book and works on V12 hardware only. Ongoing development of the code base is captured in the companion repository?.

Where did that code come from?

Jack, W8TEE

On Monday, February 24, 2025 at 11:22:34 AM EST, Robert Luken W3RDL via groups.io <now.w3rdl@...> wrote:

I installed all of the required libraries and compiled this version. Looks good, but when I tried to do the Receiver Calibration, it worked like the directions(some of the switches were mapped differently), but when I pressed Select to save, it returned to the normal display with a lot of the text from the cal screen overlaid and was non functional. I had to cycle power to get it working again. I tried several bands and got the same behavior, however the I & Q corrections were stored in EEPROM. Do I just need to reset the Teensy to Blink and try again, or is there a S/W problem?

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73

Bob W3RDL

Virus-free.

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Jack, W8TEE