Santiago

You asked about where the Band Data comes from.

I derived band data from the Flex Server "BCD" USB cable output. ?

Here is a link to the USB Cable Usage Guide, from Flex;

You can find my flow for the band decoder on my ?github in the?“Sub-Flows” folder, "Satellite Board” flow file.

I connected each output ?wire ?(Bit) of the USB cable to a unique GPIO pin on the Raspberry Pi. ? I then use this table to build a ?“decoder” using Boolen logic gates (reverse truth table) for each band. ?

Here is a map from the FTDI USB cable specification showing Bit versus wire color:

Finally, I got to use something I learned 50 years ago in college, building Boolean equations from?truth tables. ?The truth table is ?provided in the Flex USB Cable User Guide.

Here is a screenshot of the flow, with the 40M segment selected. ?It is a simple matter of using “AND” logic on the " X” "OR" "X-Not” pins. ?(X=1, X-Not=0)

I then send the band data via MQTT broker ?to all the other boards that need to know what TX band is seleced on the Flex Server.

Alan

WA9WUD