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With respect to logging, there is a comment node on the logging functionality at the top of the flow. Logging when enabled?creates/appends CSV data returned from the SPE to a file on the Node Red server. Every 20th sample is saved so at the default polling rate of 250ms, a sample is saved every 5 seconds. The original intent was for objective evidence should the SPE fail (the 1.3K and 1.5K have high failure rates). Per that same comment node the fields are:

Date,Time,Model,Operate/Standby,RX/TX,Bank,Input,Band,TX Ant,RX Ant,PWR LVL,PWR Out,ATU SWR,Ant SWR,PA V,PA I,Upper Temp,Lower Temp,Comb Temp,Warnings,Alarms

I discovered afterwards, with a little bit of Excel magic, one can do some statistical analysis on the data. Here are some examples:

15M power output (drive level on L is a bit low):

17M power output (have not used on M or H power levels but L drive a little low):

20M: Drive levels OK on all three settings:

Ron WB2WGH