On my Sonex AeroVee the RADC is CAN linked to a Discovery Lite, and the 4 EGT probes are K type wired to TC 1-4 while the CHT probes are wired to TC 5-8 per the RDAC manual. Problem is that one or two EGT or CHT readings are always displayed too high with using the recommended Scan 1 for EGT and Scan 2 for CHT. Changing the Scan que results in a different probe (EGT or CHT) showing error so it is improbable that the probes are erroneous. I've also tried various dip switch positions without success. The only dip switch position I have not tried is RDAC SEL switches which are normally off. Any suggestions on how to get the error out of the display?
Lou Toth
Sonex 1520
EGT CHT Scan and inaccuracies
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