Thank you all!!
My 80m OCFD is based very closely on Rick¡¯s (DJ0IP) work. I aimed for a ~20% split. It has a 4:1+cmc up at the feed point and coax after that to the rig. No tuner and QRP uBITX making the RF.
My question was really if there was a way for the nanoVNA to indicate the actual split point now that it is up.
My diy makers error rate is >0. So I wondered if there was a way to validate the actual split point.
Don
Km4udx