Picoscope 3224, 100ks/s, 'PicoScope6_r6_7_40' ? , Capturing 2 channels of RS422 data TX/RX, 1200,o,8,1 . 11 bytes ~106ms each channel 160ms from start of TX to end of TX, Its on a 1s cycle so plenty of idle time between polls. With 20ms/div it triggers reliably on the first rising edge of data, But ...