Windy and quite warm.
Citadelle de Besancon. EFTF-IFCS 2017 this week in Besancon.
Although the PCB was designed with equal-length traces for the output stages it appears that channels 3-4 and 5-6 are consistently late, and some shortening of the traces would improve things. I tried this on one PCB (blue data points) with moderate success.
Measurement setup: 1PPS source to 50-ohm splitter. One output of the splitter drives CH1(start) of a time interval counter (HPAK 53230A), the other output drives the input of the pulse distribution amplifier. Outputs wired to CH2(stop) of the counter and measured for 100 s or more (delay is average of 100 pulses). Counter inputs DC-coupled, 50 Ohms, trigger level 1.0 V.
Canon 500D with 200/2.8L lens. Quite ok for the helicopter that flew close to the crowd, but something much longer, and a steady hand, would be better for the F-18 Hornet.
About +11 to +13C with a cold-ish wind. After the first start at 11:00 they were out of maps by 12:00 - thus this less than ideal hand-drawn map. Quite good from the start towards the south, but then a few mistakes, J-curves and loops towards the end. I'm happy this course didn't have controls in the top left corner which has way too many map symbols... Around 65 min with maybe 10 min of mistakes.
Quantized voltages forming a ladder-like I-V curve of a Josephson voltage standard experiment as seen in the lab this week...