Happy birthday Josh! Another sunny, cloudless day. Trailer continues to be mouse-free and outhouse continues to be spider-free (though there are plenty of them elsewhere).
All looking good in the data, except that when I checked the hotfilms after the 3pm sounding the 0.5m one (which was having intermittent problems yesterday) was now reading about 0.3.
Out at the array checked the resistance of the 0.5m hotfilm, and got values around 1.1 kΩ (compared to the 1m hotfilm, which was around 7Ω as expected). We tried swapping in the extra bridge to hotfilm mount cable, no change. We measured resistance again at the hotfilm mount, without the cable to the bridge, and got the same value. We removed the probe, didn't see anything obviously wrong with it, tried reseating. While the probe was out I tried to blow on the probe mount in case there was water in it, but didn't notice any. Switching in spare probe SF9 returned resistance values to around 7Ω as expected, and the probe is now measuring about 2 volts, same as the other hotfilms. Once we verified that fixed the problem, we changed the dip switches in the bridge for the new probe at 0.5m. Data after around 5:10pm local should have the correct switch settings.
So I think now we're out of spare hotfilm probes, unless we could make the one that's wire and not film work, but Steve says we don't have the correct bridge settings for that one.
Jielun has also been wondering about whether the guy strap near the 2m hotfilm is the cause of the weird data she's seeing, especially since the ratchet itself is at about 2m. We're talking about redoing the guy wires on that tower entirely, but for now I've tried taping over the ratchet (to smooth its shape) and the extra strap (to prevent it flapping).