See subject at 0730. Also thin "almost fog" (not quite reaching the ground). Should burn off quickly.
0830: Frost completely melted -- now there is water on everything (hence some some diags are bad). "Fog" has become haze.
set sp=12 on both soil motes, that should restore reporting power every minute, that was increased when we changed the data rate to 1sample/5seconds.
Since we don't have a monitor of Vdsm from M21 (M22 and A11 are power together and monitored by A11's Vdsm), we need to resort to manual measurements.
Today's reading was 12.54V
A19 TRH 2m died overnight. Even after power cycle (to the entire mote), it didn't come up. Found that, indeed, this sensor (#65) wouldn't talk on the I2C (though the fan was on). I installed spare sensor #67 and it reported only nan! I tested spare sensor #07 (removed from another station long ago) and it seemed fine. Set CUR 80 on #07 and installed it.
This morning made the rounds to change all TRH fan current limits to 80mA. First, did all the serial-connected TRHs remotely A1, A2, A3, A5, A6, C20, M21, M22. Then walked to every other station with a serial TRH head, a Bulgin sensor test cable, a laptop, and a mote battery. My procedure was to pull the top SHT, plug it in to this test head, reprogrammed CUR 80, reinstall it, repeat for lower, then press the mote rescan button. The order was A19, A18, A16, A17, A15 (took a break), A9, A10, (another break to do stuff at M), A11, A12, A13, A14, A8, A7, A4, finishing about 1245. I also foil taped all remaining TRH booms (except M).
Obviously, 80mA is still a guess, but should give us a bit more headroom.
Note that with this procedure, there was perhaps a minute of data from each TRH when the inlet tube wasn't yet installed. Ideally, this minute should be removed.
The following "wagon wheels" were loose, but I didn't have an Allen wrench to fix:
A4 lower
A13 lower
?A14 both
To try to get the Tsoils to work, Gordon logged in to the motes and issued the commands:
dr=5
eeupdate
to both soil motes. This got rid of the 94.xx values in Tsoil.c, but did not recover Tsoil.g. I'll try swapping in another Tsoil.g soon.
Don, Jielun, and I, with occasional assistance by Larry and Yong Hi, completed a height survey of all tower sites. We were worked continuously from about 10:30 to 18:30 with a short lunch break. Hopefully the numbers will work out some time.
We encountered one more (small) rattlesnake.
The 0700-0730 wind profile has light winds with direction turning from 200-350 degrees in the lowest 10m, then higher from the north above -- a two-layer flow.
Out of desperation (T.15m was turning off its fan), I just figured out SRS's code:
control-U to get into user mode
"CUR xx" to set the current limit to xx
"EXT" to get back to data reporting mode.
Obviously, this only works on serial TRH's.
While Larry and I were working on C tonight, we noticed that the transformer was "mooing" about every 5 seconds. I had the impression that it was choosing a different tap every time (BIll's?) SODAR beeped. It didn't sound normal or healthy.
Had just seen that PTB at C wasn't coming in. Visited the site and determined that the Emerald port (10) was bad. (PTB ran fine on TRH's port 9 and swapping fuses didn't help either.) Moved the PTB to port 12, changed config (just on the DSM), and adn/aup. Now getting data.
Looking back, this port died during the lightning. Nice (and a bit of a mystery) that only one port blew!