FLATLAND96: Site 2 Messages, 51 Entries..

Station #2
I put in the 'correct' configuration and started the EVE running.
GOES transmit is up.
No logger / radiation stuff, or TRH for now.
FreeWave seems to be sluggish, but is working.
jm

station 2 had the prop vane boom aligned, and a nominal of 135.0 deg for
the boom azimuth.
the freewave antenna was raised to the 3rd mast section.
the presasure port was polished and water and oil was added to the ETI
rain gauge.
the ATI sonic was zeroed and leveled to better than a 10th of a degree.

Work at PAM site #2

Installed hygrothermometer.
Shot prop boom angle at 126 deg 27' 35", 
	entered angle into EVE (126.5)
Checked sonic level and okay to at least 0.1 deg.
Shot angle of sonic "v" axis at 125 deg 10' 48"
Zeroed sonic uvw axes.
Installed bph#27.  It is working okay.

ETI is Model 8205-00500, S/N 057

Kurt painted the radiation stand leg extensions black.
Installed Licor pyranometer PY9024 and REBS net radiometer
	Q94125, leveled both radiometers
Installed heat flux plate H943148, soil moisture sensor
	SN003 (CS615 #8688 LT#417624), and soil temperature
	sensor STP94015.
Installed soil sensors NE of rain gauge between N/S corn rows.

This is soil/radiation sensor set #1, but Campbell logger is
#3, so we removed the logger to swap with that at site #1
(where we installed sensor set #3).

Site Visitation Log Entry
=========================

Tech: KK
Weather: sunny
Set Clock: Y
Trh  IC: N
Baro IC: N
Rain IC: N

 Coments: installed datalogger, checked out BPH from station 3 (OK)

installed datalogger,
tested BPH from station 3 (OK)

6/18/96

Data logger is Campbell CR10 #5350
twh

Site Visitation Log Entry
=========================

Tech: JM
Weather: Clr, Hot, Calm
Set Clock: N
Trh  IC: N
Baro IC: N
Rain IC: N

 Coments: Raised sonic to 4.5m.  ETI test.  Soil Sample.  Offload Data.

Station Vist from about 16:00 - 18:00 GMT, 96/06/19, JD171

Data Uploaded:

TRH:	Dead Fan, erroneous reading
	Removed unit for repair.

ETI Test:

Sonic:	Raised from 3.14 to 4.54 meters, leveled sonic.
        Dried interior of electronics box and sealed with electrical tape.  
        Checked received pulses with scope and all look fine.

Soil Sample Taken for moisture check.

Site Visitation Log Entry
=========================

Tech: JM
Weather: Clr, Hot, Calm
Set Clock: N
Trh  IC: N
Baro IC: N
Rain IC: N

 Coments: Remove old Freewave.  Install TRH.  Digital Photos.   Having
 another temp related problem: comm. w/compaq tx not talking.

Station 2 Visit:  22:05-22:30Z, 96/06/22,  JD174

Installed Upgraded FreeWave Radio  #560-0575

New EVE EPROM Installed:

Could Not Load new Config:
I was unable to do this while at the station because the Compaq died.

Unfortunately, the Freewave was not responding after I got back to the base.
I suspect there may be a configuration problem with the 'hack' i put together.

Site Visitation Log Entry
=========================

Tech: JM
Weather: 
Set Clock: N
Trh  IC: N
Baro IC: N
Rain IC: N

 Coments: Freewave setup correctly.  Download  new config with correct
 BPH/RH coef.   High Eff power supply added.  Soil sample.  35mm Photos

Station 2 Visit: 15:50-17:30Z, 96/06/23

New Freewave Radio reconfigured, now working.

New Configuration:
For the new EVE software loaded yesterday evening when i couldn't proceed
because of the dead compaq.  This config has the proper coefficients for the
BPH/ humidity measurement.

Uploaded METPPF files

35mm Photos taken:
Full 360-degree, soil installation, etc.  Now let's see if the develop ok.

New High Efficiency VME Power Supply installed.

Soil Moisture Sample Obtained

ETI / Campbell Test:
See next note about ETI.
I was again unable to communicate with the Campbell to download its program so
that it can be modified for the proper totalizing method for the ETI.

ETI Check performed during station visit (see previous note).

Jerry Price said the ETI shouldn't lose it's coefficients unless the
battery voltage goes down slowly.  Also, he wanted to see a higher voltage than
11.2, which i saw at station 1.

Voltage at Campbell and ETI: 13.3
Coefficients were definitely gone.  Programmed them in.  Cycled power by pulling
the 9-pin cable.  Coef. dumped.  Reconnected the ETI to the input power rather
than on the campbell take-off lugs.  Programmed Coef. Cycled power. Same
results.   Repeated by programming coef., cycling power using the main EVE box 
switch, same results.

Conclusion, the ETI will dump it's cal coefficients on a power cycle.
ETI probably needs to put a delay into the decision about reprogramming the
coefficients during 'low-voltage' situations.

Site Visitation Log Entry
=========================

Tech: JM
Weather: hot. clr. lt brz
Set Clock: N
Trh  IC: N
Baro IC: N
Rain IC: N

 Coments: TRH fan dead.  Freewave not talking.

Station 2 Visit: 22:20-23:35, 96/06/28, JD180


TRH Fan Replaced
	This station had been having high temps.  I found the fan was dead, and
	wouldn't come back.  This is the same site where similar problems
	occurred earlier.  I replaced the fan in the beehive....what a nuisance
	to do.

EVE Not talking
	I never got the Compaq to cooperate with EVE.  It would see the EVE's
	messages but apparently never got a xmt through.  This had happened
	quite a bit previously, all over, and had been attributed to low/hot
	battery in the Compaq.  Even after powering down the Compaq for awhile
	and using the battery cable Matt sent, and recycling the Compaq, i 
	still never go into EVE.  I didn't have a gender change to try the RJ45
	direct console connection.
	NOTE: that this station has been having Freewave difficulty as well, but
	i think that's related to the lowered antenna at the base and a
	different radio xmit characteristics table than normal being used with
	these new replacement units.

Site Visitation Log Entry
=========================

Tech: SS
Weather: 
Set Clock: N
Trh  IC: N
Baro IC: N
Rain IC: N

 Coments: EVE comm. to console/freewave was down.  New campbell proms.
  Pgm ETI coef.  ETI test.

Site Visitation Log Entry
=========================

Tech: SS
Weather: hot and humid
Set Clock: N
Trh  IC: N
Baro IC: N
Rain IC: N

 Coments: Came to replace the 5 amp fuse. If this work correctly, goes
 will be back up. Replacement fuse worked (according to EVE).

Station 2 Visit: 22:00-23:10Z, 96/06/29, JD181

New Campbell Prom installed.
ETI Cal. Coef. Programmed.
ETI Power cable to battery box installed.
ETI Test: logged elsewhere

Uploaded Data.

EVE communications had been down at this site, both the console and the
Freewave weren't receiving input.  The Freewave appeared to be powered down,
i.e. no lights.  Tested the power connector and it was OK.  Tied the serial into
the compaq and saw the polling messages.  Plugged the entire box back together
and it all worked again.  I'm not sure what happened because the EVE continued
to collect data and GOES report, but it would appear that the Freewave somehow
locked up which probably effected EVE's console as well.

GOES will be down for awhile at this station.
I managed to blow the main box fuse when testing for the Freewave power.  The
take-off connector was taped so that hopefully this doesn't happen again.
However the only fuses on hand were 2.5A, not enough to run the entire station
plus the GOES transmits.  Tomorrow a new fuse will be installed.

  The Freewave worked fine at station 2. I hope to
replace the fuse there and get GOES back up today.

  I went to station 2 to replace the main power fuse. With the
5amp fuse GOES was turned back on. It appears to be operating
ok.

Site Visitation Log Entry
=========================

Tech: srs
Weather: sunny, breeze
Set Clock: N
Trh  IC: N
Baro IC: N
Rain IC: N

 Coments: Sonic moved to 5.7m. Re-zeroed sonic. Checked GOES clock, ok.

		visit time:  15:45 - 16:45 GMT
 
  The sonic, at station 2, was moved to a height of
5.67 meters. It is now ~4m above crop height.
The sonic was re-zeroed. I will go out later to shoot
the angle since the boom is now mounted on the circular
mast section.

 New angle: 213 degrees 58' 25"

Site Visitation Log Entry
=========================

Tech: srs
Weather: partly cloudy
Set Clock: N
Trh  IC: N
Baro IC: N
Rain IC: N

 Coments: downlod files metppf.181 - metppf.186.  IC on TRH: T high .2
 C, RH high 3%

		visit time: 17:00 - 17:30 GMT

  I did a temperature IC using the ASSMAN. The data
was recorded on the compact pc. Overall the temperature
was about 0.2 degrees high and the humidity was around 3%
high compared to the ASSMAN.

		visit time: 16:45 - 17:15 GMT

  Soil and crop height measurement were made.
Refer to logbook entries 35 and 39.

Site Visitation Log Entry
=========================

Tech: clm
Weather: broken cluds
Set Clock: N
Trh  IC: N
Baro IC: N
Rain IC: N

 Coments: 

		visit time: 20:00 - 21:30 GMT

  I switched the electronic boxes for the sonics at sites 2 and 3.
At site 3 the sonic was adjusted and zeroed. At 2 only adjustments
were made since the sonic is at 5.7m. The stations will be monitored.

  Based on the sonic flag plot, the electronic box is where
the problem is. The "u" vector is now spiking at 2 while
3 looks ok. I let it run through the night.

		visit time: 15:40 -15:50 GMT

 The sonic electronic box has been removed from site 2.
It is in for repairs at the base station. The sonic should
be backup later today.

Site Visitation Log Entry
=========================

Tech: .
Weather: sunny
Set Clock: N
Trh  IC: N
Baro IC: N
Rain IC: N

 Coments: Replace sonic box which was removed earlier for repairs. U component
 still has spikes. Drivers adjusted but not zeroed.

		visit time: 19:30 - 20:30 GMT

 After checking all the signal lines for conductivity I installed
the sonic electronic box back out at site 2. There was nothing
questionable about the connections from the connector to the
backplane. The driver boards were adjusted but not zeroed. Hope
to zero it later today.

  The corn east, south and west of the station is tasseling.

Site Visitation Log Entry
=========================

Tech: .sr
Weather: cloudy, windy
Set Clock: N
Trh  IC: N
Baro IC: N
Rain IC: N

 Coments: increased gain a bit on all 3 sonic axes.  T/RH IC results:
 Tsta=27.7, Tass=27.3; RHsta=49, RHass=48  SPO's first visit.

		visit time: 16:30 - 17:30 GMT

  Tower was lowered and sonic zeroed. Steve O. looked at the
signal levels and tweaked them abit. We are still getting
some spikes.

  Since the change in sonic electronic boxes, station 3 "w"
component has had spikes. It appears these spikes are related
to temperature. The spikes occur during the day time when temperatures
start getting over 25C.

An observation recalled from yesterday's visit to station 2:

Several stalks of corn are now tasseling ("VT") near PAM2, especially
on the higher ground.  I counted leaves on 5 plants along the access
trail and got 6,7,8,8,8 pairs of leaves on these plants (the last one
curled up around the tassel).

Site Visitation Log Entry
=========================

Tech: spo
Weather: OVC, light from SW
Set Clock: N
Trh  IC: N
Baro IC: N
Rain IC: N

 Coments: download 191-196, corn developing nicely - ears on "node" 5
 in many plants  plants also "sweating" at leaf/stalk junction

Due to a typo in sonic.config.S, the boom azimuth change on July 3rd of the
pam 2 sonic was not used in the the daily plots.

The S code looked like: 

   if (t2 > utime("1996 jul 3 16:30"))
        booazm <- c(boomazm[1], 214.0, boomazm[3])

booazm was being set, instead of boomazm. As a result the azimuth change from
215.2 to 214.0 was not corrected for in the dailyplots from July 3rd to 
July 9th.

The problem was noted and corrected on July 10th.

John M. called to tell us that PAM2 is transmitting too much power to GOES,
so we switched back to a patch antenna (from a yagi).  Since John had problems
with the patch antenna on PAM2 earlier (which is why the yagi was installed),
I first swapped patch antennas on PAM1.  So, the sequence was:
Station 1:
0951: measured original patch power: 8.7 forward/0.1 reflected
Swapped patch antennas (lost a nut in the process)
0956: measured new (PAM2 original) patch power: No change.

Station 2:
1027: measured yagi power: 7.6 forward/0.3 reflected
1032: possibly a bad transmission, since I was still struggling with
tightening the patch mount
1037: measured patch (PAM1 original) power: 10.7 forward/0.1 reflected

Hopefully, John will keep us advised.

Site Visitation Log Entry
=========================

Tech: spo
Weather: sct Cu; light NW
Set Clock: N
Trh  IC: N
Baro IC: N
Rain IC: N

 Coments: Also did Assman IC.  T 0.2 high, RH ~3% high

Site Visitation Log Entry
=========================

Tech: MM
Weather: cloudy, cool
Set Clock: N
Trh  IC: N
Baro IC: N
Rain IC: N

 Coments: got days 201 to 207, did Assman IC.  Emptied rain gauge--lots
 of mouse turds in bottom--no nest though  cycled gauge power and reloaded
 coef.

Station 2 visit

Offloaded jd201--207 data.

Did Assman I.C.  Results to be posted elsewhere.

Emptied ETI rain gauge, reset power and reloaded coef.

Chopped corn to south of solar power stand.  Batt voltage seems to be
slowly dropping.  Hope this helps.

I have been a bit worried that the Tddiff plots for the last 2 nights show
station 2 not reversing sign, as it did earlier and as the other stations
are continuing to do.  Yesterday, Erik and I visited the site (while taking
pictures).  We opened up the hygro and cleaned out a few bits of biota,
but it appeared to be okay.  We reinstalled it, but also broke the top couple
of feet of the 4 corn plants which had grown up around the sensor in order
to give it some air flow.  This doesn't seem to have affected the data last
night.

Site Visitation Log Entry
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Tech: spo
Weather: broken cu.
Set Clock: N
Trh  IC: N
Baro IC: N
Rain IC: N

 Coments: offloaded jd207--212.  did Assman IC and rain chk.  Also, cleaned
 Trh 50Y with distilled water

Site Visitation Log Entry
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Tech: MM
Weather: breezy, harzy
Set Clock: N
Trh  IC: N
Baro IC: N
Rain IC: N

 Coments: got data from jd212-217.

Site Visitation Log Entry
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Tech: MM
Weather: cool breezy
Set Clock: N
Trh  IC: N
Baro IC: N
Rain IC: N

 Coments: got data jd 217-222

Site Visitation Log Entry
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Tech: MM
Weather: front just passed
Set Clock: N
Trh  IC: N
Baro IC: N
Rain IC: N

 Coments: download jd 222-227

Site Visitation Log Entry
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Tech: MM
Weather: sunny humid
Set Clock: N
Trh  IC: N
Baro IC: N
Rain IC: N

 Coments: took soil sample, downloaded data jd 227-232, crop height, and
 assman

Site Visitation Log Entry
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Tech: MM
Weather: bloody hot and humid
Set Clock: N
Trh  IC: N
Baro IC: N
Rain IC: N

 Coments: downloaded last bit of data jd232--234

Station 2 removed yesterday.  Station went off the air at about 16:30Z.  

cosmos was shut down at aprox. 14:25, freewaves are going down iminately,
everything is close to shutdown. pam 1 will continue to xmit via goes until
station teardown.