Tech Staff Meeting Notes December 7, 2017

The top priority is always repair of down stations.
NM problem stations
ET problem stations

Duty Table updated October 2017


News & Highlights

The Holiday Party is Friday Dec 8.

Jim and Shahram are meeting with TDOT in Nashville on Monday Dec 11 to discuss the bridge instrumentation upgrade final report and future work. Jim will make that point that new projects are welcome but unfunded O&M is not.

CERI still has a large footprint on south campus with empty crates and mostly obsolete hardware. Need to clean it out.


SIS is fully operational for Memphis stations. Now each person needs to keep it up to date for equipment for which they are responsible (from the June 2014 Duty Table):

Make sure Mitch gets an email for any equipment change that will generate a SIS update. Philip Crotwell has an app that let's you do updates on your phone.

CBHT is still showing as active. James will check the ondate for CBHS and use the day prior as the offdate for CBHT. We'll then check to see if this is automatically updated in the IRIS mda. Mitch verified that IRIS was notified on 4/26/17 of our switch to SIS and they said they are now pulling updates from SIS.


Steve will be purchasing a prototype new pc for the nodes. We'll use the existing XP machines to run adsend, but will move all other processes to the new linux boxes. The prototype will have an 8-core atom processor in a supermicro mini rack mount. Power supply is 200W AC but can also run on 12VDC with a max draw of 144W. Its not yet known what the actual operational load will be.

Caps in PC at MTTN are okay. HPNC needs a new pc.



Misc Problems
RVAR.EHE see image (page 1)
LVAR see image (page 3)
MSAR see image (page 2)
BOAR see image (page 2)
WADM see image (page 1)

Misc Problems
X801 - battery/solar
X901 - "

OXF was heavily vandalized. Chris got it going again but it needs significant additional work to harden it. Will assist ASL as needed.

I40 Bridge comms.
Received radios for some links. Need to reestablish contacts with law school and get that link going. Need to get a firewall for aztnworm.

NODE Tasks



Put an iboot at MKTA?



Need to tune the NMAD node receivers (its been a couple decades).

AZTN/HDBR: Need to pull the 200' sensor at the weigh station. Probable water damage.


Flooding in the expansion space has become a problem. A Workorder was submitted and P-plant engineers were on-site to assess the problem. The most likely solution will be a retention wall and removal of material to make the foundation above grave. There are several open work orders. Jim will make a prioritized list and speak with zone supervisor.


GFM and DSNC have polarity reversals. These were affected by the ISIS4 bug but had their canisters replaced last year. Jim reports that the data at GFM was fixed after the canister replacement on Nov 15, 2016. So was something else done later to cause the current reversals? Mitch needs to verify whether its all three components.

Replacement station for GTTN and RBNC being evaluated and permissioned for Southern Highlands Science Learning Center at Purchase Knob (MaggieValley), a part of the Great Smoky Mountains National Park. John found a possible new site with line of site to English Mountain. Need to see what resources are on the Mountain.

Need to remove antennas, coax, and any other hardware from the tower at Greentop. John and Chris will schedule a trip.



Misc Problems
SHTN - timing fixed?

Probable Reversed Polarity
Example from Nov 13, 2017 Example from Dec 3, 2017

CPCT: New cables show the sm sensor has a bad channel and needs to be replaced.

John's updated todo list .


Current camera is not compatible with any current browser. John will see if utility will provide a new one.

Improve RCGA AC power and perform maintenance work on shed.

Move PMTN due to excessive noise and vandalism. The trees at Lone Mountian are too tall to get a signal out. Looking for an alternate site.


New plan for GFM is to keep it at existing location and convert to digital with a trillium compact which enables using the existing vault thereby minimizing the amount of hardware and supplies that need to be hiked in.


Need to isolate the XP box behind a ubiquiti router.

WMTN pit needs to be moved due to erosion.

Freewave upgrades at CPRT and repeater cort went smoothly. The upgrade forces https but be sure to disable the guest account afterward.


AG Network

Need to replace obsolete routers at all AG stations. The ubiquitis are good but run hot and are power hogs.

HHAR needs a bigger solar regulator. The new one should last a year.


The FDL wiki is here:


The seisnet group on umdrive is at You will need your uuid and password.

The seisnet wiki is at You will need your uuid and password.