Tech Staff Meeting Notes July 9, 2021

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

Duty Table updated March 2020


Priorities


News & Highlights

The Fish Fry will be Friday August 13.

NetOpsXI is Nov 1-3, 8-10, 15-17. More info here.

2021 DM was approved by USGS and is grinding it's way through the gears of the university administration. Account number should be available soon. Account numbers for adopted SLU station maintenance expenses need to be changed to the new account when available.

All three NM nodes have 2016 vintage batteries. Need to replace them, 4 each node at $200 per battery.

COVID-19 protocols are lifted beginning July 1:


NMSZ

ISIS5 upgrades are waiting on the enclosures that are scheduled to arrive until the end of July. First round of ISIS5 upgrades are:

MPHB continues to hang; it's an old serial to inernet DM24 system. The sensor hasn't been calibrated in three decades and has been in the borehole for nearly two of them. It is not being archived at IRIS and there is no metadata (Mitch has the original Guralp documentation though it is likely no longer accurate). We discussed whether to turn it off. It doesn't cost anything though isn't useful either. It is a nice borehole in a very noisy location so also not particularly useful from a monitoring perspective. It can be obsolesced as time permits.

SM upgrades (CMG5TD to etna2) are complete except for CSTN (no access due to coronavirus closures).

WALK needs to move, Dave has a new site selected.

STAM needs to move. Landowner is prepping a new site for us.

CWPT needs to move. It doesn't have a digital path and suffers from access and other issues. Jim has a good prospect.

QUAR needs a tower. Trees on the bluff have grown.

NMDown

Data taken from:
/dat1/seisadm/Working/NM/202107/20210705_201356_MAN
/dat1/seisadm/Working/NM/202107/20210708_083518_MAN

Down
GUAM
BOAR
LRAR

Misc Problems
CACT.EHE
HOVM- spikes - mostly unusable
QUAR- spikes and dropouts
NHAR - spikes and dropouts

Make permanent, repair receive mast for WYBT at HOPT install four 52 watt panel.

NODE Tasks

DBB:

MKTA:

LNXT:

The money pit is thirsty again. It failed the load bank test and started shimmying at 60%. We may not need the full 100KW anymore but still need to do better than 60%. Dave noted several maintenace items that can be done to improve the performance. He will complete those and troubleshoot other issues before getting another test.

NMAD:

AZTN/HDBR:

CERI:


ETSZ

NC is next up for digital conversions. These will all be Geobit/Trammel Links.

RCGA needs a telemetry upgrade. This won't work. The station is now closed in SIS. The physical station will be closed and the hardware moved to a new location with less cultural noise and better telemetry.

John found a school near TRYN (Isothermal Community College) that may host internet for us. NC now wants a written agreement and provided a form to request a no-cost lease. Mitch will submit to legal for approval.

GFM has a recurring power problem combined with poor cell coverage. This was repaired but weak cell signal remains. Jim has a new 4G FirstNet cell router on order.

Replacement station for GTTN and RBNC needs a new plan. A cell modem would provide more options.

ETDown

Data taken from:
/dat1/seisadm/Working/ET/202107/20210702_223818_MAN

Down
CSTN
SHTN
CCNC
WMTN2- sporadic
TRYN

Misc Problems
S5NC.HNN

STAR Node

GRBT and DYTN are Tramell links to single radio at Star Mt. The signal fads causing outages in the morning. It ins't likely to get better. The DYTN path is long but solid. Is long and has obstacles. We can either switch DYTN to a 900M link or GRBT to a cell modem. A cell modem is preferred but Mitch would like an estimate for all stations likely to need cell modems so we can plan for the costs to the whole ET network rather than add them one at a time.

Freewave upgrades at STAR. There are about 4 or 5 links to the STAR node that use freewaves. These need to be upgraded to Xetawaves. The configs will require some TLC after the ugprade to get them tuned to the path.

The PC is no longer needed at STAR except for SOH. But those weren't working when the crew was there last month for Centaur upgrades.

John will send the STAR SOH hardware to James to figure out how to send alarms.

Move PMTN due to excessive noise and vandalism. The new site, CATN, is permitted and ready to install.

HPNC Node

Convert all HPNC stations to digital using Geobits and Trammel Links.

MTTN Node Move the atom to the host's rack and remove our rack.


GPS

Bob has DM funding for new enclosures. He has travel and staff support but they need to be installed by the end of the GPS fiscal year on Feb 28, 2022.

Clifton needs the receiver replaced with a Septentrio and a new antenna. Need to make a recon for the telemetry, especially at the school. All the hardware needs to be assembled and mocked up.


AG Network

FCAR has a borrowed T120. The FCAR sensor is in the test vault where Dave found secondary firmware image is corrupt. The manufacturer recommends returning the sensor to have the firmware upgraded (there are two copies to facilitate updates and failure recovery). If it goes back to the manufacturer, then the paperwork needs to be completed to "move" the spare from the lab to FCAR in the inventory.

WHAR can be put back on the local network.

FCAR telemetry upgrade needs to be mocked up and installed. We can then remove the repeater.


FDL

The FDL wiki is here: https://umwiki.memphis.edu/display/FDL/CERI+FDL


MISCELLANEOUS

The seisnet group on umdrive is at http://umdrive.memphis.edu/mwithers/seisnet You will need your uuid and password.

The seisnet wiki is at https://umwiki.memphis.edu/display/CERITech/CERI+Tech You will need your uuid and password.