Tech Staff Meeting Notes March 15, 2021

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

Duty Table updated March 2020

Priorities

• PWLA Centaur/TC upgrade
• RCGA telemetry
• Ridgeley Cascadia install
• Station repairs
• Preventive Maintenance

Secondary Priorities
• Digital conversions for stations transmitted to HPNC node.
• Upgrade remaining STAR Freewave links to Xetawave.
• CERI and STAR SOH monitoring replacement

News & Highlights

We now have lots of spare Refteks that were replaced with Centaurs. About a half dozen are owned by CERI and the rest are USGS. USGS gave permission to use theirs as spares in the AG network. There are no current plans for the UofM owned units.

NetOps XI planning has begun. It will be fully remote and scheduled form late fall.

S5NC very noisy at long periods and needs surface thermal insulation (e.g. a bail of hay).

Data gaps persist. Gimli and bofur are overloaded. Steve and James will enable new hardware and offload some processes.

COVID-19 protocols remain in place and include:

• Overnight trips are permitted. Avoid restaurant dining rooms and other areas where people gather. Maintain social distancing and wear masks when around people other than those you live with.
• Those who are able should continue to telecommute.
• The following are on the list sent to the college as essential on-campus: Brewer, Horton, Bollwerk, Steiner, Shivers, Marshall.
• Practice vigilant social distancing and hygiene at all times
• Inform Mitch of any telecommuting needs.
• USGS asked to be informed of any significant operational disruptions. They are our backup.

NMSZ

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.

Data gap problems persists. Winston is also affected. Steve an James will bring new hardware online and offload some processes as well as turn off the secondary internal waveserver.

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.

SLU Adoptions are complete.

NMDown

The Cascadia for RDGT and Compact for PWLA are in house.

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

NODE Tasks

DBB:

MKTA:

LNXT:

NMAD:

AZTN/HDBR:

CERI:

ETSZ

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

RCGA needs a telemetry upgrade. It has barely enough bandwidth to keep up.

John found a school near TRYN (Isothermal Community College) that may host internet for us (TRYN is outside the Choctaw license).

CPCT has new GPS conduit, Centaur, and other infrastrucure improvements.

GFM has a recurring power problem combined with poor cell coverage. This was repaired but weak cell signal remains. Need a booster.

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

ETDown

STAR Node

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 comm link at STAR uses the backup microwave to Etowah Utilities where there is a comcast modem. They switched their primary to Athens where there is fiber. We'd have to pay to get on the primary and they're no longer monitoring the Etowah link for SOH. That now falls to us and we need to inform them of issues. How long till Etowah gets fiber?

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

Clifton is installed but needs comms. Needs a site visit to assess health and download data; there should be a year of data if it's been working.

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.