The top priority is always repair of down stations.
NM problem stations
ET problem stations
FCC license is complete. We're now licensed through 2033 for our analog stations.
2023 DM request is submitted.
Fish Fry will be May 5. 44 people plus 8-10 guests are attending.
Dave took Thomas's El Salvadorian visitors to an analog station, a broadband station and the node at New Madrid.
Need to shut down primary aqms systems for 30 minutes for maintenance. Vacations and the no-change-Friday rule will push this to May 30.
CVTN is down for the current after the Covington Tornado destroyed the school. James will close the current equipment epoch but keep the station open to help avoid excessive downtime for the station. Nothing can happen until construction is well underway or complete at the school.
Discussed NM digital upgrade plan What to do about stations that need major work but are to be closed as part of the plan. Need to have a prioritized list of station upgrades and target the ones near problem stations first. So that as we do the uprades, we can close those nearby that are scheduled to be closed.
2022 DM. U40A upgrade is done. SFTN hardware is mostly ready, waiting on an enclosure but can get started before then. Got the wrong cable and a bad Titan for X40A and waiting on replacements. The others, WLAR and Z41A are built up and ready to go.
HOPT2 needs an antenna upgrade at the node receive. So do PENM and PGVM. Eventually all node 900MHz antennas need an upgrade to allow sharing digital bandwidth. Adjusted the azimuth of the HOPT2 antenna which will hopefully help in the mean time.
We operate 18 cell routers and there are seven remaining upgrades to FirstNet. Two AG and GFM remain and need to be upgraded.
WYBT was orphaned by the HOPT2 digital upgrade. James will close the hardware epoch in SIS and leave the station open for now until a final decision is made on the digital network configuration (i.e. when we decide how many and which analog stations are closed).
Note, there are still 3 ISIS2 stations, TMAR, LRAR, and MTAR, and we now have spare ISIS3 canisters. Should they be upgraded or wait until the digital plan is finalized? (recall ISIS2 suffered from the bad ground a the bottom of the canister.)
Replacement batteries are in house for DBB nodes at Wilder, MKTA roof.
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.
WALK needs to move, Dave has a new site selected.
STAM needs to move. Landowner is prepping a new site for us.
HOVM has telemetry interference at the Luxora repeater. No good workaround. Convert it to digital. Done, got Centaur, I5/titan upgrade Oct 2022.
Both UALR pipe vaults were full of water. Will replace them with a CERI style surface vault.
NMDown
Data taken from:
/dat1/seisadm/Working/NM/202305/20230501_184534_MAN
/dat1/seisadm/Working/NM/202305/20230502_021451_MAN
NM
Down
CVTN
Misc Problems
NHAR - dropping out
QUAR.EH* &.SC* -dropping out
SFTN.HN* - spikes see image
AG
Misc Problems
X702.HHZ &.HHN -spikes
QUAR needs a tower.
DBB:
James will seek advice from John Panzer at ITS on our DBB node subnetting scheme.
MKTA:
LNXT:
Money pit service is complete. Quote for additional work was pricey so we'll do that in-house.
NMAD:
AZTN/HDBR:
CERI:
MGNC needs more solar and a new antenna. Done, may need even more solar.
Need to test the internet at PARI. Done, works great.
RCGA needs to move. John found a City Park in Chattannooga that is a former ammo dump. He's trying to get a permission to do a noise study to relocate the station into one of the bunkers. The city is willing to let us use the park internet. This lead is a bust, looking for a new location.
fgtn needs a solar upgrade. Built up and ready to go. Waiting on a break in the weather.
Replacement station for GTTN and RBNC needs a new plan. A cell modem would provide more options.
Five faulty geobits sent to ISTI. Did we get these back? Yes, John put the
bill on his card.
ETDown
Data taken from:
/dat1/seisadm/Working/ET/202304/20230421_150000_MAN
Down
BCRT.EH* &.HN* -needs new radio
CVVA
Misc Problems
ASTN.HN* see image
VHTN.EHE see image
WSNC - interference bars
CVVA may need a cell modem.
STAR Node
DYTN owners are allowing us to stay. They asked for a load of gravel for the access driveway.
The Dalton link is dead and we're currently using a cell modem. The cell modem is doing a very good job but we still would prefer to use it as a backup not primary. Long story short, Dalton thinks their stuff is working and correct but we still can't connect. Discussed options but the Dalton link is still the best option so need to figure it out and make sure what they have configured is the same as what we think they have configured. John reports, "Mr. Watts is going to let me know the next time he is heading up to Starr Mountain so I can meet him there to figure out what is going on with our connection to their network."
John will send the STAR SOH hardware to James to figure out how to send alarms. If this isn't in production soon, we're going to bail and get something off the shelf. The GX620's need to be retired. What is the status of this? It's almost there.
Move PMTN due to excessive noise and vandalism. The new site, CATN, is permitted and ready to install.
HPNC Node
WSCN noise appears to be a local source not telemetry; appears to be a pump-like source. We would like to identify the noise but it is a heavily used repeater site for multiple parties. There may be nothing that can be done. It's a good enough station that we may need to just tolerate it if a source can't be identified and mitigated. If it is a pump could we offer to pay to base isolate it?
MTTN Node
Move the atom to the host's rack and remove our rack.
VHTN seems to eat sensors. There isn't a pattern in needed repairs.
PIGT is down. Can get to the web page but it's not populating due to no data from the receiver. Have a cable analyzer to help troubleshoot.
see note above on 2022 DM for four remaining AG centaur ugprades.
One of the 2022 DM centaurs was used to temporarily replace the bad one at WHAR. The bad centaur is in the test vault and Jim is working on an rma.
FCAR T120 has to go back to nanometrics. But the new T120 also has excessive long period drift. Both the datalogger and sensor have been ruled out. Jim will get a cable to swap it out. Could still be an issue with wiring and power. Cables are on backorder.
The FDL wiki is here: https://umwiki.memphis.edu/display/FDL/CERI+FDL
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.
