The top priority is always repair of down stations.
NM problem stations
ET problem stations
Mitch will ask Chuck about an August Fish Fry.
2021 DM informal request was submitted and includes 5 of 9 AG upgrades and a new vault for Z41A, the NM telemetry plan, and O&M for adopted SLU stations.
Patrick needs to get a p-card. His application got lost over the pandemic year so he'll reapply. Jim can then turn over resonsibility for the FirstNet cell modems.
Data gaps persist. Gimli and bofur are overloaded. Steve and James will enable new hardware and offload some processes.
We discussed the need to migrate from ipv4 to ipv6. It isn't an issue yet but will gradually have more more v6 devices. Mitch ran into this when Holly went out of town last weekend but fortunately there was a v4 available. We only have a few pieces of remaining hardware that are v4 only; most are dual compatible (though the protocols are not compatible).
Steve Brewer was working with John Panzer from ITS on end points for Eunseo's dark fiber project. Panzer metioned that the switches we use could be replaced by managed switches owned and operated by ITS. That's less work for us and would be connection to Jones Hall, but there isn't a great deal of trust with ITS. We see this in the mac lab and other areas where ITS priorities conflict with ours and cause problems.
COVID-19 protocols remain in place and include:
There are four ISIS5 packages ready to install. Need to get them to Memphis. RDGT is up first. First round of ISIS5 upgrades are:
Attempted the ugprade at RDGT but the hole collapses from wet sand after only about 10 feet. Dave has an idea to attach a sacrificial bit onto the bottom of the casing to push it the rest of the way.
The Centaur/TC upgrade at PWLA is done. The good news is the sand around the sensors appears to have quieted the horizontal noise. The bad news is doesn't seem to be as sensitive to small signals as it used to be. It isn't clear why that's so and it's also true after applying a high pass filter. It may be worthwhile in the future to add a shallow vault and put a T120 in it. We could then put the S-13 back into the pipe vault and add a Reftek to get the three EHx channels back online for comparison.
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.
NMDown
Data taken from:
/dat1/seisadm/Working/NM/202105/20210505_050505_MAN
/dat1/seisadm/Working/NM/202105/20210504_183543_MAN
Down
MCIL.HH* &.HN* -broadband not showing up in waveserver
HDAR2.HN*
HDBT.HN*
MSAR - signal not seismic
Misc Problems
CACT.EHE- drifting
HOVM - unusable - spikes
NHAR - spikes and dropping out
LVAR - spikes and dropping out
QUAR - spikes and dropping out
Make permanent, repair receive mast for WYBT at HOPT install four 52 watt panel.
DBB:
MKTA:
LNXT:
NMAD:
AZTN/HDBR:
CERI:
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. Note from John, "Since we turned up the power at GRBT and got it to connect reliably DYTN has been having problems, previously it was GRBT having problems. GRBT and DYTN both communicate with a single radio at Starr Mountain. I'm wondering if we need to try to balance the strength of the two signals going into the gateway radio at Starr Mountain. It looks like the GE radios give preference to the stronger signal."
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/202105/20210505_014349_MAN
Down
CPCT.HH* & .HN*
BCRT.EH* & .HN*
RCGA
CSTN
SHTN
BCRT.HNZ
TRYN
Misc
S5NC.HNN- spikes
VHTN.EHZ - see image
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.
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.
PIGT is down.
CVMS is down and was reading 70C. James speculated kids at the school were playing with matches and set it on fire. Needs a recon to figure out why it got hot and be prepared to replace a fried receiver.
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.
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.
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.
