The top priority is always repair of down stations.
NM problem stations
ET problem stations
The Fish Fry will be Friday August 13.
Patrick has a p-card. Needs to pick it up and review do's and dont's, and review with Dave how to process monthly receipts. Jim can then turn over resonsibility for the FirstNet cell modems.
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).
COVID-19 protocols are lifted beginning July 1:
ISIS5 upgrades are waiting on the enclosures that are scheduled to arrive until the end of July. First round of ISIS5 upgrades are:
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. There found a lot of noise in the 0.1 to 0.5 Hz band. James set up a high-pass version and put it on the test well helicorders. We may be able to crank the gain on those filtered channels to restore the visual sensitivity.
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.
NMDown
Data taken from:
/dat1/seisadm/Working/NM/202106/20210613_165115_MAN
Down
MPHB
Misc Problems
HOVM-spikes and dropouts-mostly unusable see image
QUAR - spikes
MCAM.EHE- spikes see image
CACT.EHE - see image
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. 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/202106/20210613_092300_MAN
/dat1/seisadm/Working/ET/202105/20210526_202918_MAN
Down
CSTN
CCNC
TRYN
RCGA
SHTN
Misc Problems
GFM - sporadic down, usually early in the morning
S5NC.HNN - 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.
