Tech Staff Meeting Notes June 13, 2019

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

Duty Table updated October 2017

Priorities

• Station repair and routine maintenance
• Nori and folkworm upgrades
• Install monument at new GNSS station near Clifton

News & Highlights

Chris McGoldrick will retire as of June 30, 2019.

We will retire cell phone 5152 after McGoldrick's retirement.

USGS funding is in place for our three approved Deferred Maintenance items.

• AQMS upgrade: replace obsolete AQMS systems with new redundant linux/postgresql developed at PNSN. GOAL: Linux/Postgres in production parallel to Solaris/Oracle by the end of August 2019.
• New transfer switch for NMAD and new resets for each of the NMSZ nodes
• 4 ET analog to digital conversions (6 channel) for GRBT, ETT, CCRT, and GFM. Three will stay shortperiod and add a sm. GFM will convert to broadband. Hardware will be Centaur DAS, Titan sm, and a Trillium PH for GFM. Hardware orders are in process now.

USGS may provide 2019 DM funds that would essentially replace all remaining older digital hardware.

NC is reviewing the GFM agreement. Mitch will contact Sue McBean, the park superintendent, to check on it.

The Trimble GPS pods for some Guralps will be impacted by a gps week rollover issue on July 28. Assuming 2019 DM is funded, replacement unit will not be available before then. Site visits will be required.

SIS

SIS areas of responsibility

• NM shortperiod: Dave Steiner
• NM broadband: Dave Steiner
• ET: John Parker
• strongmotion west: Dave Steiner
• strongmotion east: John Parker
• AG network: Chris McGoldrick

XP retirement. ET will be entirely digital by summer 2019 if all goes as planned. We need a plan for NM.

RTCC on Ubuntu 16 is able to get /parameters but fails with /status-control on loopback and RTPD hangs. It works in Ubuntu 18 but openvpn does not. Wait for that fix then leapfrog OS to 18.

NMSZ

NMDown

Now that the lawworm link is stable, Brewer will discontinue the AZTN dsl.

There are 1 of 7 ISIS3 upgrades remaining (NHAR).

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

Strongmotion stations NAIT, SEAR, and NHIN are having trouble moving up the priority list. of the three, SEAR is most valuable. NHIN is probably a fuse but can wait until there is a new obisidian to replace the 5TD.

NODE Tasks

DBB:

MKTA:

LNXT:

NMAD:

AZTN/HDBR: Need to pull the 200' sensor at the weigh station. Probable water damage. There is no budget for this. Should we try to repair the sensor at MPHB and put it at HDAR2 (MPHB is over two decades old, possibly closer to three)? Should we turn off the HDAR2.*.20 channels until the sensor can be replaced?

CERI:

Server room power is unbalanced. Need to balance when three new AQMS machines are racked. Done.

IT scans flagged nori and folkworm, primarily due to apache. Turned it off on nori. Need to upgrade the Ubuntu OS but not while in production. We have four machines for the AQMS linux migration. If we used only two of these using VM for the rt and pp instances, then we'd have two machines to use to upgrade nori/folkworm. Mitch will check. We'll use a two machine config for AQMS and then use the third as development. The 4th will be used for the new nori.

ETSZ

The upgrade at CCRT still has loose ends.

Conversion to Digital

We have 4 USGS funded upgrades, and will have 9 remaining under the Choctaw project. USGS deadline is 1/31/2020 so the Choctaw upgrades are the priority

Need to determine the revised budget and acquire funding.

Geobits are working well

John successfully mocked up two links going into one, then repeated to a final radio. This was with two yagis hooked to the one radio. This is the plan for two stations transmitting to flat gap and then from there to mttn. Had just enough bandwidth to send 6 100sps channels. The web ui for the radios is a pig (use ssh instead) though it works well with the geobit web ui.

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

Need to remove antennas, coax, and any other hardware from the tower at Greentop. John and Chris will schedule a trip.

ETDown

STAR Node

BCRT had an intermittent 40Hz spike.

Move PMTN due to excessive noise and vandalism. John has a site and sent a draft MOU to Mitch. The University did not ask for changes and asked for the WMA director to sign first, its currently in Nashville for approval. A portable was installed and shows no surprises, it should a good quiet site.

HPNC Node

MTTN Node

GPS

New station near Clifton, TN is nearly ready to install. All hurdles have been passed for the permit and it's awaiting signatures. Telemtry is complicated and has to repeat at a Water Tower before getting onto public internet at a local school. As soon as permit is signed, install monument and recon the rest. Bob will order a Septentrio but we can use an NetR9 in the meantime.

Eleven receivers for 2018 Deferred Maintenance arrived. But they consume significantly more bandwidth than the older receivers. Bob is attempting to get cheap radios that provide the bandwidth though the user interface is much less useful and will require more maintenance time. Proposals for new cooperative aggrements are due the end of August at which time more tech staff time will be needed in the GPS proposal.

AG Network

Vilos is not in the allowed list of IP's for AR park internet access. Mitch will check with Cramer on shutting down smeagol and enabling its IP on a third NIC.

Z41A has a leaky vault. It will need to be replaced with a CERI style vault.

HHAR needs a bigger solar regulator. The new one should last a year.

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.