Tech Staff Meeting Notes January 27, 2014
The top priority is always repair of down stations.
NM problem stations
ET problem stations
Duty Table updated July 2013
Al replacement was stall but will hopefully get back on track this week.
The Year 5 seisnet funds are in place.
Figures from discussion in December about the CEUSN TA network are here.
Map of 158 stations planned
for adoption over the next five years.
Map of 65 stations that lie within the NM and SE authoritative polygons.
Some newer radios fail in cold temps (e.g. EPRM, HOPT, SJBM, and WYBT). Replacements are in the works.
Some work remains on the NMAD tower (e.g. a couple shakey preamps) from the failure last month.
Have a new sensor in hand to replace the faulty one at OXF.
We have hardware for two ISIS3 upgrades: ARPT and NWCT.
GNAR needs better insulating berm.
PO for replacing the exhaust manifold on the lnxt generator has been issued.
The LNXT generator is leaking is repaired and the tank filled.
Two more radios for the top of Autozone to better distribute the I40 feeds are backordered.
Need to review and update the power systems in 218.
Backup Liebert is physically in place. Waiting on P-plant to finish the install. We'll wire it so that it only comes on when the generator comes on. The should be a switch like the primary Liebert so that it could be manually switched to line. Chris will get with Bob for placement and with P-plant on installation.
Richardson is being replaced. Construction to began last summer. Richardson will be demolished after the move to the new dorm--possibly sometime near the end of 2014. The current plan is to telemeter both ABB and DBB from SFTN to the WKNO tower on south campus. From there, telemeter the ABB directly to CERI (and get rid of the noisy phone lines). Telemeter the DBB on a 2.4G link to the tower on top of the Zach Curlin Garage then a 950M link from there to CERI.
GRBT needs a new power and signal cable, and a new transformer.
ASTN will get the last Basalt. A new 24V regulator is also in the works that allows more efficient charging of a two battery system.
intuicom radios that came with the Basalt and have USGS property tags were used to repair the CPRT to GTTN link (freewaves don't work well there for some unknown reason). Its ok to separate the radios from the DAS so long as we know which radio with which asset number is where (Inventory is done annually).
ISIS4. ETT, GRBT, RCGA of the STAR node are done and WVTN, WMTN, and LRVA of the MTTN node are next for ISIS4 upgrades. We don't have to have the same gain at each station and can instead, turn it up at quiet sites. Once its set, we don't want it to change.
Mt Gibbs has a lot of RF noise and occasional accessibility issues. We need a plan for replacing the PII boxes in NC with ISIS4 and we should consider breaking up the node into two or three mini-nodes. Can we use the Menlo Park digitizing system?
BRBC--internet down, node inaccessible
BCRT.HN* - see image
Strong Motion Down
GTTN - see image GTTN.HNN is down
We seem to have excessive RT147 problems. Need to follow up with ASL.
GTTN is noisy and would benefit from a quieter site.
GFM needs to be moved to a more quiet and accessible site. Possible target for digital upgrade.
BHT will be decommissioned.
MCTY is down.
Feplacement R9 for PGTX installed.
CVMS needs a new choke ring.
FCAR is getting a new roof at the visitor center. We're temporarily on a cell modem until the roof is finished probably in October. The cell modem doesn't have sufficient bandwidth to stream the HN? channels so we only have the HH? in real-time. It doesn't like to stay connected to the Reftek for some unknown reason--its the same hardware and configs we're using elsewhere.
One 6TD returned, has flat traces. Two others forwarded to England for repair.
NSMP Station List.
Paragould is down.
The seisnet group on umdrive is at http://umdrive.memphis.edu/mwithers/seisnet You will need your uuid and password.