Tech Staff Meeting Notes May 7, 2014
The top priority is always repair of down stations.
NM problem stations
ET problem stations
Duty Table updated July 2013
The Fish Fry may be postponed to May 14.
Seisnet LSP closes May 8.
Discussion on ANSS policy documents
NetOpsVII will be August 14-15, 2014 at Caltech. Topics are focused on computer professionals (e.g. AQMS, products and services, etc). Website is here.
keep this note from April meeting
We discussed analog upgrades using IDCR. We'll purchase hardware for four ISIS4 in ET (RBNC, WSNC, CCNC, and MGNC) for about $7300 and four ISIS3 in NM (complete mkta node) for about $8700.
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).
Install freewave serial reset at bb stations.
Data taken from:
PARM -pump? cows? see image
SJBM see image
We have hardware for 5 ISIS3 upgrades: Relocate and reinstall PLAR plut 4 additional TBD.
GNAR needs better insulating berm.
PO for replacing the exhaust manifold on the lnxt generator has been issued.
Telemetry is now all point-to-point and works better but still gets a lot of interference. Available bandwidth was very poor during the Beale Street Music Festival and improved afterward suggesting we're highly susceptible to cell phone traffic downtown.
All recorders on the bridge have been reconfigured and are storing 15 minute 200 sps mseed files in a rotating buffer. Steve is working on lower sample rate real-time slink feeds.
Recorder 5 has a bad board and has 24 channels. Twelve of them are for accelerometers and the others were for rotation. The rotation sensors are not functional so we only need 12 on this recorder. Kinemetrics provided binaries so the recorder can operate without the bad board.
Recorder 3 needs to be reinstalled.
Need to review and update the power systems in 218.
Backup Liebert is engergized. Need to configure and test.
New plan has the DBB goingh throug Wilder and the ABB through south campus. There is not enough room on the Wilder tower for both the ABB and the DBB. The abb will make the direct shot from south campus to CERI.
ABB will be completed the week of May 12 and the DBB this summer.
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.
ISIS4. VHTN, WMTN, and LRVA of the MTTN node are next for ISIS4 upgrades. Need to replace the 24V regulators at power hungry reftek sites.
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?
Data taken from: /gaia/smeagol/dat2/Working/ET/201405/20140506_155020_MAN
BRBC internet still down affecting
CCNC GFM MGNC RBNC SMNC TRYN TVNC WSMC
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.
Pick up BHT hardware.
Internet, accessibility, and high noise inducing RF requires we move the
MGNC central receive. John presented several possibilities and investigated
both the PSN digitizer and the Menlo Park system. We determined that eventually
we'll need to convert all nodes to the Menlo Park system so that we can obsolesce
XP. But for now, we need to reconfigure North Carolina as in this figure.
Upgrade WSNC to broadband or S-13/Reftek and cell modem.
Rotate CCNC to repeat through fgtn and add to MTTN node.
Establish new node at High Peak.
Transmit MGNC to High Peak.
Repeat TRYN through MGNC.
Transmit GFM to High Peak.
Transmit TVNC to High Peak.
Transmit SMNC to High Peak.
Next time each station is visited, need to note model and serno for Smalley.
Comms with stations that telemeter to Lake County are out. Needs a site visit.
CCAR- Had water in vault! Put on watch list. Next visit open Vault. Check all vaults on next routine service.
Chris Powell is helping to update the equipment list.
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.