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GPS Site Problem History
Note: sites with their site table cell painted orange have current problems
Site Begin Date
YYYYMMDD
Problem End Date
YYYYMMDD
Solution
bill 20050907 date estimated. day long data files have a lot of messy data in the SV plots. due to 09/07/2005 fire?
bkap 20050317 No communication(busy signal). -Choke ring non-operational. -Waiting for replacement choke and netRS/CDMA upgrade.
cbhs 20040915 Unable to contact receiver. Site visit finds that the solar panels have been stolen. Receiver enclosure's door fell off (rusted pins). Pins replaced.
ccco 20050420 autlcn throwing out all obs. notified usgs-p. 5/12/2005: .6 diff globk vs. model. loosened constraints to accomodate.
cdmt 20050923 Power problem noticed by missing or short data files. Suspect batteries are not holding charge all night. Chronic problem.
cmp9 20040422 rock pin damaged
coma 20060615 .27 lat adj in gamit; bar3
corx 20050612 no data since d.o.y. 161. able to ftp to pc, but can not vncviewer into it to determine problem. 6/16/2005: e-mailed arturo torres at colef university
cpbn 20030107 Site vandalized.
dyhs 20040401 date estimated. large scatter in time series
ese2 20070116 large offsets in gamit processing
esre 20000103 no data being downloaded. no communication to site
esrw 20000103 no data being downloaded at site. trimble firware has y2k bug, file times and names are incorrect, software can not download files as a result
gnps 20050902 Phone line down. Possible broken modem. Slated for PBO upgrade but CDMA has no reception. Working on alternate com (vsat) in near future. Will try to repair phone communication within a month.
gras 20070407 large offsets in gamit. low number of actual observations.
gvrs 20041119 gamit autlcn throwing out most/all obs. teqc indicates clock slips where some satellites had an mp1/mp2 slip
i40a 20030219 site is down due to stolen panels.
lmut 20040401 date estimated - autcln throwing out all obs. sent another e-mail to bob smith with ebry in 4/2005. wu-lung chang with ebry followed up, and then frederick blume from pbo says on 4/22/05: A further update on this - a remote reset of the receiver didn't change the behavior, it still shows clock resets per hour, well above Trimble's spec of 4/hr for the 4000SSi. This is a hardware problem that Warren can repair here in Boulder, so we will obviously need Dr. Drobeck to saddle up a snowmobile to the top of Lake Mtn. with a replacement receiver.
lphs 20050523 north time series drift; bad antenna? notified usgs-p
mhms 20030701 north time series shows offset or increased noise. Keith Stark, 10/09/2003: Aris visited MHMS yesterday and found that they placed an 8' fence within the bollards and a new bungalow was placed not much farther away. This was all done in the last several months. Also, they have taken down our freewave antenna while doing roof work. It should be back up next week.
msob 20070331 Network problems
ndap 20040930 Unknown comm problems. Init string? Site is down for a couple days then comes back on line.
plo3 20060607 .10 m rad adjustment in gamit, commented out of net5
ppbf 20050509 unable to connect to modem. 05/12/2005: cecilia whitaker met verizon tech at site. unable to repair line, problem is with cable to facility. will return to site tomorrow. 07/26/2005: Derik Barseghian reports he is still working with verizon, who were at site a few times last week and may bring in additional help.
ppt1 20060609 .0937 rad adj in bar1
roch 20060301 Phone line busy signal. No data transfer since GPS day 58.
sacy 20030301 noisy time series begins around this time. art andrew, 06/01/2004:SACY has a visibility and multipath problem. Last week around 4:00 pm, the SV count goes down to @ 6 SV's at all sites but SACY, which goes down to 4 SV's. I've noticed lately around that time that real-time positions have not been computed due to this.. Not much you can do to this site other then block off the immediate parking spots around the antenna. Very poor location.
scip 20050912 Unable to connect to slave radio. Still unable to connect (09/23/2005). Still unable to connect (11/17/2005).
sedr 20050524 .2 rad adj in pan1 net starting 2005 144. loosen cons
sio3 20051225 abnormal values from met pack. attempted to install new unit on 01/06/2006, corrosion prevented this. waiting on new arm unit from seth gutman
sio3 20070905 classroom renovation where pc is located. pc died, moving disk to new pc. new os required for security reasons.
skyb 20010724 Site vandalized. SCIT was crushed, grafti on enclosures, and stolen solar panels. Small crack found in the base plate but it's still usable.
spmx 20050812 Receiver not tracking data. 08/19/2005: Antenna cable fiddling by Javier Gonzalez.....receiver tracking again. however, getting dc ant overload error. provide javier with new ant, cable and lightning arrestor Antenna cable fiddling by Javier Gonzalez.....receiver tracking agai
7odm 20001130 No Telecomm 20010823 Installed a yagi stacker kit, and pointed the antenna to MSOB.
alpp 20030714 gamit autcln program throwing out observations. teqc shows high number of cycle slips. increased noise in time series since early 2003. 09/24/2003: loosened constraints. 12/03/2003: 10 cm vertical adjustment in gamit. removed from processing 20040730 antenna replaced
ammn 20001129 no data pushed to us since doy 333 20001207 data are now being pushed
aoa1 20030404 igs mail 4341: roof repairs at the AOA facility in Westlake Village, Calif. will be ongoing until at least Monday, April 14. During the time of the repairs, the antenna cable will remain disconnected. No changes to the mount or antenna are intended as a byproduct of the roof repairs 20030413 data flow resumed
arm1 20040623 PM. Discovered reduction in the aquisition of satt. 20040623 Replaced antenna w CR5 1999 1845
arm1 20060623 bad rinex file - arm1/2 mixup? 20060623 pj removed files from archive, 01/30/2008
arm2 20010708 Find arm1/2 completely powered down because of insufficient solar power (dirty solar panels); I turn arm2 completely off so that arm1 can remain powered; solar panels must be cleaned, lexan cover must be removed and yagi antennas must be oriented horizontally and placed below the solar panels 20020130 We installed two extra solar panels.
arm2 20020221 No telmetry. Possible power problems. 20020307 I bypassed the Array breaker.
arm2 20060524 10 m offsets in gamit. not sure if these are arm1 data 20060623 removed files from archive
avry 20030605 time series show potential offset in u component around this date. jump of 11.3 mm on 6/13/2003 detected by matt su comparison utility. significant movement in north component of time series begins in 5/2003,but this may be stronger-than usual seasonal motion 20030912 movement appears to be seasonal. untoggled loosen_constraints field in processing db
azry 20000406 Connected to site after abnormal modem noises, but could not communicate with receiver 20000413 Receiver had lost init. string and modem option. Entered string and turned on option.
azu1 20010625 Broken JPL radome; replacement with a SCIGN radome and antenna adapter w/ tie required 20040805 Installed SCIGN short Dome.
azu1 20030210 Classroom renovation has resulted in severed phone line. Call Ken Simon (AUSD) to resolve. Site still has power. Receiver has been set to 24hr/2min session for manual download. Receiver said it was tracking 0 SVs; unsure if connection/cable going to monument is still good. Antenna still needs a radome. 20040729 Installed ethernet switch and PC104 Computer.
bbry 20011123 No communication with site; modem picks up, but no connection to receiver 20011123 Toggle power on receiver
bbry 20011223 No communication with site; modem picks up, but no connection to receiver 20020108 Toggle power on receiver
bemt 20011115 No communication to site from BEARMAT 20011126 Tighten connector on antenna cable yagi side
bemt 20011207 No communication to site from BEARMAT 20011218 Found Receiver locked up with illegal instruction message on LCD. I replaced the receiver.
bepk 20010426 Freewave mode currently 6; must be changed to mode 4 20010511 Freewave mode changed to 4.
bepk 20070403 large gamit offsets for 2007/093. 20070409 removed from archive and re-collection
bgis 20010602 Phoneline down and modem does not pick up. 20010606 Pac Bell technician repairs phoneline.
bill 20000725 busy signal on line, or unable to communicate with receiver 20000810 phone line repaired by phone company visit; met with facility personnel
bill 20001002 modem answering, but can not communicate with receiver 20001003 no changes, but receiver is now communicating
bill 20050406 no answer when dialed 20050411 data are coming in
bill 20050713 no data. cecilia whitaker, 07/25/2005: problems with rt conversion. 20050726 data are coming in; station is now streaming real-time data
bkap 20001220 No communication with station 20001229 Turned on power strip/surge suppressor
bkap 20010910 No communication with station 20010915 Phone technician repaired an "in and out" problem on the line.
blsa 20031206 gamit throwing out all obs 20040227 problem no longer occurring
blyt 20000822 no dial tone on phone line, lightning event 20000907 phone company repaired line after repeated requests/visits
blyt 20001007 power surge destroyed modem, receiver. no report yet on antenna, battery enclosure equipment 20001025 replaced damaged receiver
blyt 20010809 receiver not tracking. dale hopkins indicated lightning event had occurred. receiver giving loud continuous tone. dale cycled power, receiver gives antenna DC overload error, but is tracking. keep eye on data 20011204 data appear ok
blyt 20050817 modem does not answer when dialed. 08/22/2005: asked cecilia whitaker to investigate problem. 08/23/2005: dale hopkins indicates no power on receiver, modem. 20051110 site is back online
bmry 20021030 unable to connect to modem - no answer when dialed. 11/26/2002 - Nancy King, via Brian Hess, reports that site has been sold to Beaumont school district, power is off for several months. Brian Hess will handle permit conversion. 02/04/2003: talked to Joe Pistilli, new contact, he said he is having problems running power cable through conduit, and still need s to transfer phone line to new dmark inside building. two more weeks and he will call us. 04/10/2003 update: verizon will visit site on 4/15 to perform dmark move. joe has run power, will run phone next week. need to re-connect (and likely replace) batteries. 20030417 phone, power lines are ready as of 4/16. Aris replaced batteries.
bran 20011122 Modem not answering. 20011128 Called pac-bell to repair phone line. AGA meet pac-bell at the site and helped repair phone line.
bsry 20011126 No communication with site 20011127 Set session programming to 30 second interval rate for 24 hour file, toggle power on receiver and modem
bsry 20020522 Paul Jamason: added offfset after filtered series stopped appending. observed drift in timeseries and many filtered outliers removed. filtered series stopped appending again on 2002 308. antenna replaced 01/07/2003, phase center shift noted. 20030107 antenna replacement
btdm 20030712 Receiver stopped tracking on day 193, 2003. Receiver still not tracking even after reset of internal and external memory. 20030716 Swapped in new UZ receiver.
bust 20060623 .4 m rad adj in bar2 gamit network 20060630 sunil bisnath: the BUST problem of DOY 174 has disappeared in subsequent days. Closer inspection of the UNAVCO DOY 174 RINEX file show different entries than our manual TEQC conversion of the raw file we downloaded. Processing of the TEQC converted raw file gives expected coordinates for BUST. We have asked UNAVCO to verify the conversion of their raw file.
cact 20030316 unable to fully connect to site via freewave 20030319 connecting now
carh 20041207 Communication to telemetry buffer at CARH ceased. No data flowing. 20041208 Ashtech AC power supply swapped.
cat1 20030123 Weird data has come in from CAT1 over the last few months. Rcvr displays "Antenna Overload" warning. Changed receiver, and still got warning occasionally. Antenna cable needs to be replaced and run through conduit. Bison come through the area occasionally, so it would be a good idea to protect the cable. In addition, the antenna could use a radome to protect it. 20030519 Replaced antenna cable.
cat2 20030529 teqc shows no observations in rinex files 20030608 receiver replaced
cat2 20031204 I was viewing various screens in RTKnet, I noticed that the data stopped streaming from SCMS and CAT2. I never selected "reset receivers" or anything like that. This morning we visited SCMS and the baud rate was indeed set to 300. That site is fixed. But not CAT2 which is located in a remote area on Catalina Island. I decided to shutdown GPSnet because I cannot risk this problem happening again. We have seen in the past that when GPSnet is initialized, every so often the baud rate at an OCRTN site will get reset from 56,700 to 300 bps. This stops the flow of data and the only way to reset the baud rate is to visit the site and manually set it. This has been reported to Trimble numerous times but they've never admitted that it's their software doing this. 20031210 john unwin travelled to site and manually set baud rate using laptop with commander software
cbhs 20000701 Site's communication is down because of remodeling of phone closet at school. The site is manually downloaded until construction is finished. 20010515 Site's communication switched to freewave.
cbhs 20010921 Unable to contact receiver 20011001 Swap bad receiver. Receiver failed with "blue screen of death" and a low hum.
cccc 20011002 Unable to contact receiver. 20011006 Unknown solution. Receiver may have recovered on it's own.
cdmt 20010404 Power problem noticed by small data files 20010420 Additional solar panel added.
cgdm 20010831 Unable to connect with radio to download data from WLSN. 20011019 Replace faulty receiver.
cirx 20011006 Phone is busy. GTE tech. visits and finds problem inside of enclosure. 20011011 Failed receiver; making a very high pitch noise with "Main Channel Load" error. (svanwyk)
clar 20011024 Site not coming in. 20011106 Completed battery backup upgrade, and installed two new batteries.
cnpp 20021102 missing or short data files. pj visited site, 06/17/2003: array and solar controller voltage 13.7, battery voltage 13.1. replaced batteries. aris recommends removing panel protector, but only had time for battery swap due to closing of facility. 11/20/2003 update: after months of full data files, short files are appearing again. schedule trip to remove cover. 11/21/2003: keith indicates problem could be crestline download hub 20031215 keith stark: I went to MSOB yesterday and repaired the problems at the hub. The school has repaired the networking problem and I have gotten the machine back on line
cnpp 20031219 no data from site 20031229 removed cover from panels. cleaned accumulated dirt off panels.
corx 20001117 unable to ftp to download pc 20001120 now able to ftp to pc
corx 20001201 unable to ftp to download pc 20001207 pc re-started?
corx 20001216 unable to ftp to pc 20001218 pc re-started?
corx 20001219 unable to ftp to pc 20010112 pc is powered up
corx 20010112 highly variable timeseries. satellite signal strength is poor - likely a bad antenna 20031112 swapped antenna
corx 20010126 unable to ftp to pc 20010129 pc was powered off. this problem has persisted after removal of suspected surge suppressor
corx 20010326 unable to ftp to pc 20010326 pc ok
corx 20010615 unable to ftp to pc 20010619 bad router fixed
corx 20010703 unable to ftp to pc 20010710 able to connect, unknown soln
corx 20010719 unable to ftp to pc 20010831 able to connect now
corx 20010917 unable to ftp to pc 20010921 able to connect
corx 20011104 unable to connect to pc Action: PJ emailed Arturo T 11/7 20011113 power failure caused problem with router. router problem fixed.
corx 20020516 unable to connect to pc 20020521 bad router fixed
corx 20020828 unable to connect to pc 20020831 data are coming in to sopac
corx 20021227 unable to connect to pc 20030107 arturo says: The last two weeks of december we were on vacation and during that time we had a couple of brownouts. When I cameback on january 6, I checked the PC and I turn it on, so it should be > working now
corx 20030424 unable to connect to pc. 4/28/2003: arturo indicates there was a problem with an ethernet link, now fixed. I am now able to connect to pc, but unable to connect to our gps site over the radio connection. notified arturo. 04/30/2003: arturo confirmed connection to radio from pc. checking on antenna. 20031111 radio was locked up. cylced power on receiver.
corx 20031114 receiver filling up with data. unable to modify download script to delete yesterdays files without deleting todays 20031119 changed observation interval to 30 seconds in anticipation of future real-time conversion
corx 20031227 no data downloaded for days 360-363. 20031230 event log shows pc was turned on this morning. powered off for christmas?
corx 20040103 unable to ftp to pc. sent e-mail to arturo torres at colef university. 20040107 pc is back up. event log indicates pc was turned back on earlier today
corx 20040125 unable to ftp to pc. sent e-mail to arturo torres at colef university. 20040126 arturo said the pc is now accessible
corx 20040219 unable to ftp to pc. sent e-mail to arturo torres at colef university. 20040219 arturo said the pc is now accessible, power outage occurred
corx 20040323 unable to ftp to pc. sent e-mail to arturo torres at colef university. 3/29/2004: able to ft to pc very slowly, but dir hangs. traceroute show slow connection in mexico. e-mailed arturo 20040402 data are coming in now
corx 20040513 unable to ftp to pc. sent e-mail to arturo torres at colef university. 20040517 data are coming in now
corx 20040625 unable to ftp to pc. sent e-mail to arturo torres at colef university. 07/06/2004: able to ping, ftp connect is very slow, traceroute shows long delay at another colef server. sent e-mail to arturo. 20040706 changed ip
corx 20040902 unable to ftp to pc. sent e-mail to arturo torres at colef university. 20040904
corx 20041008 unable to ftp to pc. sent e-mail to arturo torres at colef university. 20041009 arturo torres: power outage resolved
corx 20041215 problems communicating with receiver. getting checksum error on screen 8 errors. able to communicate on additional attempts, but file downloads are failing with checksum errors 20041216 manual downloads on 12/15 suggested temporarly telemetry problem that resolved itself
corx 20041221 unable to ping pc. sent e-mail to arturo torres 20041230 able to connect to pc now
corx 20050123 communication problems with receiver, getting bad checksum errors, various communication errors 20050301 date estimated, problem fixed itself
corx 20050607 unable to ftp or vnc to pc, can ping. e-mailed arturo torres at colef, 06/08/2005. 20050608 data coming in
coso 19990726 After receiver swap for firmware upgrade and gps week rollover compliance communication was lost via freewave radio to the receiver. Local site contact made swap. Local site contact confirmed freewave-to-freewave communications seemed ok. Problem could be in the receiver programming related to modem setup. 19990728 slave freewave baud rate was set wrong. unknown reason
coso 20000101 standalone egads not deleting year 2000 files 20000120 installed egads v1.10, did not work. installed basic script to download and delete files using ashcan
coso 20000911 files coming in late. asked steve b. if pc time problem, he said no. checked fat vs. file times, looks like pc time set wrong. also, fat and sum files are being created every minute 20000913 unknown - steve did not indicate what he did to solve problem. probably fixed pc time
coso 20010102 remote pc running download program but not obtaining data - comm problem? 20000104 receiver was powered off. cycled power
coso 20010426 Freewave and receiver baud rate at 38.4K 20010430 unknown
coso 20020111 no data since day 010. keith stark says: We have lost our ftp link through the military firewall. I am currently installing the new version of egads on the coso linux box since it does not need the ftp port open. I should have it working again in the next several days 20020206 data are coming in
coso 20020215 unknown, no info. from usgs 20020225 unknown
cotd 20020517 building where equipment enclosure is located is having asbestos removal performed. moved enclosure to storage until re-occupation date in august 2002. re-installed equipment enclosure 11/2002. no power/phone currently available. trailer still blocking antenna 20021205 electrician ran power to enclosure, phone co. ran phone to enclosure during 11/2002. i re-installed rx, modem and powered up site
crbt 20011101 Communication with site is down after weeks of poor connection to site; visi to site on 12/07/2001 by J. Galetzka indicates that reciever was struggling at 10.3 volts and that the LVD had NOT triggered; batteries individually tested for voltage, but all carry same charge of 12.3 after charging by truck 20011217 Swapped out all four batteries and the ASC solar controller; appears that the old solar controller's LVD was faulty
crhs 20010501 Schauer power supply is broken and needs replacement 20030401 Installed 12VDC Battery Backup System.
crhs 20011211 No AC power to the site. 20020212 Fixed power problem with school electrical guy.
crrs 19990729 Communication with the receiver or modem seems to have failed. In egads or cgremote, error reads: ReadRXID: error -8 reading port Error 1 from ReadRXID 19990811 unknown
csdh 20030911 broken phone line 20030925 replaced telem with freewave shot to vtis
csn1 20011005 An open was found on the phoneline. PacBell tech. was unable to find break. 20011017 Site converted from phoneline to freewave.
ctms 20011123 No communication with site 20011124 Reset session programming to 30 second interval for 24 hour file, toggle power on receiver and modem
cuhs 20010805 Low SNRs on all channels. 08/2003: loosened constraints in sopac processing. 20040921 unknown. date unknown, reflects date of this solution entry.
desc 20060311 Station down. No data is flowing and not able to telnet to radio nor ping Leica. 20060313 Station took near-field lightning strike. Replaced PolyPhaser lightning arrestor for Afar Radio and restored connection. RF characteristics post-strike/post-arrestor-replacement match install conditions.
desc 20060815 Station down. No data is flowing but am able to telnet to radio and ping Leica. Visit scheduled for 8/21/06. 20060821 Leica had not lost its stored parameters, however a re-entry of parameters did not restore data flow to CLP and RTD. I power cycled the Leica GPS receiver and then data flow was restored to CLP and RTD on geodrt1.
dhlg 19991215 start date estimated - modem communication problem, beeping sound within modem handshaking sounds, unable to connect to rx. 20000118 changed phone jack used from #1 to #2 (connected to sprinkler timer, which was reprogrammed accordingly)
dhlg 20000128 modem communication problem again, beeping sound within modem handshaking sounds, unable to connect to rx. 20000225 Phone company identified problem (did not explain) and fixed it. Normal comm. resumed
dhlg 20001024 modem not answering, or unable to download files 20001027 steve bralla called phone co., they did something to line
dhlg 20011220 automated download not working. manual download often fails during file download 20020110 deleted several files off receiver so data could be downloaded within 3-hour window on phoneline we have. requested longer window from steve bralla, no reply yet
dhlg 20030213 no answer from modem at site. steve bralla reports connecting two days ago but that there was noise on the line. last day of data coincides with day of rain at site. merlin will cycle power on modem, rx. 20030303 data are coming in
dhlg 20031112 modem does not pick up. steve bralla indicates 3 power failures last week. receiver likely stayed powered up, but modem did not, since it is not on backup power. this means it did not get initialized by receiver when it powered up. merlin will check site today 20031120 merlin cycled power. files are coming in now
dhlg 20031215 steve bralla reports problems with modem download during his window. paul jamason indicates (incorrectly) that scign has switched to radio downloads. steve removes scign phone line to timer, and timer during 12/16 visit. 12/17: glen offield reports that modem is still being used. steve will ask local contact to re-install timer. 12/22: steve indicates he is unable to download data from site due to continued line problems. Steve will continue to look into problem 20031230 data are coming in
dhlg 20040523 data not coming in. static on line when dialed. able to connect but not download complete file. e-mailed steve bralla regarding probelem. 05/25/2004: steve also reports problem with line, will visit site this week 20040526 data are coming in. steve bralla: phone repair tech has told me the problem is work hardened/broken lines, so the connection could be bad when the wind is shaking the lines.
dhlg 20040604 problems connecting to site. 6/9/04: informed steve bralla. 6/10/04: able to connect manually, downloaded some files. 6/11/04: unable to connect. steve bralla contacting phone company. told yehuda, glen about problems, glen will get re-started on radio deployment. 20040614 data coming in
dhlg 20050921 data are not coming in; lightning strike in area knocked station out of commission 20051004 site is back online
dshs 20010919 Freewave needs to be installed. 20011016 Installed Freewave data radio.
dshs 20040101 noisy neu time series; e time series shows spurious trend. date estimated. bad antenna? 07/06/2004: notified keith stark. 20040630 Damaged dome replaced.
dssc 20000907 busy signal on phone line 20000919 phone line surge suppressor blown after lightning; added new phone line suppressor
dssc 20031231 unable to connect to receiver after connecting to modem. problem with radio shot and/or equipment in enclosure? jack robbins, facility manager, indicates no power problems there. 20040127 dead schauer battery charger. replaced charger with truestat unit. replaced batteries due to age.
dssc 20041025 Unable to connect to modem. 20041101 station not operating - no power. lvc had activated, john reset. restart voltage may be set too high, but did not adjust settings. had to cycle power on modem and rx to get telem to work. site owners described power failure one week ago, this explains current problem but not earlier ones (unable to communicate to site and then to modem)
dssc 20041104 able to connect to modem, but not to receiver. jeff genrich visited site 11/9/04, power on. jeff later reports: at that time there was no A/C power for the line that supplied the site and a furnace in the adjacent building. The maintenance guy, Sean, I went around with checking out the various power panels, couldn't find the right circuit. They said they would call an electrician the next day to fix it. It seems that A/C power has not been restored (and hence the batteries are dead) to the proper circuit. To get an update on what's going on, call the Facilities Manager at 951-659-6062. His name is Rylan. 11/23/04: power back on at site after being off. batteries at 12.7 V. host reports ac issues had been resolved 20041123 replaced lvc, batts, charger
dyhs 20020108 Antenna cable and conduit cut during school project to enlarge a pond in the garden plot 20020124 Moved old conduit and replaced conduit that was damaged.
dyhs 20030618 Phone line problem somewhere at the school. 20030722 Repaired phone line.
dyhs 20040524 Phone line cut during construction. Maint crew will install new line shortly. Garden has overgrown and is surrounding as well as is higher than the dome. 20040622 Foliage removed. pj added stop date, 09/21/2004
ecfs 20010712 Antenna or related equipment failure. Site is not recording any data. 20010815 Receiver exchanged; old receiver indicated it had no memory left despite having only a standard daily file and several small files logged
edpp 20020221 No telmetry to site. Repeater (ARM1/2) experiencing power problems. 20020307 The repeater at ARM1/ARM2 had power problems.
edpp 20020827 high number of phase slips in data 20030729 receiver swap
ese2 20020215 power issues 20020314 unknown
ese2 20030423 no data being pushed. update, 05/15/2003 cecilia e-mail: These two sites have been down due to a problem we had with the implementation of RTD, where it was turning off the other com port, the one our field crews use. This is now fixed on ESRW. ESE2 will be fixed by June 6. The intermittent data was due to points in time when we were problem solving and had the stations working for RTD but not for the Trimble side of things. I will sent you all the data I have later today 20030612 data are coming in
esre 20001030 unable to connect to esre from download pc at facility 20001213 unknown - moved master radio, antenna cable in equipment shack
esre 20010112 no data pushed from pc at site 20010210 data are being pushed - new master radio in use?
esre 20010718 no data pushed from pc at site 20010816 installed new master radio. could not download during day (interference?) but data are now downloading in evening
esre 20010918 no data pushed from pc at site 20011012 unknown
esrw 20000203 no data being downloaded at site. 20000208 Cecilia Whitaker had copied new version of eastside.pl download script to wrong directory. Moved to correct directory. Antenna cable had been removed from freewave, re-connected.
esrw 20001204 no data being downloaded at site. 20001214 modified antenna cable to master radio connection
esrw 20010115 no data being pushed from pc at site 20010210 data are coming in - new master radio in use?
esrw 20010511 no data being pushed from pc at site for esrw only 20010524 unknown
esrw 20010716 no data being pushed from pc at site. cecilia indicates problem with receiver 20010816 see esre
esrw 20010918 no data being pushed from pc at site. 09/25/2001: cecilia whitaker says that wincron window not open on pc. 20011012 unkown
esrw 20011218 no data since day 346 20020123 data are now coming into sopac.
esrw 20020219 no data since day 049 20020227 unknown
esrw 20020904 no data since day 243. cecilia reports downloading data on pc at site, but data are not getting to sopac 20020906 unknown, data are coming in
esrw 20020920 no data for esrw, ese2 since day 260. 20020923 unknown
esrw 20021017 no data for esrw, ese2 since day 289 20021029 cecilia whitaker indicates computer problems are solved
esrw 20021114 pc dead, will be replaced 20021121 data are coming in
esrw 20050325 gamit autlcn 1020 throwing out all obs. notified cwhitaker. 20050726 receiver repaired
ewpp 20011123 No communication with the site for the last 10 days; modem not picking up; visit site and toggle power--modem initialized and has dial tone, but apparently this doesn't solve the problem 20011129 Recent implementation of hourly download software caused the receiver to lock up. Toggling power on receiver and modem, and setting session program- ming to 30sec/24hr seems to do solve the problem
ewpp 20020401 No communication with the site; visit site and find baud rate on port A is 9600, not 38400. 20020406 Change baud rate on port A to 38400 and reinit receiver and modem. Modem picked up when I called into site using my cell phone.
fvpk 20001217 busy signal when dialed 20001227 phone line no longer busy
fvpk 20001228 busy signal on phone line 20010111 found no dial tone, 01/05/2001. pac bell found problem down street, 01/08/2001. john g. re-entered lost init string, 01/11/2001
fvpk 20011005 no answer from modem at site. 10/10/2001 visit: phone line has likely been cut due to digging near drop at City Maintenance Yard at 2310 Placentia. Site is to have radio installed for OC project. 20011016 unknown. city of costa mesa and pac bell worked to fix problem
fzhs 20010312 Power is not working at site. 20010404 Power restored. Reset AC/DC breakers at site. I have entered this into the SIM 6 times and I hope it works this tme and ends up on the Problem solved page.
fzhs 20030117 Potential receiver memory problems. Screwy receiver FATs obtained via sharc. 20030206 Swapped in new receiver
fzhs 20031007 Session programming occasionally corrupted. Lingering issues with buggy firmware. Will be updated at next visit. 20040921 unknown, date reflects date of this entry
gdec 20020215 Make site visit to investigate why freewave communication doesn't work. Found receiver powered down (toggle switch still in ON position) upon visit to site. 20020215 Touching the front panel activated the receiver, but notice that right side of the screen is dim. Decide to swap receiver as a precaution due to the remote nature of the station.
ghrp 20010805 Data not coming in via MSOB. Poor radio link between MSOB and MLFP (GHRP's repeater). 20010820 Radio path changed by JG.
ghrp 20031113 Data not coming in because site has lost power due to the resent fires in socal. 20040510 unknown. pj estimated date from rinex data on archive.
glrs 20001113 solar panels stolen repeatedly. gradient will convert site to ac, 02/2002 20020626 iid ran power to site. gradient converted site to ac. jamason turned on breakers. batteries would not charge beyond lvc cutoff, installed ac dc converter temporarily
glrs 20020629 high number of ionospheric delay (phase) slips in data 20021024 replaced receiver
glrs 20021218 unable to connect to radio at site 20030110 iid fixed bad jumper on buzzing transformer on nearby pole. battery charger also bad, replaced. gradient had used the non terminal-strip version of the battery charger
glrs 20051008 equipment failure suspected. nicole with pbo nucleus says netRS functioning, so power failure not the cause 20051009 pj: date estimated; site back online
gmpk 20011129 unable to download data. radio link is working, but cannot communicate with receiver after initial connection 20011204 able to connect. fat file indicates several power outages
gmpk 20020403 unable to connect to site 20020404 site was offline for 1.5 days
gmpk 20030825 occasional short data files. 11/18/2003 update: consistent short data files for past 3 weeks. 20031204 replaced batteries which were not charging fully. panels, which did not have any dung buildup, were cleaned
gmrc 20010807 Connection lost to modem and receiver. Pac Bell called to troubleshoot flaky phoneline. 20010830 Courier modem was replaced.
gmrc 20010828 Phoneline is not the cause of the problem. Local contact turned modem off/on. Still no connection. 20010830 Replaced the Courier modem.
gmrc 20030113 Phone line at site has been disconnected for some time now. Site was connected on a pay phone line that the University of California had removed because it was getting too little use. The director of the research center said that they are working on getting back service for that line. The new setup will have the site sharing the line with a regular phone, mostly used infrequently by students in the summer. Until then, data will be downloaded manually. 20030321 data flow resumed (sim entry: paul jamason)
gmrc 20060601 noted bad model trace in sopac refined model time series 20060606 removed decay term from model
gnps 20011025 Lost of communication from microwave upgrade. 20020328 new phone line installed?
guax 20010512 intermittent data collection due to problems with nanometrics satellite connection 20020319 Replace Carina box, GPS timing hardware, insert new solar controller
guax 20030223 this weekend the link went down and from my preliminary investigations it doesn't look like a power or equipment malfunction related problem ... I'll bring Nanometrics into this today. So, unfortunately we are not receiving any data at the moment. update, 05/14/2003: javier gonzalez says he thinks it is a communications problem 20040108 data are coming in
hbco 20010522 AC from irrigation system tripped from unknown source other than our equipment. Sprinklers at school have not been working for two weeks. 20010604 HBCO Electrican (Willie) reset breaker and reduced the load coming from the irrigation system. AC is restored back to site but did cycle off and on before departure. Willie will look into the wiring of the system in the near futher.
hbco 20011117 No power at station and radio hung. 20011206 Irrigation fuse reset and radio reset.
hivi 20040712 Data does not download every day (on and off). 20040720 Charging light stays on, Batts at 12.8VDC. Problem: Solar cells and plexiglass cover are extremely dusty. Batts changed out (4) and solar panel was cleaned.
hnps 20010204 modem answers but unable to communicate with receiver 20010212 site has worldblazer modem. had changed egads to use courier. changed back to worldblazer
hnps 20011025 unable to communicate with site. staff indicates power and phone systems are being changed 20020319 After several attempts to communicate with site from various utilities, phone lines and modems from SIO, a worldblazer on holliday finally worked.
hnps 20030325 unable to comm with receiver. modem answers, but no rx id returned. same problem at mwd site gnps, and imps does not answer. unable to reach contacts with mwd. suspect large-scale facility phone change and/or problems. cecilia whitaker, 04/10/2003 update: I spoke with Conrad last Thursday afternoon and he was working on the problem then. I gather he's having a tough time figuring it out. He said he would let me know how it was going. I have a different phone number. His office number is 760-320-3229 and his cell is 760-832-2185. If Aris would like to try again today with these new numbers, I will try next week so that we alternately "nudge" him. 20030417 unknown
hnps 20031010 to do: replace worldblazer modem with courier. Assuming phone line is ok now. 20040504 replaced modem with courier
hnps 20040420 busy signal when dialed. 4/23/2004: request power cycle at site from cecilia whitaker, mwd. 4/26/2004: cecilia says global power cycle required, no one at site has keys to enclosure. e-mailed her breaker number (6) on panel for site. 4/30/04: mwd tech steve at site. reports boot-up nav board error. cleared internal memory, re-programmed rx. need to init modem, though, and cycling power on rx results in bootup error. ship replacement unit to cecilia. 5/5/03: cecilia installed rx, courier modem at site. no dial tone. she put in request for line repair to conrad berg 20040506 conrad berg called cecilia, said line is fixed. cecilia noted that line at site comes in hole in shed with sharp edges, may be causing problems with line
hnps 20040630 unable to connect successfully - modem unable to negotiate baud rate. probably bad phone line again. 07/01/2004: e-mailed cecilia, asked her to contact local site contacts. 20041110 Cecilia Whitaker, with help from phone company technician, fixed phone line and communications switch to 19200kps worldblazer at sio.
hnps 20050808 busy signal when dialed 20050826 I am at Hinds at this time, I found that the phone line was good, it was your equipment that was keeping the circuit off hook (busy). I cycled the power on the GPS enclosure, this cured the off hook condition, I noticed that the enclosure is making a fairly loud noise. If there is a fan or AC unit in the enclosure it may be about to burn the bearings.
hol3 20010725 Bad data still coming out of station mostly by cycle slips 20011121 Upgraded power system
hol3 20011127 Solar panel array blown off mast 20020207 We installed 6 solar panels to power both HOLC and HOL3.
hol3 20020207 Site is powered down until batteries are fully charged. 20020226 I replaced all four batteries at the site.
hol3 20020616 all data rejected in gamit processing. teqc shows high number of phase slips (clock problem?) 20030616 re-added site, teqc shows data are mostly ok, unknown when site became ok
holc 20011127 Solar panel array blown off mast, Freewave antenna cable severed 20020207 We installed 6 solar panels to power both HOLC and HOL3.
imps 20010825 Microwave/Phone problem is not allowing data to come in. AA talked with contact and technician is looking into problem asap. 20010901 Local technician fixed problem with microwave network.
imps 20011025 Microwave/Phone problem is not allowing data to come in. 20011201 Conrad added new phoneline for the site.
imps 20031210 Microwave/Phone problem is not allowing data to come in. 20041027 MWD seems to have solved the problem for the most part.
islk 20030629 It is likely that the station has been severely damaged or destroyed by a wildfire. 07/07/2003: The ISLK site survived the Lake Isabella fire. The seismic network has a station in the same place, and one of their technicians inspected the area and reports that our monument (including dome) appears undamaged. The receiver and auxiliary equipment were inside a concrete bunker that survived the fire; a wooden structure on top of the bunker was completely destroyed. Power and phone lines were also completely destroyed, so ISLK will be offline for awhile. 20030925 damage repaired
islk 20040829 autcln software throwing out all obs. teqc shows bad data starting late 08/28/2004 20040903 re-added to gamit. unknown problem.
islk 20041129 autcln software throwing out all obs. notified usgs. 20051027 new receiver
ivco 20001006 modem will not initialize 20001017 swapped modem
ivco 20001201 no answer from modem. visited site 12/07/2000, no power to site. 20001211 power restored to site, did not hear from campus personnel to obtain reason for outage
ivco 20010211 no answer from modem 20010220 jim pendley at campus indicated problems with pac bell phone lines, now solved. data missing from d.o.y. 042 to most of 045. power