{"action":"created","issue":{"url":"https://api.github.com/repos/tomojitakasu/RTKLIB/issues/99","labels_url":"https://api.github.com/repos/tomojitakasu/RTKLIB/issues/99/labels{/name}","comments_url":"https://api.github.com/repos/tomojitakasu/RTKLIB/issues/99/comments","events_url":"https://api.github.com/repos/tomojitakasu/RTKLIB/issues/99/events","html_url":"https://github.com/tomojitakasu/RTKLIB/issues/99","id":98661167,"number":99,"title":"Some problem about RTKLIB rtkrcv and str2str","user":{"login":"teduav","id":9317044,"avatar_url":"https://avatars.githubusercontent.com/u/9317044?v=3","gravatar_id":"","url":"https://api.github.com/users/teduav","html_url":"https://github.com/teduav","followers_url":"https://api.github.com/users/teduav/followers","following_url":"https://api.github.com/users/teduav/following{/other_user}","gists_url":"https://api.github.com/users/teduav/gists{/gist_id}","starred_url":"https://api.github.com/users/teduav/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/teduav/subscriptions","organizations_url":"https://api.github.com/users/teduav/orgs","repos_url":"https://api.github.com/users/teduav/repos","events_url":"https://api.github.com/users/teduav/events{/privacy}","received_events_url":"https://api.github.com/users/teduav/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":1,"created_at":"2015-08-03T02:55:37Z","updated_at":"2015-08-03T04:18:07Z","closed_at":null,"body":"Hello everyone: \r\n        I use two Ublox lea-6t to testing RTKLIB on Linux,First,I use one for base station,I use str2str to transfer data from UBX to RTCM3 the command is : \r\n ./str2str -in serial://ttyUSB0:115200:8:n:1:off#ubx -out serial://ttyAMA0:115200:8:n:1:off#rtcm3 \r\nfrom the screen I can see the data is send out.Then I use another as rover station,in the config file I set the right inpstr2-type/path,and fromat is rtcm3. I run the rtkrcv on the rover station,after 20 minutes the solution is single ,I can't get float or fix solution.what's wrong? \r\n       I think the problem is str2str command,the rover station can't get the right base station,because I didn't use RTKLIB before so I don't know How to slove it.Can somebody tell me?"},"comment":{"url":"https://api.github.com/repos/tomojitakasu/RTKLIB/issues/comments/127118529","html_url":"https://github.com/tomojitakasu/RTKLIB/issues/99#issuecomment-127118529","issue_url":"https://api.github.com/repos/tomojitakasu/RTKLIB/issues/99","id":127118529,"user":{"login":"DavidKelleySCSC","id":5143060,"avatar_url":"https://avatars.githubusercontent.com/u/5143060?v=3","gravatar_id":"","url":"https://api.github.com/users/DavidKelleySCSC","html_url":"https://github.com/DavidKelleySCSC","followers_url":"https://api.github.com/users/DavidKelleySCSC/followers","following_url":"https://api.github.com/users/DavidKelleySCSC/following{/other_user}","gists_url":"https://api.github.com/users/DavidKelleySCSC/gists{/gist_id}","starred_url":"https://api.github.com/users/DavidKelleySCSC/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/DavidKelleySCSC/subscriptions","organizations_url":"https://api.github.com/users/DavidKelleySCSC/orgs","repos_url":"https://api.github.com/users/DavidKelleySCSC/repos","events_url":"https://api.github.com/users/DavidKelleySCSC/events{/privacy}","received_events_url":"https://api.github.com/users/DavidKelleySCSC/received_events","type":"User","site_admin":false},"created_at":"2015-08-03T04:18:07Z","updated_at":"2015-08-03T04:18:07Z","body":"teduav:\nThis issue seems to come up quite a lot.  There seems to be quite a few \nfolks with a pair of 6T units that a direct FAQ for just for that need \nseems to be in order.\n\nBut to your question.  Many things could be wrong, let's take it one \nstep at a time.  Off topic, your speeds are rather high, 19,200 will do \nand give you slightly better reliability.  In the RTKlib code, If your \nRTK solution is getting raw observables from both sides, AND the antenna \nposition, you will see it move from autonomous (\"single\" in RTK terms)  \nto float almost immediately.  [You do have the filter set to do \n\"kinematic\" right, the RTKLIB term for RTK]  In fact the only delay one \ntypically observes (with current orbits) is that most base stations only \nsend their location message once every 10~15 seconds.\n\nYou say you see it getting a single fix, that confirms you are getting \nraw observables from the rover and orbital data from somewhere (probably \nthe rover). But not any float/fix.  That suggests a bad base station \nstream of raw observables or (more likely) that the position of the base \nstation is not known by the RTK filter.  Two points to keep in mind:  a) \nthe green led means that RTK navi got data not that it decoded and used \ndata.  Use the monitor to confirm you see decoded raw observables,  and \nb) you have to expressly tell the filter where the base station is \nlocated.  If you are not sending it that key bit of data by RTCM (and \ntelling RTKLIB to get it from there) or setting it directly, then the \nfilter cannot use the base station stream of raw observable and you will \nnever leave 'single' mode.\n\nI would be looking at the filter set up and first try and hard code in \nthe base location value (ECEF or LLH). On the RTKNAVI GUI that found \nunder the tab called \"Positions\" and a combo box marked Base Station.  \nSorry I am at home cannot go look at a console device for the setup \nparameter for console use.\n\nI do not know how you tell a uBlox and RTKlib to make the RTCM message \n1006 (that is the one with the location). Perhaps other know that part \nof the setup, as ideally you do not want to have to change it.  If you \ncannot get the uBlox/RTKLIB combo to send the 1006 message I do not \nthink you have any other choice than to hard code it.\n\nBut I am willing to bet as soon as you get this last data item working, \nyou will move into float mode.\nGood luck, David Kelley\n\nOn 8/2/2015 7:55 PM, teduav wrote:\n>\n> Hello everyone:\n> I use two Ublox lea-6t to testing RTKLIB on Linux,First,I use one for \n> base station,I use str2str to transfer data from UBX to RTCM3 the \n> command is :\n> ./str2str -in serial://ttyUSB0:115200:8:n:1:off#ubx -out \n> serial://ttyAMA0:115200:8:n:1:off#rtcm3\n> from the screen I can see the data is send out.Then I use another as \n> rover station,in the config file I set the right inpstr2-type/path,and \n> fromat is rtcm3. I run the rtkrcv on the rover station,after 20 \n> minutes the solution is single ,I can't get float or fix \n> solution.what's wrong?\n> I think the problem is str2str command,the rover station can't get the \n> right base station,because I didn't use RTKLIB before so I don't know \n> How to slove it.Can somebody tell me?\n>\n> —\n> Reply to this email directly or view it on GitHub \n> <https://github.com/tomojitakasu/RTKLIB/issues/99>.\n>\n\n-- \nRegards,\nDavid Kelley\nITS Programs Manager\nSubCarrier Systems Corp. (SCSC)\n626-485-7528 (Cell)     626-513-7715 (Office)\n\n"}}