Mariusz, Nikolaus, Sebastian, Thanks for the fast responses!
See inline responses: On 2010-11-04 03:27, Dr. H. Nikolaus Schaller wrote: > > Am 03.11.2010 um 17:08 schrieb Philip Rhoades: > >> People, >> >> I wanted to start using the GPS facilities on my FreeRunner but there is >> a Catch 22 situation: >> >> - If I am inside, there is too much concrete to get GPS signals >> >> - If I am outside, I don't have a connection to download maps >> >> I thought if I could get an external GPS antenna connected and lead it >> outside to my balcony, I could get GPS reception while I was still >> inside (it is not always convenient to go out to the balcony and use >> WiFi). I assumed (!) the little antenna connection on the top right >> edge of the freerunner was for a GPS antenna but when I went to buy one >> the guy told me the connection is for a 3G antenna . . if I look at: >> >> http://wiki.openmoko.org/wiki/Neo_FreeRunner_GTA02_Hardware#GPS_Antenna_Performance >> >> it seems to suggest that there IS an external connector for GPS? >> >> Can someone clarify? > > The guy is definitively wrong. The Freerunner doesn't support 3G... > > There is a connector for an external GSM antenna just near one > of the two Torx screws. You can see it when you open the battery cover. > > The golden connector is a "MMCX" type and provides approx. 3V 15mA for > an external antenna. > > I am using a Navilock antenna similar to this one (sorry, it is in German): > > > http://www.ddcom24.de/shop/artikel_artikel_8556_name_Navilock-GPS-Zusatzantenne-NL-70ATW-MMCX-90%B0-gewinkelt.html > > Please make sure you get a MMCX (and not a MCX) connector. Right. > For the GPS performance tests we do, I simply place the Freerunner > on a window board so that it looks upright and the upper part of > the Freerunner looks outside. You may have to use one or two > books (e.g. Shakespeare complete edition...). My balcony windows face more residential blocks - in the past I have had to go out on the balcony and put the FR near the railing to get anything . . > This is not optimal for satellite reception with the built-in antenna, > but much better than inside a room. With that setup you usually get a fix > within 2 minutes (sometimes it may take 15 minutes since the > receiver can only see less than half of the sky and there may not be > enough visible satllites). > > After getting a fix, the receiver is sensitive enough to track even inside > a room. I am hoping that I can get an antenna connection and connect it to a wire going outside? > Finally, you can download the important maps off-line onto a SD card. I now have 611 dirs and files under ~/Maps but I have tried all the zoom levels and tried dragging around on the screen but I can't get any pictures . . Is there a way of (conveniently) setting my long and lat and then downloading so that I know the maps I am getting are from my area? Thanks, Phil. -- Philip Rhoades GPO Box 3411 Sydney NSW 2001 Australia E-mail: [email protected] _______________________________________________ devel mailing list [email protected] https://lists.openmoko.org/mailman/listinfo/devel
