Re: [OSM-talk] mapping while hiking
2008/4/27 Igor Brejc [EMAIL PROTECTED]: Charles Basenga Kiyanda wrote: Thanks for the suggestions. I hadn't thought about clipping the receiver to the top of my backpack. I also hadn't thought that a lot of small movement, compared to a steady stable displacement, might lower the accuracy. I'll keep that in mind if I try to attach the gps to my forearm and see what happens. Good suggestions frome everyone. I'll keep it in mind. Charles I'm using Vista Cx. From my experience and from what I've read from other people, I get the best reception if the unit is facing up, as you said. I'm not sure small movements affect it that much. I also use poles, but when walking on a flat terrain I tend to hold both poles in one hand and the unit in the other :). I also try to hold it in the hand which does not face a slope, it helps a little bit. I did discover one other thing: if I leave the unit turned off for a week or so, the unit's clock is no longer in sync, so it shows the incorrect time (even by a couple of days). The problem with this is that it calculates positions of the satellites using the incorrect time, so it takes quite a while to find the right satellites (and then synchronize the time). Unfortunately I couldn't find a way to set the time manually. Igor -- http://igorbrejc.net That shouldn't really be a problem unless your receiver uses a very crappy software because GPS satellites broadcast correct time every 30s. So your receiver should just pick that. It sounds like your problem is mainly that it takes time find satellites as your receiver can't make pretty much assumptions on which satellites it should try find if it has been turned off for a week. -- Lauri Hahne ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
Re: [OSM-talk] mapping while hiking
2008/4/26 Charles Basenga Kiyanda [EMAIL PROTECTED]: This is slightly off-topic, but does anyone have a trick to deal with the gps when tagging while hiking trails? I carry a garmin etrex legend Cx (unfortunately not the H version) and I find that it has to be looking directly up and flat to get best reception. Especially around here with often good tree cover and canyons. I'm just wondering if other hikers have found something to remedy that problem. I'm always using hiking poles when on the trail, so I was thinking about something that would look like an arm-band mounted pouch that I could strap to one of my forearm, since they stay pretty level constantly during the hike. Maybe a backpack mounted option? I'm fishing for ideas here. I've tried every possible permutation of having the gps stick out of one of my pockets on pants(trousers)/coat/etc to no avail. Just for reference, I'm in the southwest USA and my main source of hiking gear is REI and Amazon. Thanks in advance, Charles When its cold I tuck my eTrex Legend (old BW) into the rim of my hat, and seems to give it a pretty much all round view. I haven't tried something similar when not wearing a hat mainly because I now that in tree cover you really do have to be watching the unit to ensure its locked on and be prepared to stop at bits of clearing to keep a reasonable trace. I guess if I had my hands full with poles etc I would just have to put up with not seeing it and place it on the top (outside) of my backpack. I find reception is impaired even if there is just one thin layer of material between the patch antenna and the satellites. Cheers Andy ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk -- Andy Robinson ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
Re: [OSM-talk] mapping while hiking
At 04:13 AM 26/04/2008, Charles Basenga Kiyanda wrote: This is slightly off-topic, but does anyone have a trick to deal with the gps when tagging while hiking trails? I carry a garmin etrex legend Cx (unfortunately not the H version) and I find that it has to be looking directly up and flat to get best reception. Especially around here with often good tree cover and canyons. I'm just wondering if other hikers have found something to remedy that problem. I'm always using hiking poles when on the trail, so I was thinking about something that would look like an arm-band mounted pouch that I could strap to one of my forearm, since they stay pretty level constantly during the hike. Maybe a backpack mounted option? I'm fishing for ideas here. I've tried every possible permutation of having the gps stick out of one of my pockets on pants(trousers)/coat/etc to no avail. Just for reference, I'm in the southwest USA and my main source of hiking gear is REI and Amazon. I noticed that I got much better tracks on a bicycle than walking, even in similar conditions and speeds. After some experimentation, the reason seems to be that a GPS device likes to be kept relatively stable and not shaken or twisted around. The best place I've found on the human body is to use a day sack or rucksack with a central top pocket, i.e. centre upper torso with best view of sky. Hips and arms move too much. A rucksack strap should give similar results as other respondents suggest. Like Andy, I also tried under or on the brim of an Australian stockman's hat but I found that I move my head around too much, and also even the small weight gives me a headache after a while. Good hiking! Mike ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
Re: [OSM-talk] mapping while hiking
Mike Collinson wrote: I noticed that I got much better tracks on a bicycle than walking, even in similar conditions and speeds. After some experimentation, the reason seems to be that a GPS device likes to be kept relatively stable and not shaken or twisted around. The best place I've found on the human body is to use a day sack or rucksack with a central top pocket, i.e. centre upper torso with best view of sky. Hips and arms move too much. A rucksack strap should give similar results as other respondents suggest. Like Andy, I also tried under or on the brim of an Australian stockman's hat but I found that I move my head around too much, and also even the small weight gives me a headache after a while. I use a garmin carabiner clip to attach my gps60 to the shoulder strap of my rucksack - works very well, and is easy to get to for adding waypoints. Jon ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
Re: [OSM-talk] mapping while hiking
Thanks for the suggestions. I hadn't thought about clipping the receiver to the top of my backpack. I also hadn't thought that a lot of small movement, compared to a steady stable displacement, might lower the accuracy. I'll keep that in mind if I try to attach the gps to my forearm and see what happens. Good suggestions frome everyone. I'll keep it in mind. Charles Mike Collinson wrote: At 04:13 AM 26/04/2008, Charles Basenga Kiyanda wrote: This is slightly off-topic, but does anyone have a trick to deal with the gps when tagging while hiking trails? I carry a garmin etrex legend Cx (unfortunately not the H version) and I find that it has to be looking directly up and flat to get best reception. Especially around here with often good tree cover and canyons. I'm just wondering if other hikers have found something to remedy that problem. I'm always using hiking poles when on the trail, so I was thinking about something that would look like an arm-band mounted pouch that I could strap to one of my forearm, since they stay pretty level constantly during the hike. Maybe a backpack mounted option? I'm fishing for ideas here. I've tried every possible permutation of having the gps stick out of one of my pockets on pants(trousers)/coat/etc to no avail. Just for reference, I'm in the southwest USA and my main source of hiking gear is REI and Amazon. I noticed that I got much better tracks on a bicycle than walking, even in similar conditions and speeds. After some experimentation, the reason seems to be that a GPS device likes to be kept relatively stable and not shaken or twisted around. The best place I've found on the human body is to use a day sack or rucksack with a central top pocket, i.e. centre upper torso with best view of sky. Hips and arms move too much. A rucksack strap should give similar results as other respondents suggest. Like Andy, I also tried under or on the brim of an Australian stockman's hat but I found that I move my head around too much, and also even the small weight gives me a headache after a while. Good hiking! Mike ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
Re: [OSM-talk] mapping while hiking
On Fri, Apr 25, 2008 at 7:13 PM, Charles Basenga Kiyanda [EMAIL PROTECTED] wrote: This is slightly off-topic, but does anyone have a trick to deal with the gps when tagging while hiking trails? I carry a garmin etrex legend Cx (unfortunately not the H version) and I find that it has to be looking directly up and flat to get best reception. Especially around here with often good tree cover and canyons. I'm just wondering if other hikers have found something to remedy that problem. I'm always using hiking poles when on the trail, so I was thinking about something that would look like an arm-band mounted pouch that I could strap to one of my forearm, since they stay pretty level constantly during the hike. Maybe a backpack mounted option? I'm fishing for ideas here. I've tried every possible permutation of having the gps stick out of one of my pockets on pants(trousers)/coat/etc to no avail. Just for reference, I'm in the southwest USA and my main source of hiking gear is REI and Amazon. Thanks in advance, Charles I've heard that setting the GPS on a large flat piece of metal can improve reception. That's obviously not practical for hiking. Without an external antenna (which the eTrex series doesn't support) and/or a high-sensitivity receiver (i.e., a new device), the best you can probably do is to put it up on a shoulder strap, facing the sky. Karl ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
