Garmin summit hc seems to be off by more than 300 feet
I am using this GPS for geocaching so I need more accuracy! Last weekend (the first time I used it :) the little pointer stayed right on the road we were driving between two caches and then got us within 5 feet of the cache. Today I found one, but did not find a second. First I chalked it up to operator malfunction--but then I noticed that I was not on the road, on the map, even though I was driving on it. So then I went to a place I knew well and walked around a lake and the tracking showed me walking through the water. Not able to walk on water, I am pretty sure that the signal is clear or the map is not accurate. Oh, it is also very clear and I was in open areas, so it seems like I shouldn't have had any interference. How do I fix it??
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Re: garmin summit hc seems to be off by more than 300...
First of all make sure your etrex is not set up to follow roads (if it has that facility). Maps are not always accurate particularly edges of lakes and forest boundaries. If your etrex can only see a few satellites then accuracy will be degraded. Make sure your body is not shielding the view of the satellites by holding the unit away from you. The accuracy of any GPS is affected by the relative position of the satellites with respect to each other. If they appear (at your location) to be in a straight line then your GPS cannot perform the trigonometrical calculations to determine your position with any accuracy. In GPS speak this is called DOP - Dilution Of Precision and can result in variable accuracy from +/-5m at best to +/-30m or worse. HTH Peter
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The GPSr needs to build a new almanac. There are a few steps to do this properly.
1. hook up your Garmin to your PC and copy your wanted files. (Waypoints, geocache log, maps) 2. Do a soft reset of the GPSr.Warning: This procedure will delete information (waypoints,
routes, tracks, etc) from your GPS and settings may be set back to
1. Power the unit OFF
2. Hold down the two Soft Keys for 2 seconds
3. While continuing to hold the 2 Soft Keys down, press and hold down the Power button for an additional 5 seconds
4. Release all buttons, and select YES to the prompt asking "if you want to clear all user data?"
This form of reset does not seem to reset all of the settings to factory
defaults, just a few of the basics like Time Zone and Language, the
remainder of the settings are still taken from your existing profile
files. for this 3. Build a new almanac (Make sure you have fresh batteries)
Once you have completed a reset remember to place the Colorado
outside in a stationary position for 20 minutes in plain view of the
sky so that it can rebuild the almanac before using it again.
No this is a road navigation only unit. For a cheap entry level GPS that you can use for Geocaching, take a look at the Garmin eTrex series. For a top of the line, consider a GPS60csx or the new Oregon series from Garmin.
Hi, Your GPS is accurate for that brand. I have a Lowrance I Finder Pro. We could both put in the same coordinates and come up in different locations. It is just the way the different GPS's get their signal from the satellite. I use my GPS most of the time for a sport called Geocaching and so when I am given coordinates and don't find the thing I am looking for I so about a 30ft-60ft search around where my GPS took me. So yours is basically doing the same thing. I wouldn't worry about it......it's just the way the different models receive the signal that thows them off a bit. If you went out and got a set of coordinates and then I put those same coords into my GPS I would arrive at a completely different location as you. All is well....no need to worry.
absolutely! Hve yoiu checked that this model does not have a switch on the rear as well as on the front? the one of the front is standby. The other one is main power. Not 100% sure about your model so just check first. Other than that take it back to seller for replacement or instructions
This may be entirely normal. Check to see what the GPS's accuracy is at those times. If it isn't getting optimum reception it may be off by over 100 feet. Also the data base may not be perfect. On it's best day a normal GPS is only good to about 15-20 feet. That could easily put you on the wrong side of the road. What is the scale when you are all the way zoomed in? Taking all these factors into account, is your GPS giving you an unreasonable solution? They are not perfect unless you are using differential GPS which should be good to inches. Is your WAAS enabled? That will improve accuracy.
It is perfectly normal for the satellite signal accuracy to change frequently and this is nothing at all to worry about. Go into your settings and preferences and make sure the WAAS setting is selected. This will give you the maxium accuracy. The jerky movements are the graphics loading was tge map scrolls and again this is no problem. Enjoy your GPS the are a lot of fun.
Depends on the number of satellites each GPS is viewing at the time so if you are holding the device your body will be shielding a number of satellites from the device and this may be different depending which direction you are looking in. The other thing is that 10m/40ft is about the best accuracy you can get from a standard GPS. If you want better accuracy you need a surveying GPS with a Differential GPS receiver Peter
The preloaded maps are VERY generic, mostly major highways. They are not useful for geocaching.
The good news is that you can download free topo maps created by a very generous Canadian soul, Dale Atkin. The maps are free but donations are accepted. He is also working on US topo maps. I've used Ibycus and Garmin topo maps and prefer the Ibycus version. If this solves your situation, please come back and rate our answer. Thankyou.