Are there any handheld GPS units where the altitude is satellite-based (like vehicle units) rather than barometric (which is weather-variable)?
1277098
Yes, the Etrex 20 http://www.tigergps.com/garminetrex20.html or the Garmin 62 series http://www.tigergps.com/garmingpsmap62.htmlRegards,Chris
1277099
Altitude is part of the position calculation, and almost all GPSs can report it. Altitude error is about twice location error, so not too accurate. An altimeter/barometer greatly improves this accuracy, by correcting for oscillations in indicated altitude. They figure out the barometric pressure, so the slow weather changes are corrected out. Plus you can predict weather from the barometric changes, if you study them carefully enough.
1277100
Yes, the Etrex 20 http://www.tigergps.com/garminetrex20.html or the Garmin 62 series http://www.tigergps.com/garmingpsmap62.html Regards, Chris
1969459
I think this is correct... Sensors: Light - YES Accelerometer - YES GPS - YES Compass - NO Gryoscope - YES Barometer - NO
834263
It can be programmed to give dms or degrees/decimal degrees and more. Its very easy to do on virtually all Garmin handhelds. It is accessed by menu/setup/position format. The preciseness of the position is dependent on many factors, however a position on the order of 15 ft is common.
1140568
In theory, satellite triangulation is one of the most accurate way of fnding your position, not only in coordinates (Latitude and Longitude), but in altitudes as well. Altimeters in watches uses barometric sensors to measure air pressure to calculate altitude. I'm betting the 305 will give me the closest, if not accurate, altitude than the best barometer sensor watch in the market. Add the convenience of tracking and recording altitude, with your heart rate, time, pace, position and distance at the same time. Why settle for anything less?
1724319
No, there are no weather features on this Marine GPS. It is very good for position on the water and tracking, and compass.
1265172
Currently, WAAS satellite coverage is only available in North America. There are no ground reference stations in South America, so even though GPS users there can receive WAAS, the signal has not been corrected and thus would not improve the accuracy of their unit.
836356
The GPSMAP62 is about as accurate as any of the current handhelds. It depends on if you full satellite coverage, terrain and other factors. I've seen it get down to about 10 feet and about as off as 100 ft. As always you should not rely on GPS alone. You should always carry map and compass. Something to remember, since the satellite array is mostly military when they launch large operations or when the terror threat is high the military introduces a greater error into the lat/long calculation.
1112751
I believe this model can show altitude but you will have to refer to the start up guide that comes with the unit to download the manual. The unit is very easy to operate. You should not have any problem learning the functions since you have owned a Garmin.
332935
I have an Etrex Vista HCx. It has amazingly good accuracy except in altitude. I plot all my trips on Google Earth and it is 95% of the time within 6' of the correct location. However the altitude information is so inaccurate compared to previous Garmins that I have owned that I suspect Garmin has deliberately sabotaged the vertical information. For example, I flew Southwest from Austin to Dallas back to Austin yesterday and the Vista never had me more that 1,600 feet above sea level. Believe me, at 450 miles per hour, 1,600 feet ASL would have been quite exciting, even in Texas.
426941
Yes, you should be able to. Keep in mind that tall building in a large city like NYC may interfere with the satellite signal at times. Also, I don't know what the battery life is on this unit as I've never used it as a handheld before.
254810
It does but it's a little flakey, and that's with good satellite coverage. GPS' just don't work so great when it comes to elevation. The 305 does work 'good enough' though. I do all my runs on mountains so elevation and grades are very important factors. I'm satisfied enough.
2011866
Yes. It's under Mode > GPS. It can also show you a live compass, if needed.
517650
Most handheld GPS's made now are accurate to within a few yards, sometimes even better than that. For marking ice fishing spots you would not need a fancy one, any handheld unit should work. To keep it working in very cold weather, I suggest lithium batteries, which also last longer.
1480682
No it does not display altitude. This device measures your speed, heartrate, and cadence (rate at which you are spinning the pedals). That's all. It does not have any GPS or the like.
1514989
There is a handheld unit in this model but I would not try to convert it to a handheld.
1918109
WHAT, THEN, IS A BETTER ALTERNATIVE. I CAN'T SEEM TO GET A CLEAR ANSWER ON WHAT GPS ONE SHOULD BUY FOR THE CAR. ARE THERE ACTUALLY UNITS IN THIS PRICE RANGE THAT ARE RELIABLE? IF SO, WHAT ARE THEY?
39703
I have not tried this... but you can't calibrate it to barometric pressure (aside from resetting your altitude to 0) so as the weather changes it will be less accurate. This also doesn't start recording altitude until you go up 50 feet from when you start recording. Furthermore the battery only lasts for 12 hours of continuous use. I think there are better altimeters for the price for your purposes. You can read the user manual here: http://www.jollylogic.com/http://www.jollylogic.com/www/wp-content/uploads/2011/01/AltimeterOneUserGuideV2-0.pdf