Does this unit have a problem with steep underwater dropoffs? My 492C loses track of the bottom for 5 minutes when it passes over a dropoff. If I cross an area that is 10 feet deep over a dropoff into an area that is 30 feet deep the 492 stops reporting the depth for about 5 minutes. This is very frustrating and Garmin has not been able to cure the problem. I have been thinking of upgrading to this 546. Does this unit have a problem with steep underwater dropoffs? My 492C loses track of the bottom for 5 minutes when it passes over a dropoff. If I cross an area that is 10 feet deep over a dropoff... » Read More Does this unit have a problem with steep underwater dropoffs? My 492C loses track of the bottom for 5 minutes when it passes over a dropoff. If I cross an area that is 10 feet deep over a dropoff into an area that is 30 feet deep the 492 stops reporting the depth for about 5 minutes. This is very frustrating and Garmin has not been able to cure the problem. I have been thinking of upgrading to this 546. « Show Less
1375372
I have owned a 545 and now a 546 for 5 years and have never experienced this issue. Good luck.
1375373
No, mine shows me the drop off as soon as I pass over it, at troll and at WOT (42mph)
2284538
I've never had trouble with the accuracy of distance. Only if you ride in a very wooded and hilly area, might that ever happen. It's never happened with me and my unit. Garmin makes very high quality product.
2129521
Hi best thing is to call Panasonic and ask. I had to do an exchange because of bad cross info and they were very helpful. But after that it has worked flawless. So far did about 30+ dives and has been great. Would give the # if I had it but on vacation again. Good luck.
1172688
The system has a floating sensor that will trig when water level drop about 1/4 if an inch .The only problem with this ATO it's that make sure that float sensor it's free of algae, salt or any calcium deposit .
355080
Thanks for the update, dsrussell. I'll take your advice and check out the review of the 765 that you mentioned at gpsmagazine.com. It's too bad that the folks at Garmin didn't include this info about the 765 in their owners manual. Must have been an oversight on their end. Again,thanks a bunch!
2012130
I really can't answer. I only had my TomTom for a couple of weeks -- it had issues. I bought another Garmin instead.
331068
same problem same age and similar decision... try turning off for 24 hrs and than reloading using the usb cable and the garmin website otherwise chukkit and replace!
2029626
The unit is off when you press the "off" button. but will always be recording when on". The exception is when you are in the menu mode for reviewing and such. Garmin chose to do this because, it eliminates the possibility of just viewing and, "not", recording during a critical time. I have a very early model, and I am sending it to Garmin under warranty to be checked out. I could not download files as I once did. They do stand by their warranty.
92108
Did you have any low battery warnings? I always got strange readings when my foot pod battery was getting low (I guess I'm on my 4th sensor, and finally found out you can return them for replacement if it doesn't last a year).I also found that I needed to calibrate mine for the stride length/speed I was running. When I'm doing marathon training or running with friends I apparently take shorter strides than when I race a 10K. Last year I had a 10k register as 9.3K so the next time I calibrated it (vs my Forerunner 301 GPS) again during a .25 mile warmup at 10k pace. Second 10K I got 10.2K so it was better. Did you have any low battery warnings? I always got strange readings when my foot pod battery was getting low (I guess I'm on my 4th sensor, and finally found out you can return them for replacement if it doesn't last a year).I also found that I needed to calibrate mine for the stride length/speed I was running. When I'm doing marathon training or running with friends I apparently take shorter strides than when I race a 10K. Last year I had a 10k register as 9.3K so the next time I calibrated it (vs my Forerunner 301 GPS) again during a .25 mile warmup at 10k pace. Second 10K I... » Read More Did you have any low battery warnings? I always got strange readings when my foot pod battery was getting low (I guess I'm on my 4th sensor, and finally found out you can return them for replacement if it doesn't last a year).I also found that I needed to calibrate mine for the stride length/speed I was running. When I'm doing marathon training or running with friends I apparently take shorter strides than when I race a 10K. Last year I had a 10k register as 9.3K so the next time I calibrated it (vs my Forerunner 301 GPS) again during a .25 mile warmup at 10k pace. Second 10K I got 10.2K so it was better. « Show Less
1038331
I am using a "Transcend" 32G, "Class 6" with no problems so far. I have tried both the 3 minute loop and 5 minute loop modes and BOTH modes work well. I have NO loss of recorded data between 3 minute loops or 5 minute loops. I leave mine on the 5 minute loop mode and so far, in the 4 weeks of use since I got the camera and "Transcend" card, no problems.
989382
Asumming that you put your arm in properly, not to bind the sensor, It measures quite consistently. If we get a higher reading, as we're concerned about our results, we lay back to rest for 3 minutes, breathe deeply 4 times,then the measurement drops as much as 10 points. I find it's Memory records daily consistent BP's, vs our old Arm-Band unit.Checking it with the local Market, or Drug Store, it's results are very Good!
688549
My wife and I used it on a cruise a few months ago... 4 islands in the Caribbean and no issues whatsoever.I used it mostly in the 3-5 foot range, but my wife was able to dive down while snuba'ing to about 15-20ish or so. (I think that's a little over the recommended depth, but no issues. We were very careful when in shallows for sand getting into the closing mechanism and also followed the cleaning procedures after we got back to the boat. (I also opened up both slot covers just to dry any random moisture out also.)Even the deep pictures came out pretty decently with less light, very impressed. We had some disposables that were absolutely terrible in comparison! My wife and I used it on a cruise a few months ago... 4 islands in the Caribbean and no issues whatsoever.I used it mostly in the 3-5 foot range, but my wife was able to dive down while snuba'ing to about 15-20ish or so. (I think that's a little over the recommended depth, but no issues. We were very careful when in shallows for sand getting into the closing mechanism and also followed the cleaning procedures after we got back to the boat. (I also opened up both slot covers just to dry any random moisture out also.)Even the deep pictures came out pretty decently with... » Read More My wife and I used it on a cruise a few months ago... 4 islands in the Caribbean and no issues whatsoever.I used it mostly in the 3-5 foot range, but my wife was able to dive down while snuba'ing to about 15-20ish or so. (I think that's a little over the recommended depth, but no issues. We were very careful when in shallows for sand getting into the closing mechanism and also followed the cleaning procedures after we got back to the boat. (I also opened up both slot covers just to dry any random moisture out also.)Even the deep pictures came out pretty decently with less light, very impressed. We had some disposables that were absolutely terrible in comparison! « Show Less
829645
I've had the unit for about 2 months now and drive quite a lot for my job and I love it. To this point I haven't had any issues. A VERY, VERY heavy tree canopy or large cities with lots of high rises are about the only thing that I could see possibly causing an issue with the devices ability to "see" the GPS sats. This unit doesn't need cellular network access, so distant, rural areas shouldn't present any problems. One thing to note, if you haven't driven your car for a few days, it will take a minute or two for the device to "re-lock" onto the GPS sats, but then it works just fine. Not really a big issue in my mind. I've had the unit for about 2 months now and drive quite a lot for my job and I love it. To this point I haven't had any issues. A VERY, VERY heavy tree canopy or large cities with lots of high rises are about the only thing that I could see possibly causing an issue with the devices ability to "see" the GPS sats. This unit doesn't need cellular network access, so distant, rural areas shouldn't present any problems. One thing to note, if you haven't driven your car for a few days, it will take a minute or two for the device to "re-lock" onto the GPS sats, but then it... » Read More I've had the unit for about 2 months now and drive quite a lot for my job and I love it. To this point I haven't had any issues. A VERY, VERY heavy tree canopy or large cities with lots of high rises are about the only thing that I could see possibly causing an issue with the devices ability to "see" the GPS sats. This unit doesn't need cellular network access, so distant, rural areas shouldn't present any problems. One thing to note, if you haven't driven your car for a few days, it will take a minute or two for the device to "re-lock" onto the GPS sats, but then it works just fine. Not really a big issue in my mind. « Show Less
40234
I have also updated the firmware to the most recent 12/28 and am also still having freezing issues. The Garmin reliably freezes after about 2 hrs on usage. I have had Garmin products for several years now and this is the only one that freezes. The others have been solid!
448410
I found this youtube review, it's safer to use down to 50 feet, but these guys took it down to 130 feet and was still working. I would say to use caution, perhaps it's ok at 130 feet for a few seconds. If you want something for diving, it's always advisable to buy something that has a specific waterproof housing.https://www.youtube.com/watch?v=FN7LQvCZm8M
558075
make sure all the batteries are good and installed correctly - one wrong will keep it from working. If all battery conditions are met, then call Dorcy for a replacement. I've had no trouble with mine after 20+ dives.
446696
Is this line at the very top edge, very bottom edge, or in between? If it's somewhere in between, I haven't noticed this on any of the Garmin models I have used, and I'd exchange it.