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Old 02-25-2014, 09:13 PM   #76
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I'm in transition with GPS on my bike. I want to ditch the Garmin and use my Galaxy S-4 exclusively for navigating but I have had disappointing results retracing tracks (when hiking) that I collected with my Garmin 60cx and I know to be good tracks. Basically, when retracing the track the S-4 always plots a considerable distance off the track. Could be a software issue but I think that the Waas-enabled Garmin GPS just outputs much better quality positions and tracks. Need to do more testing, especially on the bike.
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Old 02-26-2014, 07:55 AM   #77
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Originally Posted by MX2ADV View Post
I'm in transition with GPS on my bike. I want to ditch the Garmin and use my Galaxy S-4 exclusively for navigating but I have had disappointing results retracing tracks (when hiking) that I collected with my Garmin 60cx and I know to be good tracks. Basically, when retracing the track the S-4 always plots a considerable distance off the track. Could be a software issue but I think that the Waas-enabled Garmin GPS just outputs much better quality positions and tracks. Need to do more testing, especially on the bike.
What software?
What is the distance error?

I don't think Waas adds much correction. And the S4 with GPS & Glonass appears to be the most accurate system that I have ever used. I would suspect that the software you are using isn't doing the math to translate the points accurately.
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Old 02-26-2014, 08:22 AM   #78
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S4 is my next upgrade in a couple of months. I'd be interested to know what software he is using as well.
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Old 02-26-2014, 11:34 AM   #79
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Hey...I'm one of those dumbasses!!!! My flip phone is on it's last leg. my GPS has been tits up for over a year and i just replaced it this week with a dry erase marker for my windshield. some one advised me to buy an old laptop to use at the campgrounds and continue as usual. But this samsung smart phone appears to replace my gps and a laptop...but what about music? i don't want streaming as that will cost a fortune (i think). can i load my music off my computer into the S4? if so, will it bluetooth into my scala rider Q2? I don't even know how to send a text msg!
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Old 02-26-2014, 12:19 PM   #80
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Hey...I'm one of those dumbasses!!!! My flip phone is on it's last leg. my GPS has been tits up for over a year and i just replaced it this week with a dry erase marker for my windshield. some one advised me to buy an old laptop to use at the campgrounds and continue as usual. But this samsung smart phone appears to replace my gps and a laptop...but what about music? i don't want streaming as that will cost a fortune (i think). can i load my music off my computer into the S4? if so, will it bluetooth into my scala rider Q2? I don't even know how to send a text msg!
You can load music, video, pictures, and more, into the device memory. It also has a memory slot. You can load up a memory chip (micro SD) and just plug it in.
Just as you can load the map data (and a map program) onto it.
Yes it should stream you music , GPS notification and phone calls to the bluetooth headset.
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Old 02-26-2014, 01:15 PM   #81
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so i'm looking at the galaxy S4. is there a better phone to research?
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Old 02-26-2014, 01:52 PM   #82
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so i'm looking at the galaxy S4. is there a better phone to research?
IMO, nope. Unless you want to wait for the S5.
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Old 02-26-2014, 06:15 PM   #83
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What software?
What is the distance error?

I don't think Waas adds much correction. And the S4 with GPS & Glonass appears to be the most accurate system that I have ever used. I would suspect that the software you are using isn't doing the math to translate the points accurately.
So far I've tried Track Navigator app on the s4 and imported my Garmin .gpx track. The errors I'm seeing are intermittent but sometimes as much as 50-60 feet (estimated). I totally disagree about waas. Handheld dedicated gps units could not get the 2-3 meter accuracy that they routinely get without it, especially in the woods. But, I hear you about the software. This thread has given me some ideas about other apps to try.
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Old 02-26-2014, 06:20 PM   #84
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You can load music, video, pictures, and more, into the device memory. It also has a memory slot. You can load up a memory chip (micro SD) and just plug it in.
Just as you can load the map data (and a map program) onto it.
Yes it should stream you musical , GPS notification and phone calls to the bluetooth headset.
+1. I have hundreds of CDs worth of music with room to spare on my 32gb Micro sd in my s4. Bluetooth works great with my Sena SMH10 as well for music, phone etc.
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Old 02-26-2014, 06:59 PM   #85
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so i'm looking at the galaxy S4. is there a better phone to research?
Not IMHO.
If you wait months, and pay more, there is the new not yet released S5. It is water resistant which is a big plus. But then there is also a water resistant version of the S4 that you may want to look into.
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Old 02-26-2014, 07:33 PM   #86
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Originally Posted by MX2ADV View Post
I'm in transition with GPS on my bike. I want to ditch the Garmin and use my Galaxy S-4 exclusively for navigating but I have had disappointing results retracing tracks (when hiking) that I collected with my Garmin 60cx and I know to be good tracks. Basically, when retracing the track the S-4 always plots a considerable distance off the track. Could be a software issue but I think that the Waas-enabled Garmin GPS just outputs much better quality positions and tracks. Need to do more testing, especially on the bike.
It wouldn't surprise me that a dedicated GPS could give slightly better accuracy under challenging conditions (tree canopy, atmospheric conditions, limited satellite availability, etc..). The biggest advantage would be in the antennae which really helps under these conditions. Better isolation of the electronics (to limit interference) can also help as does the quality of the GPS chipset used. And of course, the software can make a difference. But generally, the difference is within a few meters and not significant for navigation. For mapping applications, accuracy is much more important and where many of the consumer grade dedicated units also fall short. I've seen a lot variability in PDA's, smartphones, etc., but it is difficult to pin-point specifically the cause without doing a side-by-side comparison.
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Old 02-26-2014, 08:21 PM   #87
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It wouldn't surprise me that a dedicated GPS could give slightly better accuracy under challenging conditions (tree canopy, atmospheric conditions, limited satellite availability, etc..). The biggest advantage would be in the antennae which really helps under these conditions. Better isolation of the electronics (to limit interference) can also help as does the quality of the GPS chipset used. And of course, the software can make a difference. But generally, the difference is within a few meters and not significant for navigation. For mapping applications, accuracy is much more important and where many of the consumer grade dedicated units also fall short. I've seen a lot variability in PDA's, smartphones, etc., but it is difficult to pin-point specifically the cause without doing a side-by-side comparison.
Yeah, I'm not too surprised, either, that I'm seeing a difference between the s4 and the Garmin. But the scale of the difference did surprise me. For navigating on highways the disparity is not too important because you would probably not see it when you're zoomed out anyway. For navigating on single or double-track trail, I hope to do better.
Not giving up yet, though. I just downloaded copilot app on the s4 and hope to do some testing this weekend on my mountain bike.
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Old 02-26-2014, 09:12 PM   #88
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A lot of the phones nowadays have actual GPS chips inside them. These GPS chips communicate with satellites directly.

When you open your map app on your phone, the GPS inside knows the lat/long location. But, because the overlay (the map imagery) isn't stored in your phone, you don't see anything unless you're hooking up to wifi/3g and getting maps downloaded onto your phone as you move around. So, if you actually moved around with a half loaded map, the blue dot would move aswell. It's just that the map images aren't there.

You can download application that provide full maps to you. Like MotionX or Navigon. They store the whole maps on your phone. So, you don't need a cell/data signal. The GPS chip talks talks to satellites to affix your lat/long. The app takes this info and places you on the stored maps.

Strictly speaking, the GPS chip doesn't "talk" to a satellite. It doesn't "communicate" with a satellite. The GPS sends no signal. It only receives a signal.
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Old 02-26-2014, 09:16 PM   #89
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Strictly speaking, the GPS chip doesn't "talk" to a satellite. It doesn't "communicate" with a satellite. The GPS sends no signal. It only receives a signal.
Don't ruin it. I like the idea of my phone talking to the satellites.
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Old 02-26-2014, 09:34 PM   #90
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Strictly speaking, the GPS chip doesn't "talk" to a satellite. It doesn't "communicate" with a satellite. The GPS sends no signal. It only receives a signal.
If the GPS(receiver) is receiving then the (GPS) satellite is communicating with the GPS(receiver). The direction of information (communication) is from the satellite(transmitter) to the receiver. Same as satellite TV.

---------------
There are many different flavors of the galaxy S4.
I'm buying the S4 mini i9192. I want the 4 band GSM and the 4 band 3G, and the microSD storage (meaning it cannot be water proof).. and the GPS stuff, wifi. Not worried about 4G, bluetooth, IR. Having said that the buletooth and IR may be useful. You need to go through what you want and then select one.
One hint I've had on smartphone use .. in remote areas - go into 'airplane' mode and then enable the GPS - cuts battery drain by turning off the phone, wifi and bluetooth. But leaves you with mapping stuff.
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