How Does GPS Work?

People use GPS extensively every day, but not many people know how it actually works. How can a smartphone know where you are, to the point you can use it as accurate directions while you drive? Let’s open the hood on GPS and see how it works. Related: It’s Not Just GPS: We Have Six Global Navigation Satellite Systems, and They’re Getting Better How GPS Finds You Let’s say you’re hiking in the woods when you get lost. That’s alright, though: you had the smarts to download the official app for these woods. The app claims to help you find your way, no matter where… Read more

SpyTracker Nano GPS tracker review

REVIEW – Wanting to track or find physical items by attaching some sort of small device is as old as suspicion. It’s taken until the advent of small wifi and cellular transmitters to make it happen at a price point that normal people can really consider. I’ve been testing out the Nano from SpyTracker, a wireless tracker which would have made for good science fiction just a few years ago.

What is it?

A closed box roughly 3″ x 1.5″ x 1″. There is a smooth face with three LEDs labeled for GPS, PWR, and CEL. On one of the long sides there is a waterproof covered charging port (miniUSB cable included) and on one of the smallest sides there is a power button, also weatherproof. Next to the power port is a SIM card port covered with a piece of plastic and secured by two very small Phillips screws. There’s also a weatherproof SOS button on the face with the LEDs.

What’s in the box?

  • GPS unit itself
  • USB-A to miniUSB cable
  • wall charger

Design and features

The Spytrack Nano is a solid little black box that broadcasts its position every ten seconds. The service is available worldwide and, while it’s not cheap, it’s better than most phone plans. You can view the location of the Nano from within the website, or with a mobile app. This is where all the setup happens.

There’s an SOS button the user can trigger to alert you, or you can determine a geographical area you want it to stay in, and get an alert when it leaves. You can see velocity, position, and travel routes in real-time or as history. If you have serious gear (think video gear for a location crew, or scientific gear that you have to ship to a location for a project), you’re able to see exactly where it is while it’s being shipped. With a ten-day standby time, any but the longest travel times will be covered.


This device is dead simple. While it’s not the “James-Bond, hide-it-in-your-shoe-heel-size,” it’s still able to tell you where it is reliably every ten seconds from anywhere on the globe. Sure, there are creepy ways to use this technology, but there are also very legit ways that this could enhance your life. Say you’ve got a route manager servicing stores with whatever product you’re selling. Someone calls and says, “Hey, when is the guy gonna be here today?” You pull out your phone, check the location of the truck, and see it’s on the way to your caller. Or 20 miles away in traffic. Without bothering your driver, you can give your customer a heads up so they can plan.


Or, in my case, I have an aging mother who still cherishes her independence. She lives near one of my sisters, but if she was in town, you can bet this would be in her bag, and at 63 grams, she’d never notice it. But she’d be happy to know her son was looking out for her. Sure, I could track her iPhone, or get her an Apple Watch to wear, but this is much cheaper, has longer battery life, and even offers her an SOS button if she just wants me to check on her. (Better believe that would be worn out!) The screenshot below will show your location, and that of the tracker, and allow you to plot an intercept course. My phone thought I was across the street in the neighbor’s yard, but the tracker knew right where it was. Different service, different towers, different triangulation.

 

Setup

When the unit arrived, it was already activated and a login assigned. I was able to resign it to a different account with no issues. Loading the app and logging in worked without a hitch. You can purchase additional service time in the app when your plan expires. Prices currently range from £10/device for a month to £85/device for a year, purchased in advance.

Performance

The app behaved itself like a pro throughout my testing period. I was able to see historical routes by date and time, watch the progress in real-time or speeded up, and find my way to the device from my smartphone.

What I like

  • Light and tough
  • No real operational tasks
  • SOS button

What I’d change

  • Price for service is a bit high, but it is global and unlimited

Final thoughts

At some point in your life, there’s going to be something you want to track: a parent, child, vehicle, or shipment. This unit provides that service in a fairly inexpensive package, and you can just toss it in a drawer and reactivate it (top-up) when you want to use it. There is no setup, other than to pair it to the app, which takes all of a minute.

Price: £59.99 (US$72.82 as I write this)
Where to buy: Rewire Security
Source: The sample of this product was provided by Rewire Security.

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SpyTracker Nano GPS tracker review originally appeared on The Gadgeteer on August 12, 2019 at 10:00 am.

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It’s Not Just GPS: We Have Six Global Navigation Satellite Systems, and They’re Getting Better

If global navigation satellite systems (GNSS) stopped working, life would get confusing pretty quickly, since we use them for everything from driving directions to keeping computer clocks updated. Even a 13-microsecond satellite clock error in 2016 ended up causing a lot of headaches until it was fixed. Thus, it’s probably a good thing that GPS isn’t the only satellite navigation system in existence – Russia, the EU, and China all have their own satellite constellations, and there are even smaller regional systems that help make coverage of certain areas more precise. In fact, your phone is probably counting on two or three different satellite constellations… Read more

Tail it global range GPS trackers review

REVIEW – We all have “stuff” that we like to keep track of, from our backpacks full of expensive computer gear, to our luggage and even our pets. We’ve reviewed a variety of tracker devices here on The Gadgeteer over the years, but most of those tracking fobs are only useful when they are within Bluetooth range of your phone. What if you want to keep track of something that is a few miles away or even across the country. That’s where a GPS tracking device like the Tail-it Tracker comes in handy. Let’s take a look.

What is it?

Tail-it trackers are credit card and smaller sized tracking devices that have a built-in GPS and cellular SIM card that allow them to be used anywhere, not just within range of your phone.

What’s in the box?

The image above contains the contents of the Tail it+ and Tail it Pet packages.

  • Tail it+ or Tail it Pet tracker module
  • Pre-installed SIM card
  • Screwdriver
  • USB charging cable
  • Tail it Pet also comes with a silicone case that can be attached to the pet’s collar

Design and features

There are five styles of the Tail it devices but we were sent the Tail it+ and the Tail it Pet. There’s the Tail it+ shown above on the left which is a black soft-touch plastic credit card sized device.

It that has a USB-C charging port on one side and a small oval button that doubles as a status LED on top.

Note that the Tail it+ can charge wirelessly too. Just place it on a Qi charging pad and you’re good to go.

Then there’s the Tail it Pet which is a much smaller device that charges with a proprietary magnetic USB charger and also an oval power switch/LED status light on top.

Tracking using the Tail it app



To use the Tail it devices, you have to activate the SIM cards and then install the Tail it app on your mobile device. The app’s interface is a basic dashboard where you can see the tracker’s battery status and last seen details. Clicking each device will then allow you to call, share, or delete the device.

The Call feature is confusing. It’s really meant for the GPS watch version of the Tail it Kids which gives the parent a method of calling the watch in an emergency situation. But for the Tail it+ and Tail it Pet, tapping Call just makes your smartphone call what looks like an international number which then results in a busy signal.

The Sharing feature will let the people you give permission to also be able to see where the tracker is at any given time.


The app will also allow you to turn the LED light on the tracker and turn a sound alert on which causes it to make a high pitched beep.

Both of these features can help you locate the tracker when you’re in close range.




Tail it devices use GPS and WiFi to determine the tracker’s location. GPS accuracy is within 5m or 16.4 ft and WiFi accuracy is within 50m or 164 ft. The fallback method that is used when GPS and WiFi is not available is LBS and it’s only accurate within 2km (6561.68 ft) which won’t help that much if you’re trying to find a lost item or pet.

The Multi-LBS system collects data from more than 3 GSM base stations and calculates accurate placement by analyzing, direction and ephemeris from satellites.

The app provides a map or satellite view of the Tail it device and gives you the option to turn on live tracking for emergency situations. Note that live tracking will cause the device’s battery to drain quickly because it updates the location every 5 seconds.

During my time testing the Tail it trackers, I would have to say that if I needed to locate a lost item, I would not want to rely on the Tail it app to help me find the item because the accuracy of the location even when using GPS was been pretty bad 80% the time and really bad a the rest of the time. It would also take the app a few minutes to update locations and many times it would say the update failed.

Even if the accuracy was good, it would still mean that the item could be within a range of 16 ft in the best of situations. I guess as long as the item you’re trying to find is pretty large, you’d be fine, but most of the time I used it, it didn’t show the tracker remotely close to where it really was.


Just as an example, in the images above you can see the purple circles which are the locations that the Tail it app says the trackers are located and the red dots are where they are really located. I guess that accuracy would be fine if you were trying to find a dog or a cat, but for a backpack or something smaller, not so much.

Battery life

The Tail it+ has a standby time of 8 weeks per full charge and the Tail it Pet has a standby battery life of 2 weeks on a full charge.

What I like

  • Can track globally
  • Simple to use

What needs to be improved

  • The app does not provide any geo-fencing features to alert you when the tracker has gone out of a pre-defined zone
  • Location feature provides inconsistent location results
  • Can’t get a history of movement
  • Won’t work in remote locations where there isn’t cell coverage or WiFi

Final thoughts

The best thing about the Tail it tracking devices is that they can be used globally but the worst thing about the Tail it tracking devices is that the location accuracy isn’t… well… accurate and it takes entirely too long to update locations through the app if they even work. If they can improve the accuracy and update speed, these trackers could be very useful but as is, I can’t recommend them.

Price: $99.00 for either version. This does not include the monthly subscription which is $4.99 per device if paid for 1yr in advance or $5.99 for a month at a time
Where to buy: Tail it
Source: The sample for this review was provided by Tail it.

Filed in categories: Reviews

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Tail it global range GPS trackers review originally appeared on The Gadgeteer on June 13, 2019 at 12:00 pm.

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Never Lose Your Wallet Again With Ekster Parliament Smart Wallet

With the advancement of technology, more and more things are also becoming “smarter.” Simply add an electronic sensor, and the thing will instantly become a “smart” device, to be sold at a much higher price. There has certainly been no lack of smart things, and your wallet is one of them. Ekster Parliament call itself a smart wallet simply because of an addition of a tracking device that can track where it is. And yes, the tracking device is removable, so it can instantly transform back to its old “dumb” self. Ekster Tracking Card The thing that makes it “smart” is its tracking card… Read more