Project Organization in MapItFast

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Project Organization in MapItFast

Just like files on a computer, MapItFast projects can accumulate over time. Without a structured file system in place, the project menu can start to look like a messy desktop. Here are some things to keep in mind when considering how to structure projects within MapItFast:

  • Projects cannot exceed 5,000 objects (total of lines, points, and/or polygons). This includes any spatial data that has been uploaded via shapefile, KMZ, or GPX file. If a project exceeds this number, you will receive an error message notifying you that only part of the project has loaded and that you will need to move some of the data to a new project.
  • If a user creates a project on a mobile device, it will automatically go into the “Uncategorized” folder. It can be moved to a different folder using the desktop app.
  • Users will only be able to see the current location of other users if they are working in the same project.

If you’re still not sure about the best way to organize you’re projects, here are some ideas:

  1. Folders by customer name– If your organization does work for multiple customers, it may be useful to organize you projects by customer name.  MapItFast supports subfolders as well, so additional folders could be created beneath each customer – one for each job, for example.
  2. Folders by user – If your data collection centers around a few users rather than clients or customers, you may wish to set up a folder for each user. The users can then choose how to organize their projects within that particular folder.
  3. Projects by date – If users are collecting a great deal of data in the field, it may be necessary to start a new project every month, week, or even daily. This will ensure that you never exceed the 5,000 object limit in a project. The data can always be copied or moved to a larger “master” project later (or exported to GIS format if the dataset is very large).
  4. Projects by region – If you plan on bringing in a large dataset via shapefile or KMZ, it is sometimes necessary to break it up to fit within the 5,000 object parameter. When this happens, one option might be to use a GIS program to divide the data into regions (i.e. by county, city, or simply north half, south half, etc.). This will make projects easier to manage and will keep the data in a location that’s easy to find.

Strider Forms FAQs

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Strider FAQs

AgTerra is committed to making a product that’s functional and easy to use. Sometimes, however, customers come to us with a question that they just can’t figure out on their own. Below are some common questions about Strider for mobile and desktop.

Upload errors can occur for a variety of reasons. If you receive a popup message window, be sure to scroll to the bottom for a better description of the problem. In most cases, you can track down and fix the issue in your Excel file using the information provided by the error message. You can read more about upload errors here in the online help guide.

Remember! You will need to use the user resources password provided by AgTerra to access the help pages.

If you are still unable to determine the cause of the error message, you may contact AgTerra for help.

Users cannot see a form until they have been added to a group and the group has permission to view the form. Strider permissions work independently from MapItFast, so even if a user is part of a MapItFast group, they will need to be part of a group in Strider as well. The steps for setting up user form permissions are outlined here in the online help guide.

Remember! You will need to use the user resources password provided by AgTerra to access the help pages.

In order to use a form in MapItFast, you will need to enable it through the Strider website. To enable the form, go to the Form Management page and select “Edit” next to the form you want to enable. In the Edit page, change the form type to “MapItFast and Strider Form”.

Note – After a form has been enabled, you will need to wait 10-15 minutes or close and re-open the app before it will be available.

Yes, Strider forms can be used on Apple. Unlike the Android apps however, Strider is built into MapItFast. This means that while you do not need to install a secondary Strider app, you are currently limited to filling out forms through the MapItFast app.

Yes, Strider applies a unique number to each form record entered into the system, starting with the number one. The database field is called ‘_ID’ and the value can be found in the record details page and XLS export. The ID can also be added to reports as a unique identifier for each record.

Yes, you can change the order of columns by dragging and dropping them to a new spot on the page. If your form has a lot of columns, you may need to drag the column, drop it, scroll, then drag it some more to get it moved over. Keep in mind that these changes will only be applied to your current desktop browser, so the columns will not be in the same place if you open Strider on another computer.

Five Things You Need to Know About MapItFast

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Five Things You Need to Know About MapItFast

If you’ve used MapItFast even once, you know that it’s made for easy mapping. There’s nothing quite like mapping points, lines and polygons with a single tap. But that’s only a fraction of what MapItFast can do! If you didn’t know about all the features below, it may be time to rethink how you’re using the software.

Map even faster with a Data Dictionary

The data dictionary feature in MapItFast makes it even easier to map in the field with pre-set icons, lines, and polygon colors with automatic naming of your map objects. Use of data dictionaries is a great way to get the most out of MapItFast search tool (read more below).

Sort through data with ease

When projects accumulate data over the season, it may be necessary to review and organize the data from time to time. AgTerra developed the search tool on the web app to alleviate tedious searching and editing of individual map objects.

Watch the video below to see how the search tool and permission settings can be used on a project in MapItFast.

Share only what you want to share

Account administrators can manage and view all projects in an account. Additional users in the account will be limited to only the projects they are allowed to see. MapItFast’s enterprise-level permission system allows account administrators to share projects and data with individual users and/or user groups.

Go digital with your forms

Replace nearly any paper form with MapItFast’s electronic forms. The data collected can be exported in tabular format through the Strider website, exported in spatial format from MapItFast, or even emailed as a PDF report directly from the app.

Let your map tell the story

With the use of our electronic forms, maps can be updated on-the-fly as users preform tasks in the field. By setting up an Active Map Trigger in the Strider website, a selection in a form can automatically change the color of a point, line, or polygon on the map. With just one glance, users can view the map and see the status change in real time.

Commonly Asked Questions about SprayLogger

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SprayLogger FAQ

Updated – April 2019

How does SprayLogger work?
The moment that flow is detected through a flow sensor (spray with a wand or a boom), the SprayLogger data recorder captures your GPS location, chemicals sprayed, the name(s) of the pests your are controlling, weather and other spray details.  All the data logged in SprayLogger is associated with a job.

How is my data managed with SprayLogger?
SprayLogger is a plugin to MapItFast.  Data from the SprayLogger unit is automatically captured by MapItFast where it can then be viewed on the device and/over the web in real-time.  All data is automatically synced to a user’s private account via an internet connection.  Data may be shared with others in real-time, exported to other Geographic Information System (GIS) systems, and/or authorized users may generate maps and reports for every spray job.  An internet connection is not required while gathering the data in the field.

Can SprayLogger handle the water, chemical, dust, vibration environment I work in?
SprayLogger is a durable unit that may be mounted inside or outside a vehicle cab or onto a backpack sprayer.  SprayLogger is a solid state design with no moving parts.  The box is water resistant and can handle the mist from spray, but it is not designed to be submerged in water.

How many pests or weeds can I log at one time?
There is no limit to the number of weed species that can be mapped simultaneously with SprayLogger.  One or many targets being controlled ata  given location are logged with a simple single tap on the screen.

My spraying contract requires weather data every 2 hours.  Does SprayLogger capture weather too?
Yes.  SprayLogger will associate temperature, wind speed, wind direction and relative humidity to every spray track hourly or when changed by the user.  The user may elect to let SprayLogger capture weather data from the nearest weather station or change the data manually if the site conditions are different.  Weather data from handheld weather meters like the Kestrel Weather meter can also be uploaded for the ultimate in accurate weather data collection.

Will the SprayLogger E3B work with a differential GPS?  Is this what the GPS port on the side is for?
Higher resolution GPS devices such as the Garmin Glo and submeter, differential bluetooth GPS devices such as the Arrow Lite work well where situations such as tree canopy, deep canyons, buildings, etc. would otherwise limit the quality of your GPS signal.  The port on the side of the box is for the GPS antenna which when placed in full, clear view of the sky provides the strongest standard GPS signal possible to the box (typically 1-3 meter, and an improvement over the 3-5 meter accuracy you can expect on a mobile device).

My spraying contract requires weather data every 2 hours.  Does SprayLogger capture weather too?
Yes.  SprayLogger will associate temperature, wind speed, wind direction and relative humidity to every spray track hourly or when changed by the user.  The user may elect to let SprayLogger capture weather data from the nearest weather station or change the data manually if the site conditions are different.  Weather data from handheld weather meters like the Kestrel Weather meter can also be uploaded for the ultimate in accurate weather data collection.

Can SprayLogger be used on more than one spray rig?
Yes.  The SprayLogger box can be set up to collect data from a different spray rig regardless of the flow sensor being used.  The operator simply needs to select the spray rig/flow sensor to be used before spraying.

What flow rates will SprayLogger capture?
Different flow sensors are available to assure accurate measurement from your sprayer.  We recommend and sell electromagnetic sensors from Sika which have no moving parts are highly accurate; usually within 1%.  If you are using the SprayLogger E3B box, you may monitor up to 6 flow sensors at one time.

Do I need an Internet connection in the field?
No.  Data collected from the GPS, flow and temperature sensors are stored in SprayLogger until it is synced to your cloud account when a connection becomes available.

Who has access to my online data?
Only those with proper permissions to your account are able to access the jobs you choose to share.

Is a power supply required?
Yes. The SprayLogger E3B is powered with a 12V power supply from either an inverter or direct vehicle power from a fuse box. Backpack Lite units are powered via a USB power bank.  A power supply box is included with the E3B and plugs into a power inverter. 

What if I lose my Bluetooth connection?
All SprayLogger units communicate with your mobile device via a Bluetooth connection. If this connection is lost, the SprayLogger E3B will switch to on board memory and continue to store data until a Bluetooth connection is reestablished. For all SprayLogger models the SprayLogger menu in the MapItFast app will instantly turn bright red to indicate the signal is lost so that the user can re-establish a connection.  Although very rare, this has been known to occur with some electrical and radio interferences and if the power supply is lost or insufficient for powering the Bluetooth.

Get the most advanced pesticide record keeping system on the market.

Call AgTerra TODAY to get started at (307) 673-1050.


For well over a decade AgTerra has enabled natural resource professionals to simplify data collection and reporting while delivering greater value to their customers.  How can we help you?  Contact us today for a FREE demo and let us help you learn how easy and affordable our technology can be for your workforce and operations.

Devices to Consider

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Which Mobile Device is Best?

AgTerra’s applications are only as good as the device that runs them. While our minimum requirements will allow most modern Android mobile phones and tablets to be used, a good quality, field-tested device can often save headaches down the road. When it comes to using add-ons like SprayLogger, a device with good processing power as well as high quality GPS and Bluetooth components is a necessity.

ANDROID MINIMUM REQUIREMENTS
  • Android 5.0+
  • 2GB+ RAM
  • 8MP Camera
  • Stand alone GPS built in
  • 1.9GHz+ quad core
APPLE MINIMUM REQUIREMENTS
  • iOS v10.0
  • Cellular modem required for GPS location
  • Wi-Fi Only Devices: Bluetooth GPS device required

While most manufacturers do not list the quality of the internal Bluetooth or GPS receiver built into a device, users can typically expect higher quality components in the mid to upper-price range on name brand devices. Low cost or budget friendly devices – even name brand – are often made with inferior components that can often fail to meet expectations through low GPS accuracy or dropping of Bluetooth signal.

Top Android Performers

Samsung Galaxy Tab S3 (Tablet)

Samsung makes great products. Their smartphones and tablets have reliable hardware including high-sensitivity GPS, bright displays, good on-board cameras and more.  The software included on most units also helps to make the devices useful for all your business productivity needs. The Samsung Galaxy Tab S3 is a tablet definitely worth considering for field use. As a mid-sized tablet with an 8″ display, it is easy to hold in one hand.  Many people like the idea of a larger display (the S3 is also available in a 9.7″ size), but these units can be difficult to carry and consume more battery  while working in the field. The 8″ S2 gives users the feel of a big screen while still making it easy to map and fill forms in the fields.

The Tab S3 has excellent display, GPS, and camera features.  The high resolution display is suitable for use in direct sunlight and the built-in GPS is accurate within 3-5 meters (common for most off-the-shelf GPS units).  We have found that it works well even in canyons and heavy vegetation.  The on-board camera takes high quality pictures which can be geo-tagged in MapItFast or added to Strider forms.  Data entry is further enhanced with optional voice to text entry that works well even with considerable background noise.

 

If you are using the Galaxy Tab S3 with MapItFast and storing quite a bit of data (i.e. custom basemaps or layersets), you will want to take advantage of the external SD card. Not all devices have external SD card capability and this is a key feature to look for if you often use MapItFast and Strider while offline.

Samsung Galaxy S7 (Phone)

If you prefer to work from a smartphone, consider the Galaxy S7.  The S7 has all the features of the S3, but has even better screen resolution and a higher resolution camera.  The battery life on the S3 and S7 are very good.  You can expect a full day of use.

Runner-up

Samsung Galaxy Tab S2 (Tablet)

While this device is an older model, it is still a well-made, proven device that works well with AgTerra’s products.

Apple Devices

The MapItFast app is compatible with iPhones and iPads running iOS 10.0 or later. One important thing to note however, is that the device must have a cellular modem. WiFi-only tablets will not have the built-in GPS receiver necessary for accurate data collection in MapItFast. This is especially important to check on iPads because many models are WiFi only.

Accessories

MapItFast does consume quite a bit of power for GPS and synchronization and we have learned that external battery chargers can be very useful. If you are working in the field for extended periods of time, we recommend carrying an external battery, such as Zero Lemon, for charging.

GPS accuracy can also be improved through the use of external GPS receivers. AgTerra recommends a device such as the Garmin Glo which can help achieve accuracy of about 2-3 meters on mapped objects.

AgTerra Adds New Functionality to MapItFast

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AgTerra Never Stops Improving

We never stop improving our products!

One of the many advantages our customers get with their annual subscription are automatic and free updates to the software we build.  Our customers share their experiences with us and we listen to every one of them so we can learn what we need to do to help make the software not only better for them but everyone else too.  Here are three recent features we added to MapItFast you may not know about.

1)  Mapping points, lines, polygons and photos has always been based on your current GPS location.  As you navigate around a location you can map areas, perimeters, items in the area and gather photos all at the same time and they will show on your map based upon where you are.  However, it is not always possible to map using a GPS.  Imagine trying to map a wildfire perimeter while it is burning.  Now you can tap and hold the point, line, or polygon button for a couple of seconds (also called a long press) and you are then able to locate a new point or draw a line or area on the map.  Since area and distance are also calculated when you are done, this is a great way to gather measurements in the field as well.  All features you map this way are also synchronized so they are shared with others.

2)  We have now added is an automatic alert you can activate so you know if your GPS stops collecting data.  This can occur if the GPS on your device is not sensitive enough in areas such as narrow canyons and underneath heavy canopies.  It can also occur if the settings for GPS data collection are set for higher sensitivity than your device can achieve.  To activate the alarm (which is set to off by default), simply tap on the GPS accuracy, speed and altitude box in the upper left hand corner.  This will bring up a detailed GPS information box.  Scroll to the bottom and check the box for “Send notification when GPS communication is lost”.  After doing so, if GPS data cannot be collected within 2 minutes because of a poor signal for your settings, you will receive a text alert alarm and a warning icon will display.

3)  Another nice feature that has been added is the ability to use custom symbols for points, lines and polygons that are preset in your data dictionary.  This makes it possible, for instance, to map a bridge location by selecting the word bridge from a list on your device originally created in in your data dictionary.  Beside typing the word automatically for you a picture of a bridge can be used instead of a map pin to show its location.  Areas and lines can also have unique colors, types and transparency applied.  Your maps on your device, other people’s devices, on the web, and in your KMZ export will all show with unique symbology.

We hope you enjoy these new features.  Please keep your ideas coming!

AgTerra Product Updates

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AgTerra Product Updates

agriculture and natural resources

At AgTerra Technologies, we love the technology we work with and we continually update our products to meet and exceed the needs of our customers while keeping them user friendly.

In 2016, we added several significant features to MapItFast, Strider Reporting and SprayLogger.  We also introduced SnapMapper as a tool for mapping equipment operations, hands free.

Below are some of the key updates we made during 2016.  Keep checking back on our posts, we are working on significant enhancements in 2017 including a long-awaited for release of Apple (iOS) compatible MapItFast and Strider apps.

MapItFast and Strider Updates – 2016

  • Search Tools – these tools allows users to select objects in MapItFast based on a search term, a rectangular select box or a lasso.  Selected objects can be mass copied, moved, deleted, change attributes, add forms, export and more.  This tool makes it even easier and fun to work with projects containing a large amount of data.  Searching by text will even search for terms within forms attached to objects in MapItFast.
  • Active Map Triggers – This feature will automatically change a map object when a value in a form is selected.  This can be a selection from a drop-down list, radio box, etc.  When the value is selected, the point, line or polygon feature will change icon or symbology to reflect the change.  So, for instance, if a user selects a work order form as complete, a symbol on a map could change from a red dot to a green checkmark if desired.
  • Lookup tables – autocomplete functionality was added to Strider so that an entry, even from a large list, can be quickly selected and the other entries in a form will be prepopulated.  For instance, a user might select a name which in turn prepopulates the associated street, city, state, zip code and phone number in a form.
  • Form Template – the template for Strider form was updated to make it even easier to design input forms using Excel.
  • New modules – Rangeland Management, NISIMS and Sage Grouse Habitat Assessment forms are now available.

SprayLogger

  • SprayLogger is now more tightly integrated into MapItFast on both mobile and web platforms.  This makes it easier to associate a MapItFast project such as weed inventory with a SprayLogger job controlling noxious weeds.
  • Backpack and multi-channel versions of SprayLogger were released.  The Backpack SprayLogger is a truly portable version of SprayLogger that automatically logs small volume spray applications from anywhere.  The multi-channel E3 model now maps spray activity from one or many spray booms and shares and displays the information in real time.
  • The ability to merge one or many SprayLogger jobs was added to help keep jobs at a manageable level for field users while giving managers the ability to seamlessly tie all the jobs together.

SnapMapper

  • SnapMapper was introduced this year as a new tool for mapping points and lines based on equipment operation.  When a button or switch is activated for one second a point is added to a MapItFast project automatically.  If the button or switch is activated for longer than a second, a line is automatically drawn within the MapItFast project.  SnapMapper makes it possible to log equipment operation based on buttons or switches without the need to look at or tap on a mobile device screen.  The product is finding use documenting activities such as crop harvest, liquid salt application, right-of-way mowing operations, grader operations and more.

We always have something new and exciting going on at AgTerra.  Give us a call to learn more or to see a demo.

Flow Meters and SprayLogger

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Determining Which Flow Sensor is Right for You

Your SprayLogger unit comes prepackaged with a high quality Sika flow sensor, however we are frequently asked questions about what other flow sensors should be used with SprayLogger.  To help you with your decision-making process we’ve put together a table.

View a Table Comparing Flow Sensors Used with SprayLogger

Things to Consider

When considering which flow sensor is right for your needs, ask yourself the following questions:

1) What is your minimum and maximum flow rate in gallons per minute (GPM)?  If you don’t know the answer to this, simply fill a bucket to a known level and time it.  If your tank is accurate enough, you can also determine GPM by calculating the number of gallons used over a period of time while operating your nozzles.  Your calculations should be done using the slowest rate you intend to spray and the highest rate.

2) Do you spray wettable powders frequently?  If you are spraying clay-based or other materials that are suspended in solution (rather than dissolved) you may have issues with turbine based sensors becoming stuck and broken if they are not properly cleaned after every application and they become “cemented.”  Consider using an electro-magnetic sensor instead which has no moving parts.

3) What is your budget?  At AgTerra we only offer flow sensors with a proven track record for performance and durability.  Lower cost sensors made out of brass should provide you with at least three years of reliable use (probably many more with good care), while stainless steel sensors and electro-magnetic sensors will last even longer because of better materials and no moving parts, respectively.

4) Still not sure? Contact us and we’ll help answer your questions and guide you to the right sensor for your needs.

Improving MapItFast GPS Accuracy

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Improving MapItFast GPS Accuracy

Tips and Tricks for Getting the More Accurate Readings from the GPS in Your Android Device

Quick Overview:
GPS use and accuracy can get to be an very involved and technical subject, yet people want to know what they can do to improve the accuracy of the data they collect with MapItFast.

MapItFast is designed to work at any accuracy your GPS can provide.  Most Android devices are equipped with a built-in GPS that can provide 3 – 5 meter (~9 – 15 feet) accuracy.  They communicate with the US constellation of GPS satellites.  Accuracy is influenced by a number of factors:

  • How many satellites the device can connect to
  • Terrain features (hills, valleys, canyons, etc.)
  • Canopy cover (forests and other overhead vegetation)
  • Position of your device (vehicle, building, pocket, etc.)
  • Atmosphere (cloud cover and weather)

MapItFast and Strider Reporting keep you informed on the accuracy of the data you are collecting.  When using the MapItFast application this information is displayed in the box in the upper left hand corner of the screen.  Tapping on the box will bring up even more GPS details.  When collected GPS data in Strider your accuracy will display at the time of data collection.

Tips to Improve GPS Accuracy:

    1. Device Position – If possible, position the device so that it is pointed upward with an open view of the sky.
    2. Make sure the location settings on your Android device are set to accept GPS satellites.  Most Android devices have a High Accuracy setting which will use both GPS and WiFi (when available) for highest accuracy and fastest GPS lock-on times.
    3. MapItFast GPS Settings – Set the GPS settings in MapItFast to help assure accurate data collection.  The following are available:
        1. GPS Accuracy  MapItFast will use this setting to determine when data is accurate enough to be collected. The default setting allows the app to  collect data anytime GPS accuracy is 80 ft (~24 m) or better.  The lower the number, the more accurate the data will be, however you must keep in mind the average accuracy of your device’s GPS. If you set this number too low, your device may not collect any data if the GPS cannot obtain minimum accuracy.
        2. Minimum Distance This setting prevents unnecessary data collection while the device is sitting in a single spot. At the default setting, you must travel at least 10 feet from the previous line point or polygon vertex before another line or vertex will be logged. If minimum distance is turned off, MapItFast will continue to collect points at timed intervals regardless of the device’s location.
        3. Minimum Time  This setting is the minimum time between line points or polygon vertices as they are drawn on the map.  The default setting is one second. When logging lines or areas that have numerous curves, it is a good idea to use a small time interval to assure the vertices are being collected, especially if you are traveling fast. If this is turned off, MapItFast will collect points using the minimum distance setting.

Bluetooth GPS

Many of our customers are not aware that you can connect and use a Bluetooth GPS for data collection.  A Bluetooth connected GPS will override the GPS on your device.  This makes it possible to use a stand-alone GPS such as the Garmin Glo, Bad Elf, or SX Blue to improve GPS accuracy.  The Garmin Glo will help you achieve an accuracy as low as 1-3 meters because it utilizes Russia’s GLONASS satellite network in addition to US network. The SX Blue is able to provide sub meter accuracy which is commonly used today with survey and hi-resolution navigation systems such as those found in agriculture and construction equipment.

We hope this post on GPS accuracy helps you with what to expect when logging data in MapItFast on your mobile device.  Please contact us via phone or email with any questions you might have or assistance you might like on this subject.

About Android GPS Aaccuracy

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If you are having issues with GPS accuracy, read this!

Your Android and Apple devices are equipped with a built-in GPS.  This is why you can take advantage of MapItFast to turn your device into a powerful GPS mapping tool in combination with all the other things you can do on your handheld.  However, not all devices are built the same and the GPS in your device may not function as you expect.  To help you understand, we’ve put together some basic information about devices and GPS accuracy.

Some key points to remember are:

  1. MapItFast is not GPS software, it is mapping software.  MapItFast simply uses the GPS signal it is provided when using the app to map points, lines and polygons.  This may be based upon the internal GPS in the device or from a standalone GPS connected to the device via Bluetooth.
  2. The standalone GPS built into most smartphones and tablets today have an accuracy level of 3-5 meters (approx. 9-15 feet).  This means that your location showing on your device should be within 0-15 feet of where you really are.
  3. Sub meter accuracy requires differential correction (techniques to improve GPS accuracy). Find out more about differential correction.
  4. aGPS, also known as assisted GPS, is used to improve startup performance of an internal GPS.  It does this by capturing general location based on mobile towers or wi-fi.  However, the general location provided by aGPS is not suitable for accurate point, line and polygon feature mapping.
  5. While using MapItFast, you can ensure GPS accuracy by changing GPS settings for position accuracy, minimum distance and minimum time.  We suggest using the device recommended settings (or setting an alarm when GPS accuracy settings are exceeded) because no data can be collected when GPS criteria in these settings is not met.
  6. When mapping a polygon for an area measurement that is greater than 1 acre in size, 3-5 meter resolution is usually sufficient for calculating acreage within 0.1 acres.  Logging multiple vertices while navigating around a boundary helps increase accuracy because of averaging.

 

Some GPS devices include access to the Russian Glonass satellite system.  GPS units that include this system with the USA system are accessing more satellites and can typically provide accuracy in the 1-3 meter range.

Many things affect GPS accuracy and precision and some things such as working near building, in canyons, under trees, atmospheric factors, etc. cannot always be avoided.  However, techniques such as pointing the GPS upward, maintain a clear view of the sky, not holding it next poles, trees, etc., and waiting for a good fix before you log are good practices.

GPS signal strength is measured in dBW (Decibel-watts).  Today’s GPS are usually at the -155 to -160 dBW level. High sensitivity GPS receivers are able to integrate the incoming signals that are thousands of times weaker (i.e. down to −185 dBW; more negative equals a weaker signal).  On standard devices, look for GPS with a sensitivity that is not greater than -165 dBW.

If the GPS in your device is not accurate enough for your field work, consider using a more accurate GPS device with Bluetooth connectivity.  Devices such as the Garmin Glo cost around $100 and usually have better than 3 meter accuracy. Bluetooth GPS devices such as EOS Arrow GPS devices deliver sub-meter accuracy and integrate well with MapItFast.

Have more questions?  Contact Us!