Grid Locator Calculator
Free
4.0for iPhone
Age Rating
Grid Locator Calculator Screenshots
About Grid Locator Calculator
For Amateur Radio operators who often travel to unknown places.
Forgot to check GL reference? Do not worry.
If you have iPhone and GPS is working then you can check your location's GL reference very easily. You do not need internet connection.
Ideal if you go to mobile or portable operation often and not sure where GL boundaries are.
App shows you 10 digit locator. If you need only 4 or 6 digit, just use first 4 digit or 6 digit, respectively.
Note: Usually Grid Locator is 6 digit as defined in ARRL document. This 10 digit is expansion of 6 digit as 7th and 8th are divided by 10 ("0" through "9") then 9th and 10th are divided by 24 ("a" through "x"). This logic is based on article on Wikipedia.
Forgot to check GL reference? Do not worry.
If you have iPhone and GPS is working then you can check your location's GL reference very easily. You do not need internet connection.
Ideal if you go to mobile or portable operation often and not sure where GL boundaries are.
App shows you 10 digit locator. If you need only 4 or 6 digit, just use first 4 digit or 6 digit, respectively.
Note: Usually Grid Locator is 6 digit as defined in ARRL document. This 10 digit is expansion of 6 digit as 7th and 8th are divided by 10 ("0" through "9") then 9th and 10th are divided by 24 ("a" through "x"). This logic is based on article on Wikipedia.
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What's New in the Latest Version 4.0
Last updated on Jun 17, 2020
Old Versions
Thanks for using this app. There are several performance improvement as well as design change.
Wish you enjoy app!
Wish you enjoy app!
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Version History
4.0
Jun 17, 2020
Thanks for using this app. There are several performance improvement as well as design change.
Wish you enjoy app!
Wish you enjoy app!
3.1
Jul 27, 2017
Bug fix.
In some location, last digit of calculated Grid Locator (5th latitude) was wrong.
Thanks for using app. As usual, any feedback is welcome, send to mj0cfw@gmail.com
In some location, last digit of calculated Grid Locator (5th latitude) was wrong.
Thanks for using app. As usual, any feedback is welcome, send to mj0cfw@gmail.com
3.0
Jul 25, 2017
App shows 10 digit Grid Locator.
Note: Usually Grid Locator is 6 digit as defined in ARRL document. This 10 digit is expansion of 6 digit as 7th and 8th are divided by 10 ("0" through "9") then 9th and 10th are divided by 24 ("a" through "x"). This logic is based on article on Wikipedia.
As usual, any feedback is welcome, send it to mj0cfw@gmail.com
Note: Usually Grid Locator is 6 digit as defined in ARRL document. This 10 digit is expansion of 6 digit as 7th and 8th are divided by 10 ("0" through "9") then 9th and 10th are divided by 24 ("a" through "x"). This logic is based on article on Wikipedia.
As usual, any feedback is welcome, send it to mj0cfw@gmail.com
2.3
Jul 7, 2016
Made performance improvement.
As usual, any user feedback is welcome at mj0cfw@gmail.com
As usual, any user feedback is welcome at mj0cfw@gmail.com
2.2
Mar 30, 2016
Bug fix - in some cases app crashes because failed to fetch address information from internet.
2.1
Oct 18, 2015
Fix address format so now app shows street, city, postal code, country.
2.0
Oct 3, 2014
Updated for iOS8 location service.
1.3
Dec 18, 2013
Minor bug fix - previous version shows incorrect grid locator reference if user location latitude is between 0.0 and -1.0 degree.
1.2
Nov 8, 2013
added text messaging (SMS)
- Now you can send text message
- Now you can send text message
1.1
Oct 17, 2013
Japanese version added.
1.0
Sep 30, 2013
Grid Locator Calculator FAQ
Click here to learn how to download Grid Locator Calculator in restricted country or region.
Check the following list to see the minimum requirements of Grid Locator Calculator.
iPhone
Requires iOS 10.0 or later.
Grid Locator Calculator supports English, Japanese
