Map your grid squares worked using WG7J Gridmapper

Somewhere over the last few days, I saw something somewhere about the WG7J GridMapper and how you can use it to map the locator squares (grids) that you’ve worked.

No software to install, it’s a webpage (

All you need to do is to use your logging program to create an ADIF file of your contacts and then you can use the WG7J GridMapper to create some nice maps. You can select the band you want to map – in my case I chose 50MHz since 1st January (I limited the date range in my logging program) – change the appearance of the map and decide whether to send the output to Google Maps – or if you have Google Earth – you can produce a KML extract that Google Earth will read. I tried both. The Google Maps is the first one to play with.

I liked the output to KML option better, but you have to download the file that the page produces and open it in Google Earth – easy enough if you are confident with Google Earth, KML and so on.

I love maps – the highest praise I can give is to say that I wish I’d written this myself!

Tim Kirby, G4VXE, is a regular contributor to and writes from Oxfordshire, England. Contact him at [email protected].

One Response to “Map your grid squares worked using WG7J Gridmapper”

  • obat tbc:

    I do not even know how I ended up here, however I assumed this publish was great. I do not realize who you’re however definitely you are going to a well-known blogger in case you are not already. Cheers!

Leave a Comment

Subscribe FREE to's
Amateur Radio Newsletter
News, Opinion, Giveaways & More!

Join over 7,000 subscribers!
We never share your e-mail address.

Also available via RSS feed, Twitter, and Facebook.

Subscribe FREE to's
Amateur Radio Newsletter

We never share your e-mail address.

Do you like to write?
Interesting project to share?
Helpful tips and ideas for other hams?

Submit an article and we will review it for publication on!

Have a ham radio product or service?
Consider advertising on our site.

Are you a reporter covering ham radio?
Find ham radio experts for your story.

How to Set Up a Ham Radio Blog
Get started in less than 15 minutes!

  • Matt W1MST, Managing Editor

Sign up for our free
Amateur Radio Newsletter

Enter your e-mail address: