ATAK Field Course
A free, hands-on course from MyDigitalJourneyman (MDJ). One tool at a time. Each module is short, ends with a hands-on drill, and gets checked off when you can do it without the sheet. Your checks save on this device.
How to teach it
- Phone in hand, outdoors when you can. Nobody learns ATAK from slides. Every module has a drill on the real MDJ map.
- One tool per block, 15–20 minutes. Show it once, have them do it, then have them show the next person. If they can teach it, check it off.
- Work in pairs. Most of Levels 2 and 4 need a second person who is somewhere else: across the yard, down the block, in another city.
- Fix settings first. Before anything else: units to feet and miles, callsign set, team color and role set. Half of all confusion is someone reading meters or showing up as a gray dot.
- Mistakes are free. Nothing a trainee drops on the map hurts anything. Delete it and drop it again.
| Session | Covers | Time | Where |
|---|---|---|---|
| 1 | Ground school + Level 1 | 60–75 min | Indoors, Wi-Fi |
| 2 | Level 2 team drills | 60 min | Outdoors, two or more people spread out |
| 3 | Level 3 MDJ feeds | 45 min | Anywhere |
| 4 | Level 4 mesh, no cell service | 60 min | Outdoors with Meshtastic radios |
Ground school
Get on a server and set up the phone. You'll need a setup sheet from whoever runs your TAK server.
Three ways things reach your phone
Everything you get from the team arrives one of three separate ways. When something is missing, first ask which path it travels on.
- 1. Network (the server connection): positions, chat, markers, alerts, aircraft and mesh tags. Broken = no green dot and nothing live.
- 2. Package (data packages): maps, icon sets, overlays and the links for live layers. Broken = connected, but the team's maps and layers are missing.
- 3. Plugin (add-on apps inside ATAK): extra tools such as weather or traffic. Broken = that tool is missing. Plugins are built for one ATAK version, so don't update ATAK on your own.
The mesh radios aren't a fourth path. Their tags come in over the network path.
Get on a TAK server
- Install ATAK-CIV from Google Play (Android) or iTAK from the App Store (iPhone). Computers can use WebTAK in a browser.
- You need an account on a TAK server. To practice on ours, email [email protected]. You'll get a private setup sheet with your username and certificate steps.
- In ATAK, add the server from your sheet: Settings › Network Preferences › Network Connection Preferences › Manage Server Connections › +, tick Enroll for Client Certificate, and load the trust store file that came with the sheet.
- The server line turns green. On our server, the team's maps, overlays and icons are pushed to your phone within a minute or two.
“No user found” means the username is mistyped. “Invalid password” means what it says. After three tries, stop guessing and ask whoever set up your account.
No server yet? Level 1 works on any ATAK install. Start there.
Callsign, team, role, units
- Settings › Callsign and Device Preferences: set your callsign (a ham call like KJ6YJR or a short name), your team color and your role (Team Member, Team Lead, HQ, Medic and so on).
- Settings › Display Preferences › Basic Display Settings › Unit Display Format Preferences: distance in Feet/Miles, speed in mph.
- Leave GPS on. A teammate with a diagonal line through their dot has no GPS fix.
Operator: drive the map
The goal: move around the map without getting lost, put a marker where you mean it, and measure things.
Compass, self-marker, layers
- Your self-marker is the blue arrowhead. The Android back button re-centers on it. The crosshair button locks the map to you.
- Tap the compass (upper left) to switch between North Up and Track Up. Long-press it for manual rotation and 3D.
- Change the base map in Maps & Favorites. MDJ Starter adds 22 map sources: USGS imagery and topo, Esri, OpenTopo, Bing, Google.
Zoom out to all of Southern California, switch to USGS imagery, then use the back button to get home. Switch to Track Up, walk ten steps, and watch the map turn with you.
Point Dropper and the radial menu
Open the Point Dropper, pick a marker, tap the map. Basic markers come in the four affiliations, and their colors mean the same thing on every TAK map:
- Tap any marker for its radial menu: Details, Fine Adjust, Send, Delete, Range & Bearing.
- Details holds name, type, remarks and attachments. Put photos on markers with the paperclip.
- Long-press the map with a marker picked to type in exact coordinates.
- MDJ adds its own iconsets: Public Safety Air and MDJ Hazards. Switch iconsets by swiping in the Point Dropper.
Drop a Friendly marker on your front door named “Home”, a Neutral on the nearest fire station and an Unknown on something you can't identify on the imagery. Give the Unknown a remark and a photo. Then delete all three.
Range & Bearing
- Open ≡ › Range Tools. Turn on the R&B Line (it goes yellow).
- Tap a start point and an end point. Long-press instead to measure from yourself.
- Tap the line for its radial: change units, switch to Degrees Magnetic for a compass heading, or open Details for an elevation profile.
- The R&B Circle draws range rings. Anchor it to a marker and it moves with the marker.
Measure from yourself to the nearest freeway on-ramp in feet, and give the magnetic bearing. Draw a ½-mile ring around home.
Teammate: work together
The point of TAK is everyone seeing the same picture. These drills need at least two people in different places.
GeoChat
- Contacts lists everyone on MDJ-TAK. Tap a name to chat. All Chat Rooms goes to everyone.
- A filled check next to your message means it was read. An outlined one means it was delivered but not opened. The server holds messages for people who are offline.
- The buttons under the chat box are canned messages. Long-press one to rewrite it.
- On our server, the AI teammate (MDJ Assistant) is on the team as a contact. Type it a request in chat (“draw a ¼-mile circle around me”, “where is KJ6YJR?”, “route me to the nearest hospital”) and it answers in a few seconds to a minute. It can drop markers, circles, lines and street routes for you. It can't change the server or your phone.
Send your partner a direct message with a marker attached. Your partner replies with “Pan To” on your position. Then ask MDJ Assistant to draw a ¼-mile circle around your partner.
Send, Auto Send and data packages
- Any marker, line or route has Send on its radial: to one contact, several, or everyone.
- Auto Send in Details re-broadcasts a marker about every 60 seconds. Use it for things that move or must stay on everyone's map.
- A data package bundles markers, routes, shapes and files: Data Package › + › Lasso, save, then send to contacts or upload to the TAK Server.
- Anything on the server shows up under Data Package › Download.
Lasso three markers and a route into a package named with today's date, then send it to your partner. Your partner turns it on and off in Overlay Manager.
Bloodhound and routes
- ≡ › Bloodhound: From is you, To is your teammate's dot. The green box shows live distance, bearing and ETA. The line flashes at 6 minutes, turns yellow at 3 and red at 1.
- ≡ › Routes › +: tap check points, long-press to add more, End, then GO to navigate.
Split up at least a quarter mile apart. One person stands still. The other Bloodhounds to them on foot, without talking, and calls out the ETA at each color change.
Alert and track history
- ≡ › Alert: pick 911 Alert, Ring the Bell, Geo Fence Breached or In Contact, then flip both switches. It goes to everyone and keeps broadcasting. Flip both switches off to cancel.
- ≡ › Track History records your breadcrumbs. Export as KML/GPX or publish to the server.
Only practice Alert after telling the team in chat “ALERT DRILL”, then cancel it right away.
Blue blob around your own dot at home? It's your own breadcrumbs: GPS jitter while you sit still. In Track List turn Show All off and delete the 0-mph tracks, and turn breadcrumbs off on your own marker. It isn't a shape, so the lasso won't find it.
The live picture
What's on our map that you won't find on a stock TAK server, and how to keep it readable.
Turn the noise down
- Overlay Manager sorts everything into categories. The eye icon toggles a whole layer.
- Markers › Slicer toggles by affiliation and by Air, Ground or Sea. One tap hides every aircraft.
- COP Refresh clears temporary items: other users' stale dots and old aircraft tracks.
What the layers are
| Layer | What it shows | Source |
|---|---|---|
| Aircraft | Live planes and helicopters around the home station | MDJ-AirOps receiver (1090 + 978) |
| Earthquakes | USGS quakes. Switch past hour / day / week in Overlay Manager | USGS KML |
| MDJ Home Weather | Backyard station: temperature, wind, rain | MDJ weather station |
| Caltrans cameras | Freeway cameras, most with live video. Tap one and play | Caltrans QuickMap |
| Message signs, CHP | Freeway signs and CHP incidents | Caltrans, CHP |
| Fire | CAL FIRE air intel, FIRIS perimeters, WIFIRE models, NASA FIRMS hot spots | CAL FIRE, NASA |
| Mesh tags | MDJ Meshtastic tags as markers (Level 4) | MDJ mesh base station |
| Grids | Counties, CAL FIRE units, PLSS survey grid | Public GIS data |
Find the nearest live Caltrans camera to home and play it. Find the last quake over M2.5 in SoCal and measure how far away it was. Pick an aircraft and read its callsign and altitude.
Data Sync and plugins
- ≡ › Data Sync: subscribe to the MDJ-Team mission so new packages arrive on their own.
- ≡ › TAK Package Mgmt › gear › Quick Configure Update Server URL from a TAK Server: this points ATAK at your server's plugin list. On our server that includes Meshtastic and Weather.
Off grid: the mesh
When there's no cell service, Meshtastic LoRa radios carry positions and short messages from radio to radio. This is what makes TAK work at a ski hill, a beach or a dig site in the jungle.
Pair a radio to ATAK
- Pair your Meshtastic radio to the Meshtastic app over Bluetooth, then turn on the Meshtastic plugin in ATAK.
- MDJ radios run the LONG_FAST preset on our team channel. Whoever runs your mesh sets up the radios, so don't change channel settings yourself.
- MDJ tags (MDJ0, MDJ1…) show on the TAK map through the mesh base station, even when the person carrying one has no phone.
Turn off mobile data and Wi-Fi. Walk out of sight of your partner and exchange a chat over the mesh only. Note the distance where messages stop getting through.
What to expect
- Handheld to handheld at street level: a few hundred feet to about half a mile through houses. Height wins: a radio on a roof or a hill reaches miles.
- Positions update every few minutes on the mesh, not every second. A dot that hasn't moved may simply not have updated yet.
- Keep messages short. LoRa is slow and every radio shares the air.
Your progress
Ground school + Level 1 makes you an Operator. Add Level 2 for Teammate. All four levels qualify you to teach the course. The instructor signs off by watching you do each drill without the sheet.
Written for ATAK-CIV 5.6 from the ATAK 5.4 user manual and MDJ's own TAK Server setup, October 2026. Questions: [email protected].