News Archive
Jun 28 2021: V5.0.1

Summary of what's new.

  • Fix an issue that could cause repeated traffic warnings
Jun 22 2021: V5.0

Summary of what's new.

  • Auto start selected EFB (AvPlan, ForeFlight or OzRunways)
  • Share aircraft details and flight history across your devices
  • Six months flight history
  • Improved usability for aircraft details maintenance
  • Improved new Settings view replaces the old Options view
  • Prevent repeated traffic annunciations

June 2021 promotion.

Premium trial period extended from one to six months for existing or new downloads before the end of June 2021.

See previous news item.

May 28 2021:New Features Coming Soon


The following features are scheduled to become premium features from July 1st 2021.

  • Auto start EFB (AvPlan, ForeFlight or OzRunways) *
  • Send traffic to EFB in background
  • Audible traffic annunciations
  • Support portable ADS-B receivers
  • Six months flight history *

* all new features

If you have already downloaded AvTraffic or do so before July 1st, you will get free premium access until December 31 2021.

After July 1st, the free trial period will be 1 month from download.

The subscription will be $1.99 per month or $19.99 per year (AUD) or equivalent in your local currency.

Please note that one subscription covers all your devices.


You will still be able to use AvTraffic's own traffic display without a subscription.

  • Display of all AvTraffic aircraft, ADS-B aircraft from ADSB Exchange and FLARM equipped aircraft from the Open Glider Network.
  • Colour coded traffic threat levels.
  • Specific aircraft details including closing time and recent track.
  • Your last four flights in flight history.


  • Auto start - this will remove the need to create a shortcut but you can still use the shortcut if you want. Once enabled, your selected EFB will be started when AvTraffic is in active (ACT) mode.
  • Optional sign in capability that allows you to share aircraft details and flight history across your devices.
  • Flight history will go back six months initially, but will be able to go further in future.
May 10 2021: V4.7.1

Summary of what's new.

  • Improve callsign matching for gliders in the European region
  • Stability fix for users that have external ADS-B receivers

Cater for the case where an aircraft has both a mode S transponder and a FLARM unit and the callsigns are different.

This is common for gliders in Europe where the Mode S callsign is the full registration say DABCD but the FLARM callsign is just CD.

The stability issue could occur when an external ADS-B receiver is in use resulting in JSON errors and missing aircraft type data.

Apr 10 2021: V4.7

Summary of what's new.

  • Cater for multiple sources for the same target
  • Handle server outages better
  • Show/Hide airports option

Multiple sources might occur for example where a target aircraft has ADS-B out and also active AvTraffic at the same time.

A server outage occurred back in March that lasted for two days and resulted in a continuous stream of error messages. If this occurs again, only a single error will appear and the server marked as "Down" in the status view until it recovers.

New option to show or hide airports. Airports are shown by default.

Mar 11 2021: Open Glider Network

Server Outage.

At this time the Open Glider Network live service has been down for about a day. AvTraffic has no control over the operation of this service and we are simply waiting for the service to be restored.

AvTraffic is currently showing alternately that the service is 'slow' or has a 'network error'. It is retrying the connection every couple of minutes and is continuously showing a series of warnings and error messages.

Please ignore these messages and the red cross in the status for the time being.

AvTraffic and ADSB Exchange are still working and will continue to show traffic from those sources as normal.

In a future release, server outages will only generate a warning once and reconnect when the service comes back up.

Feb 10 2021: V4.6

Summary of what's new.

  • Portable ADS-B receiver support for GDL90 compatible receivers
  • Reduce unnecessary or repeated traffic alerts
  • Fix issue with no traffic in ForeFlight
  • Show ground traffic with a brown colour
  • Change the wording of EFB status to make it clearer

If you use a portable ADS-B receiver such as the SkyEcho 2 with your EFB app, AvTraffic will now merge its own traffic sources with the receiver's traffic for a more complete picture.

To enable this, go to the Options screen and switch on the "Portable ADS-B" switch.

The status page will have an extra Service line showing the receiver and its target count. Don't forget you need to be connected to the receiver's WiFi network.

Jan 4 2021: V4.5

Summary of what's new.

Some significant updates to altimetry.

Devices with a barometer now report pressure altitude as well as GNSS altitude. This enhances vertical separation with ADS-B traffic.

All altitudes are rounded to 100 feet with a prefix -

  • A = altitude AMSL on local QNH,
  • F = pressure altitude, QNH 1013 or
  • G = GNSS altitude.

For example, G010 means 1000' GNSS or GPS, A010 means 1000' AMSL on local QNH.

Oct 25 2020: Live Page

AvTraffic Live Information Page.

See live traffic, current and recent flights, get a METAR or decode any airport code globally.

Click the LIVE menu on the AvTraffic website.

Oct 12 2020: V4.4

Summary of what's new.

  • Faster ADS-B traffic interface
  • Tap an aircraft or airport on the map for more details
  • Selected aircraft shows its track
  • Pinch to zoom


ADS-B Exchange has a new interface that reduces the time delay of displayed aircraft positions.

Extra detail for selected aircraft includes the closing time if the aircraft is closing plus its bearing and distance. The closing time is coloured blue, yellow or red as per the map symbols. On the map, see the aircraft's prior track.

Use a pinch gesture to zoom the traffic display. Use the zoom buttons to zoom to preset levels.

Oct 11 2020: Using the Right Mode

Use Active Mode When Flying.

When you use AvTraffic while flying, don't forget to select your aircraft and select active (ACT) mode.

Use the toolbar buttons at the top right to select your aircraft and mode. Refer to the app's Help tab for more.

Sep 21 2020: iOS 14

Additional privacy settings in iOS 14.

Please note that after upgrading to iOS 14, you will be asked to permit AvTraffic to "Access devices on your local network".

This is referring to the connection AvTraffic requires to send traffic information to AvPlan or OzRunways. You need to allow this in order to continue to send traffic between apps.

You will get asked the same question when you first run OzRunways or AvPlan and you need to allow this for them too.

You can change this in Settings/Privacy/Local Network.

Sep 14 2020: V4.3

Summary of what's new.

  • Global METARS – see nearest METAR on the status view
  • This makes the pressure altitude calculation more reliable
  • EFB interface now uses GDL90 exclusively


On the status view you can now see the METAR for the nearest airport that has one.

Please note that METARs are only updated hourly and as such may not be the latest for the given airport. The information is provided for reference only and must not be used for making operational decisions.

The app is now using the QNH to convert between GNSS and pressure altitude internally.

The pressure altitude is now displayed as a flight level (Fnnn).

The EFB interface for sending traffic now uses the GDL90 protocol exclusively. The old dump1090 protocol is no longer available.

This means that the EFB configuration steps defined for previous releases is no longer necessary.

Aug 12 2020: GDL90

AvTraffic is now able to send traffic to any EFB using the GDL90 protocol.

This is great if you're a new user because you won't need to configure OzRunways or AvPlan with the special IP address as previously documented.

However, for the time being, you will need to go to the Options view in AvTraffic and switch on "Use GDL90 for EFB".

In the next release, GDL90 will be standard for all users.

PS - Don't forget to select active (ACT) mode when you're flying.

Jul 31 2020: V4.2

Summary of what's new.

  • Distinguish between pressure altitude and GNSS altitude appropriately
  • Send pressure altitude to EFB instead of GNSS altitude
  • Show pressure altitude details on the status view
  • Show flight level for aircraft above the transition altitude
  • Rename Description field on aircraft details to Make/Model
  • Auto select the first aircraft entered


External ADS-B receivers report pressure altitude. Because of this, EFB apps need to adjust altitudes for local QNH.

In the past, AvTraffic has always dealt in GNSS altitudes and passed them directly to the EFB app.

In this release, AvTraffic now converts GNSS altitude to pressure altitude before passing it to the EFB app so it ends up being correct.

In order to do this, AvTraffic uses available ADS-B data from from nearby aircraft. You can monitor this on the Status View.

July 1 2020: Geoscience Australia - Precise Positioning for Smartphones

Centimetre-level positioning for smartphones

This month, Geoscience Australia in partnership with FrontierSI, University of Otago and RMIT have started investigating the issues and challenges to enable precise positioning for smartphones.

Over the next 2 years, they will be working toward obtaining centimetre-level positioning on mobile phones.

At the moment the team is going through a process of deciding which phone to test first and will be looking at how to manage data quality. Stay tuned for more developments as they come.

June 19 2020: CASA Approval for Portable ADS-B Out

AIP SUP H65/20 ADS-B Standards for VFR Aircraft.

From July 16th, VFR aircraft in Australia not equipped with ADS-B Out will be able to use Electronic Conspicuity (EC) devices such as the Sky Echo 2 which sells for AU$900.

This will allow VFR aircraft in class G airspace to be seen by ADS-B In equipped aircraft including AvTraffic users.

Read the full AIP SUP here.

Read about the Sky Echo 2 here.

May 29 2020: V4.1

Only bug fixes in today's release.

  • Fix possible app crash during launch after upgrade from V3.x
  • Fix possible repeated traffic warnings when GPS weak
  • ADSB traffic altitude now AMSL rather than PA
May 13 2020: V4.0

Summary of what's new.

  • Redesigned traffic monitor now calculates alerts for traffic based on closing speed and time rather than distance
  • Spoken traffic alerts available when the device is connected to your audio system or headset
  • History view shows key details of the last five flights
  • Traffic view toolbar button changes - "Not Sharing" (NS!) becomes "Standby" (SBY)
  • Optional description for my aircraft


The traffic monitor in V3.4 and earlier creates traffic alerts based on distance alone.

Now, based of the aircraft's speed and track, it becomes a high alert when the closing time is less than a minute instead of a distance of two miles. If it is tracking away, no alert is raised even if it is close by.

If you have connected audio, the alert is spoken using a speech synthesizer instead of just a tone.

The spoken alert takes the form -

"Traffic - [distance in miles] [clock bearing] high/level/low"

The new history view shows the departure and destination points and times and the distance travelled.

The old aircraft selection button has been split into two, one to select the current aircraft being flown and a second button to select the mode - Active or Standby. This makes operating the app more like operating your transponder.

The Start/Stop button has been removed and both the Filter and Orientation buttons are now on the left.

Lastly, you can add a description to your aircraft. For example if you fly an AP22, you can set the description to "Aeroprakt Foxbat" which should be more meaningful to other users.

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