Before venturing out into the field, please read our User's Guide for all the information you should need on the recorder kit, how to use it and how to send in the data. There is a guide for each type of recorder.
If you have a Wildlife Acoustics recorder, which looks like this:
Please read the CallTrackers User's Guide for the Wildlife Acoustics Recorder version 2025.8.8 ( PDF).
Wildlife Acoustics recorders are held at the Smithton, Launceston, Lake St Clair, Hobart and Whitemark distribution centres.
If you have a Titley Scientific Chorus recorder, which looks like this:
Please read the CallTrackers User's Guide for the Titley Chorus Recorder version 2025.8.8 (PDF).
Titley Scientific Chorus recorders are held at the Devonport, St Helens, Hobart and Queenstown distribution centres.
Also, the CallTrackers Facebook group is intended as a forum for hints and questions.
Unfortunately, you're not alone! We're working on a better solution but in the meantime, here are a couple of common issues and things to try.
There could be several reasons for this. The amount of data collected in a CallTrackers observation is about 10GB. As a very rough rule-of-thumb, expect the upload rate to be 1 hour per GB for a good connection. So if WeTransfer tells you the upload is going to take 10 hours, everything may be working just fine! The upload speed will vary depending on the quality of your connection, your service provider , whether you use a firewall or VPN.
For more information and things to try, see the WeTransfer Troubleshooting page. In particular:
Use a service like speedtest.net to see what your upload rates are like (set the server to New York as the WeTransfer servers are in the USA). If you're using a VPN or firewall, try turning them off and see if you get an improvement.
Make sure your files are on a local drive and not an external drive, USB or in the cloud (e.g. in a Dropbox, Google Drive or OneDrive).
The solution here is to temporarily turn off your computer's sleep settings while the transfer is taking place. If you're using a laptop, make sure it's plugged in to external power. Here's how to do that for Windows and MacOS
Microsoft Windows
Windows 10
Go to Settings > System > Power & sleep and under Sleep set "When plugged in, PC goes to sleep after" to "Never".
Windows 11
Go to Settings > System > Power & battery and under Screen, sleep and hibernate timeouts set "Make my device sleep after" to "Never".
When the transfer is complete, change your setting back to what they were before.
Mac
There are at least a couple of options here:
From System Settings, prevent your Mac from going to sleep. See Set sleep and wake settings for your Mac on the Apple Support page.
Install a third-party app like Amphetamine. It's free and makes the whole process of turning on and off the keep-awake function very easy.
You can send your data using a cloud sharing service like Dropbox, Google Drive or OneDrive.
Alternatively, you can mail the data in on a USB drive or even hand deliver a USB drive if that's practical. We'll copy the data and send the drive back to you.
Please get in touch to arrange either of these.