Steps:

Go to https://allstarlink.org/voterpal/
Download the following files to a folder on your

VoterPal.jar
Contents of /lib into a folder called lib
Download a test vot file from datafiles folder.

Double click on VoterPal.jar and the application should open. File > Open your .vot file and then press play. You'll hear the recorded audio and the resulting RSSI and voted receivers on the right.

I'll add to this to the wiki when I get an account :).