Download of EchoMac 1.16.3 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The software is included in Audio & Video Tools. The most popular versions among EchoMac for Mac users are 1.16 and 1.1.
We recommend checking the downloaded files with any free antivirus. This free Mac app was originally developed by Brett Murphy. Echomac-1.16.dmg and echomac-1.16.3.dmg are the most common filenames for this program's installer. This program's bundle is identified as net.sourceforge.echomac.
From the developer:
EchoMac is a client program for OS X that allows connection to the Echolink system. It is built as a Universal Binary, and works on OS X 10.3.9, 10.4.11, 10.5.x, or 10.6.x.
The first time you use the Echolink network, you will need to verify your callsign.
You may want to check out more Mac applications, such as VideoMonkey, 4Media Video Converter Ultimate or Xilisoft iPhone Ringtone Maker, which might be related to EchoMac.