EchoHam version v2.26 has been released
EchoHam allows Amateur Radio operators to use the Echolink network from their Mac. You must be a licensed Amateur Radio operator to use this software.
Echoham, the OS X client for Echolink operation has been updated to version 2.07 and is now available in the OS X App Store.
Whats new in version 2.26:
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External PTT switch connection via USB-RS232 converter CTS signal line
Echoham is a free download and can be obtained from the Apple App Store.