Hi,
Just wanted to share with you a case which is useful to me: How to sync the frequencies of Linrad and Hamlib rigctld.exe over the internet.
The aim for me was to transmit from my home in the city and to a have a remote Linrad running at a quiet location which is following the frequency of my Rig. When I transmit I use my radio in the city, but then I listen on the remote Linrad. Here is a video demonstrating how it works.