Hi,
not sure if this will appears twice, I posted it an hour ago but does not appear in this thread.
I have the Sonar Course and Advanced Sonar Course by Rodney Coates (a worldwide authority in sonar design). Full of both theory and practice.
I bought it years ago directly form him for around £600 but never really used it. So I am selling it.
Anybody interested? Open to any offer. I don't care about the amount and if you want you can even send the money to a charity of your choice instead of me. I just don't want to throw it away given how much it was paid for it.
Thank you