Hi Wrecker,
Apologies if you have already seen the post but this might be of interest?
Russian Navy but probably one of the last air-to-ground / ground-to-air Morse networks still in regular daily use?
8816 16405 QTO (Russian Naval Aircraft Morse Code) by TOMTEEJ on SoundCloud - Create, record and share your sounds for free
A few more recordings of the Morse net at the following.
http://www.pprune.org/military-aircr...ml#post7117926