Hi Alan, Ctrl-A sends the spot only to other networked TLF nodes, hence the "de TLF-A" where "A" is the node id (1st node).
man page says: Ctrl-A Add a spot to bandmap and broadcast it on the local network. To send to the actual cluster network Ctrl-B can be used. For actual spotting purpose IMO it's practically unusable as one has to type in a correctly formatted (raw) spot. On the other hand one can post with it any other kind of message, provided the cluster accepts it... 73, Zoli