sockopen radio <here youre adress> <here youre port>

Should be:

  if ($sock(radio)) sockclose $v1
  sockopen radio <here youre adress> <here youre port>

Cheiron, I haven't tried this script, but try adding this under the on sockopen line:

if ($sockerr) echo -a Error: $sock($sockname).wsmsg

And Foutjuh, $chan is $null in an alias btw so you can't set/use that var.