From: noemail@nowebsite.com   
      
   the AO51 satellite common know as "Bird", is a FM repeater,one is Downlink   
   and uplink known as "pairs" Ham repeaters are found mainly in the VHF two   
   meter (144 - 148 MHz) and the UHF 70 centimeter (420 - 450 MHz) bands   
      
      
   http://en.wikipedia.org/wiki/Amateur_radio_repeater   
      
   but I still do not solve what made up a repeater in a schematics, I am not   
   intend to build a repeater out of the question.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)