From: rking164@comcast.net   
      
   Emulation of communication waveforms   
   Abstract   
   An apparatus is comprised of a processor, a tuning voltage generator, a tuning   
   circuit, an amplifier, and a voltage-controlled oscillator (VCO). The   
   processor generates a tuning voltage command and a modulation command signal.   
   The tuning voltage    
   generator, coupled to the processor, receives the tuning voltage command and   
   generates a baseline analog tuning signal based on the received tuning voltage   
   command. The amplifier, coupled to the tuning voltage generator, receives the   
   baseline analog    
   tuning signal and the modulation signal, and generates a tuning signal based   
   on the received baseline analog tuning signal and the received modulation   
   command signal. The VCO, coupled to the amplifier, receives the tuning signal,   
   generates a modulated    
   radio frequency output signal based on the received tuning signal, and outputs   
   the modulated radio frequency output signal, the modulated radio frequency   
   output signal emulating a communication waveform   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)