Hi Tom!  
    
  As you posted ...  
    
   TW> That is true. Except in energancies we maintained radio silence when  
   TW> on partol. And receptionof traffic was VLF. The subs used a  
   TW> floating wire antenna that could be trailed out of the rear of the sail  
   TW> structure. It was retracted when no needed. Transmissions were on HF  
  and  
   TW> there was a retractable, like  Periscope, antenna that was used at  
   TW> periscope depth.  
   TW> In my day they experimented with burst transmissions. I am sure in this  
   TW> computer they are a little more hi tech but in my day they used a reel  
   TW> to reel tape deck. The radioman prepaired the message and put it on the  
   TW> tape with cue marks for triggering the transmitter. The tape deck was  
   TW> run at FAST forward speed and sent the message  
    
  Bet this will be also fascinating to you!  My cousin Bobby Dunkin was an  
  original telecom expert back in even the end of WWII into the 50's.  As a  
  kid  
  my Dad forbid us from even having a television set where I grew up in  
  College  
  Station, Texas until one of my uncles, Bill Schuster, who was actually part  
  of  
  the creation of the original Emerson operation and at that time the largest  
  competitor to Allied Radio -forced us- to have a TV set in my parents home  
  here so Dad could watch Armstrong set foot on the moon!  I watched that TV  
  with my Dad and Mother for that episode here in the now Historic House.  As  
  fact, that black and white TV set has been donated to the Children's Museum  
  in  
  Bryan, Texas for their exhibition of how TV came to here over uears and  
  years.  
    
  As for my first TV view ever, it was up in Erie, Pennsylvania on WICU-TV  
  where  
  Bobby was creating this stuff.  My first TV ever seen was actually on a  
  Hallicrafters 7-inch black and white relay rack TV set in my Uncle Bobby's  
  house there during our 'normal' visit to Erie every summer. Leap forward!  
    
  Bobby wound up as part of the engineering operation and was involved in the  
  VLF naval communication design for submarines at sea.  He was a part of the  
  design team for the antenna system which was used to punch the VLF signals  
  into the Pacific ocean for I think exactly what you are talking about.  He  
  eventually retired from his job up in the Dallas, Texas area long ago.  
  Passed  
  away a number of years ago.  
    
    
  Mike Luther as N117C at 1:117/100  
    
  ---  
   * Origin: BV HUB CLL(979)696-3600 (1:117/100)