INTL 3:770/1 3:770/3   
   REPLYADDR invalid@invalid.invalid   
   REPLYTO 3:770/3.0 UUCP   
   MSGID: <9bse0j956bh9pid02umolnag9a33gcboco@4ax.com> 08e172f5   
   REPLY:  cfe99e42   
   PID: SoupGate-Win32 v1.05   
   CHRS: LATIN-1 2   
   On Fri, 29 Mar 2024 10:49:13 +0000, in ,   
   The Natural Philosopher  wrote:   
      
   >Maybe ascii art will help   
   >   
   >CONTROL=10µs   
   >____| |________   
   >   
   >RETURN = wahatever   
   >_____|^^^^^^^^^^^^|____________   
   >   
      
   Assuming my bleary-eyed math is correct, 10µs is the length of one   
   cycle of ultrasound at 100,000 Hz.   
      
   So what frequency is your ultrasound? Maybe some ASCII art - to scale   
   - of the waveform going down and back will reveal something.   
      
   I admit total ignorance to whether your devices can send sound and   
   receive at the same time, etc, etc, so this is my last potentially   
   annoying input. Good luck.   
      
   Spent many an evening with Z-80 assembler back in the late 70s. Good   
   times.   
      
   --   
   Jim H   
      
   --- SoupGate-Win32 v1.05   
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