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???
06/29/05 21:38
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#96247 - not really
Responding to: ???'s previous message
Sounds like he is the boss from Dilbert! You can't determine cost until you have a known working design.
Not really, one important design parameter is cost. If you do not know max cost up front, you may spend weeks designing something that is not feasible. That this often result in an answer "impossible" is another thing. If you do not have a cost target, you may propose a Cadillac when the customer can only afford a small Chevy.

Anyhow at 8000 units, I do not think the cost target of $20 is totally ridiculous, although he may save money by building 10.000 instead (has happened to me).

What Christion need to do is to make some experiments with transmit in one end of the wire and receieve at the other (careful with them fingers).

Erik


List of 75 messages in thread
TopicAuthorDate
Power Line Channel            01/01/70 00:00      
   broadcast in noise            01/01/70 00:00      
      Broadcast Vs Addressing            01/01/70 00:00      
   erk            01/01/70 00:00      
      Just some things            01/01/70 00:00      
      Got it            01/01/70 00:00      
         Horses for Courses            01/01/70 00:00      
   just curious, why not a photocell at eac            01/01/70 00:00      
   Radio            01/01/70 00:00      
      Zigbee?            01/01/70 00:00      
         great minds think alike            01/01/70 00:00      
   you have my deepest sympathy            01/01/70 00:00      
      Baby steps            01/01/70 00:00      
   and..            01/01/70 00:00      
      Connection            01/01/70 00:00      
         Hmmm            01/01/70 00:00      
            MSN            01/01/70 00:00      
            Nop            01/01/70 00:00      
               K k            01/01/70 00:00      
                  kilometer            01/01/70 00:00      
                  what would he mean?            01/01/70 00:00      
                     Binary            01/01/70 00:00      
         Is no guess, is only know.            01/01/70 00:00      
            Mexico            01/01/70 00:00      
   X10 -like            01/01/70 00:00      
   Actualization            01/01/70 00:00      
      K k            01/01/70 00:00      
         kHz            01/01/70 00:00      
         Andy Neil alias Mr. Perfectionist !!            01/01/70 00:00      
      X10 like            01/01/70 00:00      
         Pulse position?            01/01/70 00:00      
            Existing systems            01/01/70 00:00      
               Pulse position            01/01/70 00:00      
                  Yes            01/01/70 00:00      
   AT89S8252 : lcd            01/01/70 00:00      
      Huh?            01/01/70 00:00      
      Off-Topic            01/01/70 00:00      
      impedance matching            01/01/70 00:00      
          I see dead computers            01/01/70 00:00      
            file transfer using power lines            01/01/70 00:00      
   X2 Rated            01/01/70 00:00      
   RF switching            01/01/70 00:00      
      Try it !            01/01/70 00:00      
         Ya, sure            01/01/70 00:00      
      $200?            01/01/70 00:00      
         Not necessarily Xbee            01/01/70 00:00      
   another solution            01/01/70 00:00      
      well...            01/01/70 00:00      
         maybe...            01/01/70 00:00      
            mains born network            01/01/70 00:00      
               8000 pieces            01/01/70 00:00      
                  re:            01/01/70 00:00      
                     not really            01/01/70 00:00      
                        re:cost            01/01/70 00:00      
                  Cost?            01/01/70 00:00      
                     Cost            01/01/70 00:00      
   SNR            01/01/70 00:00      
      BER            01/01/70 00:00      
         checksum to the hilt            01/01/70 00:00      
            CRC, not checksum            01/01/70 00:00      
               Duplex            01/01/70 00:00      
                  if he can afford an occasional miss            01/01/70 00:00      
                     checksum            01/01/70 00:00      
                        checksum and short            01/01/70 00:00      
                           Test set            01/01/70 00:00      
                              1143.12345 Hz            01/01/70 00:00      
                                 maybe once in a year            01/01/70 00:00      
                                    Idea CRC            01/01/70 00:00      
                                 SNR ?            01/01/70 00:00      
                                    Frequency            01/01/70 00:00      
                                       Lower frequencies            01/01/70 00:00      
                                          Noise Floor            01/01/70 00:00      
         10%            01/01/70 00:00      
         Data Rate            01/01/70 00:00      
         re:10% error rate            01/01/70 00:00      

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