A Data Rate Problem
Problem DataFile4P03

Name_______________________________

        Voice signals are another example of signals that are converted to digital forms.  You can use a phone line to transmit digital signals.

• The theoretical limit on what a phone line can transmit is 33.6 kilobits/sec.
• That's 33.6/8 = 4200bytes/sec.
• You are making voltage measurements that can be taken very quickly - up to 100,000 measurements/sec.
• If the voltage measurements are encoded into characters  in the form xx.yyy, how many measurements can be transmitted per second over the phone line?
• Assume that you transmit a delimiter after every voltage measurement.
• If you have the option of sending double floating point (64 bit) data, can you get a faster data rate?  What is the new data rate (measurements/second)?
• In this situation, you send the 64 bits with no delimiters and no CR or LF.
• If you can get 50 kilobits/sec what would the new data rate be for the character format?