1. Use the Web to find the definition of the DCE and DTE pinouts used on a DB-25 connector. (Hint: pins 2 and 3 are transmit or receive.) On a DCE type connector, does pin 2 transmit or receive?
2. Is a modem classified as DTE or DCE?
3. When using amplitude modulation, does it make sense for a 1 Hz carrier to be modulated by a 2 Hz sine wave? Why or why not?
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