Homework 5, question 1 clarification.

I've rewritten question 1 on homework 5 to clarify it in response to a couple
of questions I've received:

  Radio antennas work best when the antenna diameter is equal to the wavelength
  of the radio wave its designed to receive. Determine appropriate antenna
  diameters for receiving 1) AM, 2) FM, and 3) cell phone transmissions. You
  may consider a representative frequency from each bandwidth, or a pair of
  frequencies representing the bandwidth's frequency range.

Let me know if you have any questions.