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Suppose there is a 10 Mbps microwave link between a geostationary satellite and its base station on Earth. Every minute the satellite takes a digital photo and sends it to the base station. Assume a propagation speed of $2.4 \times 10^8 $meters/sec.

- What is the propagation delay of the link?

- What is the bandwidth-delay product, $R \times d _{prop}$?
- Let x denote the size of the photo. What is the minimum value of x for the microwave link to be continuously transmitting?