GPS is expensive because it is a very slow communication channel - you need to communicate with three or four satellites for an extended duration at 50 bits per second.

In this quote, Robert Love explains why GPS technology is relatively expensive compared to other communication systems. He highlights that GPS operates through communication with multiple satellites, typically three or four, which transmit data at a very slow rate—only about 50 bits per second. The slow data transfer, combined with the need for a consistent connection over an extended period, contributes to the high cost of maintaining and operating the GPS system. Love’s point underscores how technological limitations such as bandwidth and satellite communication impact the cost structure of GPS services.

The origin of this quote lies in Love’s background as a technology expert and his understanding of communication networks and the intricacies of satellite technology. By pointing out the slow speed of GPS communication, he draws attention to the unique challenges faced by satellite-based systems in providing accurate and reliable services. This slow data transfer is one of the reasons GPS systems require complex infrastructure and significant maintenance, leading to higher costs for both the developers and users of the technology.

Love’s comment also reflects a broader understanding of the balance between technology, efficiency, and cost. While GPS is an incredibly valuable tool for navigation and positioning, its technical requirements and slow communication speeds mean that it cannot be as inexpensive or as fast as other communication systems like mobile data or Wi-Fi. This highlights the trade-off between the usefulness of the service and the resources needed to maintain it.

Ultimately, this quote offers insight into the technical complexities of GPS systems and why they remain costly despite their widespread use. It serves as a reminder that even the most innovative technologies often involve limitations that directly impact their economic viability, requiring ongoing investment in infrastructure and innovation to improve their functionality and reduce costs over time.