When Magellan Systems Corporation launched the first commercially successful handheld GPS receiver for consumers in 1989, what military technology restriction affected its marketing and capabilities?

The intersection of military technology and product marketing has shaped our world in countless ways. Many everyday technologies we now take for granted began as military innovations before being marketed to civilian consumers. This poll explores an important milestone in navigation technology that transformed from a military advantage to a consumer product revolution through strategic marketing and positioning.

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Selective Availability (SA) - a deliberate degradation of public GPS signals that limited civilian accuracy to about 100 meters
Frequency limitations that required civilian GPS to use different satellite bands than military versions
Battery technology restrictions that limited civilian units to 30 minutes of operation
Encryption requirements that made civilian GPS units three times larger than military counterparts