What type of power source does the AN/PSN-13 (DAGR) utilize?

The AN/PSN-13, also known as the Defense Advanced GPS Receiver (DAGR), is designed to operate between a voltage range of 9 to 32 volts direct current. This capability allows it to function effectively in various operational environments and situations, providing flexibility in how it can be powered. The range suggests that it can be used with different types of external power sources, such as vehicle power systems or other compatible DC power supplies, enhancing its usability in the field.

While other options might imply alternative power methods, such as solar or battery types, they do not accurately reflect the DAGR's primary operating power source. The design focus on a direct current input ensures reliable performance, especially in military applications where dependability and versatility in powering equipment are critical.