Z3815A, top edge and front view (10811A for scale):

Rear view showing I/O, power, and antenna connectors (10811A for scale):

Font panel:

Bottom view:

Top view (cover removed):

Close-up view of E1938A oscillator:

Side view of thin oscillator mezzanine board above motherboard:

HP Z3815A GPS receiver (with 10811A for scale):
