Today's Garmin® GNC® 300XL TSO takes its place
with other navigation and communication pioneers, combining a
powerful 12 parallel channel receiver with a 760 channel VHF transceiver
with a C129a, A1 IFR certified moving map GPS/comm. This marries
two of Garmin's product development strengths: crisp, high-detail
moving map technology and Garmin's legacy of proven, approach-certified
IFR GPS receivers.
The GNC 300XL TSO's Moving Map is exceptionally sharp, with the
familiar yellow-on-black DSTN (doublesuper twist nematic) LCD
display that won rave reviews in the VFR-only GPS 150XL and GNC
250XL. Individual pixels in these displays are transparent to
the viewer, and SUAs actually appear as curved rings, with easily
distinguishable alphanumeric characters and a high-resolution
display that's readable from every angle in all lighting conditions.
A photocell in the display automatically controls the intensity
of the backlight and will reverse the display from black-on-yellow
to yellow-on-black for maximum contrast in daylight or nighttime
viewing. Aviators can also choose to make these adjustments manually
depending on their individual preferences.