The GNC-255A represents the current state of the art in NAV/COMMs. Radios like the KX-155 are solid, trusted, and still popular to this day. The SL-30 stepped up the convenience considerably, with features like automatic decoding of the Morse code station identifier, a built-in Course Deviation Indicator (CDI), and the ability to monitor a second frequency without leaving the first frequency.

The GNC-255A takes convenience to the next level. It would be a fantastic #1 NAV/COMM. It would also be a very good backup to a GPS/COMM, providing redundant COMM Transceiver capability and VOR/Localizer/Glideslope navigation.

Here are some of the most helpful and innovative features:

Database Tuning - When you enter an airport or navaid identifier, the GNC-255A looks up available frequencies from an internal database. This database may be updated using a hidden connector on the faceplate. (There is no need to remove the radio for an update.)

Proximity Tuning - The GNC-255A may be connected to a GPS for position information using a standard RS-232 signal. This allows the GNC-255A to provide you with frequencies useful for your location. The 25 nearest airports, VOR, Center (ARTCC), Flight Service Station (FSS), and Weather (WX) frequencies are all at your fingertips.

Usage Tuning - The database remembers the 20 most recently used COMM and NAV frequencies. The more you use a frequency, the less often you will need to tune it manually.

Morse code decoding - Not only will the GNC-255A decode the Morse code automatically, it will also display the identifier from the database.