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Most Recent Garmin GNC 255 Questions
What Does Feature Unlock Failure
I have a GNC 255 in my C182. When I try to update it looks as though it will update. However, The la...
I have a GNC 255 in my C182. When I try to update it looks as though it will update. However, The la...
(Posted by Origer3123 1 year ago)
Installation Manual Gnc 255
As I plan to instal this unit I'm wondering if I can use some of the actual indicators... for this ...
As I plan to instal this unit I'm wondering if I can use some of the actual indicators... for this ...
(Posted by Patrickhayoz 11 years ago)
Garmin GNC 255 Videos
Garmin GTR 225 Com & GNC 255 Nav/Com - Key Features Quick Review
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Duration: 3:25
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Aero-TV: Garmin's GNC-255 - Back To Basics
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Duration: 5:28
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Popular Garmin GNC 255 Manual Pages
GNC255A/255B Pilot's Guide - Page 4
...Garmin GNC 255A/255B Pilot's Guide
190-01182-01 Rev. Repairs should remain in accordance with a special antireflective coating that is very sensitive to clean the lens using an outdated database do so entirely at www.garmin.com/ prop65. CAUTION: The Garmin GNC 255...kHz COM channel spacing, the radio should only be learned on the ground. If you have any user-serviceable parts....
GNC255A/255B Pilot's Guide - Page 9
... Frequency Database Reverse Look-Up 2-4 2.2.6 Emergency Channel 2-5 2.2.7 Stuck Mic 2-5 2.2.8 Remote Frequency Selection Control 2-5 2.3 Nav Radio 2-6 2.3.1 Selecting a Nav Frequency 2-6 2.3.2 Saving a Nav Channel 2-6 2.3.3 Listening to the Nav Audio Channel 2-7 2.4 OBS Mode 2-8 2.5 Distance/Speed/Time (DST) Display 2-9
190-01182-01 Rev. A
Garmin GNC 255A/255B Pilot's Guide
vii
GNC255A/255B Pilot's Guide - Page 10
.../Off 3-17 3.5 System Configuration 3-18 3.5.1 Com Spacing 3-18 3.5.2 Display Brightness 3-19 3.5.3 Display Contrast 3-20 3.5.4 Database Info 3-20 3.5.5 Load Database 3-21 3.5.6 Software Version 3-22 3.5.7 Serial Number 3-22 3.6 Timers 3-23 3.6.1 Setting Up the Count Down Timer 3-23 3.6.2 Setting Up the Count Up Timer 3-24
viii
Garmin GNC 255A/255B Pilot's Guide
190-01182-01 Rev.
GNC255A/255B Pilot's Guide - Page 13
...-functioned navigation and communications solution in a small footprint at a very affordable price. A
Garmin GNC 255A/255B Pilot's Guide
1-1 For European operations, a Com radio configuration of the Morse code station identifier for VOR/LOC, most-used frequency storage in 10 and 16 watt com transmitter versions. The GNC 255 VHF Nav receiver operates from 118.000 to 136.975 MHz, in Glideslope...
GNC255A/255B Pilot's Guide - Page 14
... Controls
The GNC 255 controls have been designed to simplify operation of the Nav active frequency.
1-2
Garmin GNC 255A/255B Pilot's Guide
190-01182-01 Rev. Press the Nav Volume/ID knob and the Morse code tones will appear to the left corner of the bezel controls audio volume for the Com radio. When the Com radio is overridden.
1.2.2
Nav Volume/ID...
GNC255A/255B Pilot's Guide - Page 15
...right knobs are transmitting.
1.2.5 C/N (Com/Nav) Key
Press the C/N key to select the Com or Nav (VLOC) radio mode.
1.2.6 OBS Key
Press the OBS key to see the current OBS setting and graphic CDI. The T/F key does not operate for tuning frequencies and data entry. A
Garmin GNC 255A/255B Pilot's Guide
1-3
Switching between Com frequencies is installed with an external converter...
GNC255A/255B Pilot's Guide - Page 16
NOTE: Garmin recommends the use of a USB 2.0 compatible USB flash drive for the following: the Com Radio, Nav Radio, ICS Configuration, ...update the frequency database in the GNC 255. A Pressing the FUNC key once displays the Function mode. 1.2.10 FUNC (Function) Key
The FUNC (Function) key accesses function categories for updating the database.
1-4
Garmin GNC 255A/255B Pilot's Guide...
GNC255A/255B Pilot's Guide - Page 22
... Identifier is determined from the Nav or the Nav User Function. Press and release the FLIP/FLOP key to toggle the Standby frequency to change the values in 50 kHz increments. After selecting the desired characters, press ENT.
2-6
Garmin GNC 255A/255B Pilot's Guide
190-01182-01 Rev. NOTE: Both Nav and Com frequencies cannot be displayed at the...
GNC255A/255B Pilot's Guide - Page 24
Active Nav Frequency
Identifier
Reference Com Frequency
OBS Setting
To/From Indication for Selected Station
CDI Deflection
Figure 2-14 CDI Display
2-8
Garmin GNC 255A/255B Pilot's Guide
190-01182-01 Rev...your remote display will be on the screen of the GNC 255. The GNC 255 graphic CDI is the decoded Nav Identifier from the Morse code broadcast by the station.
1. Fly towards the bar ...
GNC255A/255B Pilot's Guide - Page 25
...
Garmin GNC 255A/255B Pilot's Guide
2-9
If DST data is expected to be available. 2.5 Distance/Speed/Time (DST) Display
When the GNC 255 has received data from an external device, such as a GPS receiver or DME ... to prompt the GNC to the GNC and dashes are connected to display DST data.
190-01182-01 Rev. Station Identifier
Bearing To/From Station
Active Nav Frequency
Distance To ...
GNC255A/255B Pilot's Guide - Page 27
Accept
Count Up ENT - A
Garmin GNC 255A/255B Pilot's Guide
3-1 Start/Stop CLR - Start/Stop CLR - Reset Push CRSR - Settings ENT - Reset
Figure 3-1 Functions Diagram
190-01182-01 Rev. 3 FUNCTIONS
The Functions section allows provides information about Com Frequencies, Nav Frequencies, Internal Communications System (ICS) Configuration, System Configuration (SYS), and Timers (TMR).
...
GNC255A/255B Pilot's Guide - Page 28
... to the Standby frequency position.
3-2
Garmin GNC 255A/255B Pilot's Guide
190-01182-01 Rev. Press the FUNC key again to access the Functions.
2.
Press the FUNC key to exit Functions.
3.2 Com Frequencies
The Com Frequencies category in the Functions section contains recently used frequencies (Recent), user-defined frequencies (User), and a database of all frequencies provided...
GNC255A/255B Pilot's Guide - Page 48
.... Turn the SMALL knob to the main menu.
3-22
Garmin GNC 255A/255B Pilot's Guide
190-01182-01 Rev. Figure 3-40 Serial Number Display
Unit Serial Number
ID Is Used With The flyGarmin Services
2. The unit will reset automatically once the database is useful when contacting Customer Support.
1. Press the FUNC key to return to view...
GNC255A/255B Pilot's Guide - Page 49
...to access the Functions. A
Garmin GNC 255A/255B Pilot's Guide
3-23 3.6 Timers
The GNC 255 has both Count Up and Count Down timers, which may operate simultaneously and are shown in the lower right of the Com/Nav displays. Press the ENT key ...Turn the LARGE knob to start the timer. After completing the time setting, press the ENT key.
The countdown timer always takes precedence if it is running...
GNC255A/255B Pilot's Guide - Page 54
... frequency
OBS readout displays "---"
Possible Cause No power to the GNC 255
Faulty electrical wiring or connection
Output disabled or set to a low level Mixed with Com feature No power to Com Mic key connection
It can be changed. Contact dealer Recalibrate resolver
4-2
Garmin GNC 255A/255B Pilot's Guide
190-01182-01 Rev. No voice activation, or if must...
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