Garmin GTR 225 GTR 255/255A/255B Pilot’s Guide - Page 20

3-2

Garmin GTR 225/225A/225B Pilot’s Guide

190-01182-00

Rev. A

1. Press the

FUNC

key to access the Functions.

2. Turn the

LARGE

knob to select the COM, ICS, or SYS functions.

3. Turn the

SMALL

knob to view the choices in each function.

4.

Press the

ENT

key to access the function.

5.

Press the

FUNC

key again 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 in the standard default memory (Database).

3.2.1

Recent Com Frequencies

The last 20 Com frequencies used are kept in the list of Recent Com

Frequencies and can be accessed in this function.

NOTE

:

When switching from 8.33 kHz to 25 kHz mode, any 8.33 kHz-

speciﬁc user frequencies will be deleted from the user frequency list. This

only affects the user frequencies within the 8.33 kHz spectrum.

1. Press

FUNC

to access the Functions. Turn the

LARGE

knob to

select the Com Function. Turn the

SMALL

knob to view the

Recent frequency function. Then, press

ENT

.

2. Turn the

SMALL

knob to select an Entry (1-20).

Turn SMALL Knob

To Select Entry

Selected Frequency

Press ENT to Make the Selected

Frequency the Standby

Press <-> To Make the

Selected Frequency The

Active Frequency

Figure 3-2

Recent Com Frequencies

3.

Press and release the

FLIP/FLOP

key to transfer the displayed

channel to the Active frequency position. Press the

ENT

key

to transfer the displayed channel to the Standby frequency

position.

Section	Page
Product Registration and Support	6
1 Getting Started	9
1.1 Product Description	9
1.2 Pilot Controls	10
1.2.1 Power/Com Volume/Squelch Knob	10
1.2.2 Tuning LARGE/SMALL Concentric (Cursor) Knobs	11
1.2.3 FLIP/FLOP Key	11
1.2.4 Com Key	11
1.2.5 MEM Key	11
1.2.6 ICS Key	11
1.2.7 CLR (Clear) Key	11
1.2.8 ENT (Enter) Key	11
1.2.9 FUNC (Function) Key	12
1.2.10 MON (Monitor) Key	12
1.3 USB Port	12
2 Basic Operation	13
2.1 Power On	13
2.2 Com Radio	13
2.2.1 Selecting a Com Frequency	13
2.2.2 Monitoring the Standby Com Channel	14
2.2.3 Saving a Com Channel	14
2.2.4 Com Database Look-Up	16
2.2.5 Emergency Channel	16
2.2.6 Stuck Mic	17
2.2.7 Frequency Database Reverse Look-Up	17
2.2.8 Remote Frequency Selection Control	17
3 Functions	19
3.1 Functions Description	19
3.2 Com Frequencies	20
3.2.1 Recent Com Frequencies	20
3.2.2 Com User Frequencies	21
3.2.2.1 Viewing the Com User Frequency	21
3.2.2.2 Deleting the Com User Frequency	21
3.2.2.3 Editing a Com User Frequency	22
3.2.3 Com Database Frequencies	23
3.2.4 Com Nearest Airports (APT)	24
3.2.5 Com Nearest Area Control Center (ACC) Frequencies	24
3.2.6 Com Nearest Flight Service Station (FSS) Frequencies	25
3.2.7 Com Nearest Weather (WX) Frequencies	26
3.3 ICS Configuration	27
3.3.1 Adjust Intercom	27
3.3.2 Aux Audio	28
3.3.3 Intercom On/Off	29
3.3.4 Speaker On/Off	29
3.4 System Configuration	30
3.4.1 Com Spacing	30
3.4.2 Display Brightness	31
3.4.3 Display Contrast	32
3.4.4 Database Info	32
3.4.5 Load Database	33
3.4.6 Software Version	34
3.4.7 Serial Number	34
3.5 Timers	35
3.5.1 Setting Up the Count Down Timer	35
3.5.2 Setting Up the Count Up Timer	36
3.5.3 Viewing Timers in the Com Display	36
4 Appendix	39
4.1 Troubleshooting	39
4.2 Updating the Frequency Database	41
4.2.1 Downloading the Frequency Database	41
4.2.2 Updating the GTR 225 Frequency Database	41
4.3 Messages	42

Garmin GTR 225 GTR 255/255A/255B Pilot’s Guide - Page 20

Com Frequencies - used

Page 20 highlights

Garmin GTR 225 GTR 255/255A/255B Pilot&#8217;s Guide - Page 20

Com Frequencies - used

Page 20 highlights

Garmin GTR 225 GTR 255/255A/255B Pilot’s Guide - Page 20