Garmin GTR 225 Pilot's Manual

Also see for GTR 225: Installation manual Installation manual Specifications Pilot's guide

Garmin GTR 225 Pilot's Manual Manual pdf 13 page image

2-1190-01182-00 Rev. A Garmin GTR 225/225A/225B Pilot’s Guide2 BASIC OPERATION2.1 Power OnTurn the GTR 225 on by either turning the Power/Com Volume/Squelch knob clockwise to turn the power on or, if installed,turning on the master switch that powers the radios.2.2 Com Radio2.2.1 Selecting a Com FrequencyNew frequencies are first selected as a Standby frequency and then toggled tothe Active side with the FLIP/FLOP key. While viewing the Standby frequencydisplay, use the LARGE and SMALL knobs on the right side of the GTR 225 toselect the desired frequency.1. Press COM, if necessary, to reach the Com radio function. TheCOM annunciator on the top line of the display will show.2. Turn the LARGE knob to change the values in one MHzincrements. The MHz selection range is between 118 and 136in one MHz steps.3. Turn the SMALL knob to change the values in 25 kHz or 8.33kHz increments. The kHz selection range is between 000 and975 kHz in 25 kHz steps or 000 and 990 kHz in 8.33 kHz steps.4. Turn the LARGE and SMALL knobs clockwise to increase andcounterclockwise to decrease the frequency values. Standbyfrequency selection is not inhibited during transmit.5. When connected to a position source, nearby station identifierswill be shown for the selected frequency. Frequencies withmultiple types will have an asterisk next to the identifier.Asterisk Indicates Multiple TypesExist For The Selected FrequencyIdentifier and Type Shown ForThe Selected FrequencyFigure 2-1 Com Frequency Selection6. Press and release the FLIP/FLOP key to toggle the Standbyfrequency to the Active frequency.