Garmin 225B Manuale Utente

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190-01182-00  Rev. A

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

 

Turn 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. 

New frequencies are first selected as a Standby frequency and then toggled to 

the Active side with the FLIP/FLOP key. While viewing the Standby frequency 
display, use the LARGE and SMALL knobs on the right side of the GTR 225 to 
select the desired frequency. 

  

  1. Press 

COM, if necessary, to reach the Com radio function. The 

COM annunciator on the top line of the display will show. 

 

2.   Turn  the  LARGE  knob to change the values in one MHz 

increments. The MHz selection range is between 118 and 136 
in one MHz steps. 

 

3.   Turn the SMALL knob to change the values in 25 kHz or 8.33 

kHz increments. The kHz selection range is between 000 and 
975 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 and 

counterclockwise to decrease the frequency values. Standby 
frequency selection is not inhibited during transmit. 

 

5.  When connected to a position source, nearby station identifiers 

will be shown for the selected frequency. Frequencies with 
multiple types will have an asterisk next to the identifier. 

  

 

6.   Press and release the FLIP/FLOP

 key to toggle the Standby 

frequency to the Active frequency.