3-6Garmin GTR 225/225A/225B Pilot’s Guide 190-01182-00 Rev. B5. Press FLIP/FLOP to set the selected frequency as the active frequency.Press ENT to set the selected frequency as the standby frequency.Press CLR to return to the functions display.3.2.6 COM Nearest Flight Service Station (FSS)FrequenciesWhen interfaced with a GPS receiver, the GTR 225 will report the twenty-fivenearest Flight Service Station (FSS) frequencies.Available FSS FrequenciesCOM Nearest Flight Service Station Frequencies1. Press FUNC.2. Turn the inner knob to NEAREST FSS.3. Press ENT.4. Turn the inner knob to scroll through the list of available FSS frequencies.5. Press FLIP/FLOP to set the selected frequency as the active frequency.Press ENT to set the selected frequency as the standby frequency.Press CLR to return to the functions display.3.2.7 COM Nearest Weather (WX) FrequenciesWhen interfaced with a GPS receiver, the GTR 225 will report the twenty-fivenearest weather (WX) frequencies. Available WX FrequenciesCOM Nearest Weather Frequencies1. Press FUNC.2. Turn the inner knob to NEAREST WX.3. Press ENT.4. Turn the inner knob to scroll through the available weather frequencies.5. Press FLIP/FLOP to set the selected frequency as the active frequency.Press ENT to set the selected frequency as the standby frequency.Press CLR to return to the functions display.