Garmin GTN 650 Pilot's Guide - Page 56

Foreword Getting Started Xpdr Ctrl 8. Touch the Name or Frequency keys to edit the displayed name or frequency, if desired. Touch To Edit User Frequency Name Touch To Edit User Frequency Value Com/Nav FPL Direct-To Touch To Delete User Frequency Figure 3-20 Edit The User Frequency Proc 3.3.3 Emergency Frequency The GTN 635 or 650 emergency frequency select provides a quick method Wpt Info of selecting 121.50 MHz as the active frequency in the event of an in-flight Map emergency. The emergency frequency select is available whenever the unit is on, regardless of GPS or cursor status, or loss of the display. Traffic To quickly tune and activate 121.50, press and hold volume knob or the external remote Com flip-flop key Terrain for approximately two seconds. If the remote key is used, further changes in Com frequency will not be possible Weather until the external remote switch is pressed again for two seconds. Nearest NOTE: Under some circumstances if the Com system loses communication Music with the main system, the radio will automatically tune to 121.50 MHz for transmit and receive regardless of the displayed frequency. Utilities 3.3.4 Stuck Microphone System Whenever the GTN 635 or 650 is transmitting, a "TX" indication appears in the Com window. If the push-to-talk key on the microphone is stuck or Messages accidentally left in the keyed position, or continues to transmit after the key is Symbols released, the Com transmitter automatically times out (or ceases to transmit) after 30 seconds of continuous broadcasting. You will also receive a "Com pushAppendix to-talk key stuck" message as long as the stuck condition exists. Index 3-10 Garmin GTN 625/635/650 Pilot's Guide 190-01004-03 Rev. B