Functions, Function Select F Button | Audiovox FR-540 manual

FUNCTIONS

Function Select (F) Button

Pressing the Function button will allow selection of frequency channels, as well as selection of the various unit functions. Each press permits selection of the desired channel (1–14), up to 38 CTCSS channel codes, beep tone, scan, VOX and Dual Watch functions. This button also activates the Key lock feature when pressed and held for more than 2 seconds.

Channel and CTCSS Selection

Press function button until large two-digit channel display flashes. Press Up () or Down () buttons to select desired channel (1–14). To select a CTCSS channel code, press function button until small two-digit display flashes. Then press Up or Down button to select desired code (1-38) in that channel. The CTCSS primary code feature allows you to ignore transmissions from other transceivers that are using the same channel. However, the same code must also be selected on those transceivers with which you desire com- munication. In addition, this feature does not prevent others from listening to your transmissions.

Beep Confirmation Tones

Whenever the Up/Down or Function (F) select button is pressed, the speaker will sound a beep tone to confirm each press, provided the key tone feature is enabled. The unit will also transmit a beep tone sequence after each transmission to signal the receiving party that transmission has ended. This tone is called a “Roger Beep”. To disable the key tones and “Roger Beep”, press Function button until the Beep Tone icon flashes. Then press Up () or Down () buttons until the icon disappears. No beep tones should be heard. To enable the key tones and “Roger Beep”, proceed as before, until Beep Tone icon appears flashing. Then press Up () or Down () button. The key tone icon will remain displayed and beep tone will be heard. When increasing the volume or channel number, the tone will be higher than when decreasing the volume or channel number.