Ranger RCI-2985DX Manual page 6

16. NB/ANL/OFF SWITCH
In the NB/ANL position, the RF Noise Blanker and the Automatic Noise Limiter in the audio circuits
are also activated. The Noise Blanker is very effective in eliminating repetitive impulse noise such as
ignition interference.
17. ROGER BEEP BUTTON (R.BEEP)
In the Roger Beep position, the radio transmits an audio tone at the end of your transmission to indicate
that transmission has ended. As a courtesy to others, use the Roger Beep only when necessary.
18. SPLIT BUTTON (SPLIT)
This control activates the offset frequency function. It causes the transmit frequency to be offset either
above or below the receive frequency by a user programmable amount to allow operation of a FM
Repeater.
19. PROGRAM BUTTON (PRG)
This button is used to program operating or scanning frequencies into memory. See the OPERATION
section of the manual for further details.
20. MANUAL BUTTON (MAN)
This is used to return the unit to manual mode.
21. SHIFT BUTTON (SHF)
This is used to select 100 Hz, 1 KHz, 100 KHz or 1MHz frequency steps.
22. UP/DOWN SELECTOR ( )
These buttons are used in conjunction with the shift key to move the frequency upward or downward to
select a desired frequency.
23. LOCK BUTTON (LOCK)
This button is used to lock a selected frequency. Press it to activate the switch. In this position, it
disables the Frequency Selector Control, up/down buttons on the front control panel and remote
up/down buttons on the microphone. Repressing the switch will unlock the frequency.
24. ENTER BUTTON (ENT)
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