Operation; Turning On The Unit And Setting Squelch; Turning On And Setting Squelch - Uniden ATLANTIS 250 Owner's Manual

• See "Controls and Indicators" (page 2) for button, knob, and key
positions.
• When you turn On your ATLANTIS 250 just after purchasing, it is
automatically tuned to channel 16, the United States Coast
Guard frequency for distress, safety, and calling.
• When you press any button (except PTT), a short tone sounds.

Turning On the Unit and Setting Squelch

1 Before you turn On the unit, turn the
squelch (SQ) knob fully counterclockwise.
2
Then, turn On the unit by turning the
Volume/Power (VOL) knob clockwise
until you hear a hissing sound.
3
Turn the SQ knob clockwise, just until the
hissing sound stops. Use the knob to adjust
to the desired squelch level. Think of the
squelch control as a frequency gate which
controls access to weak or strong signals
depending on its setting.
• To listen to a weak or distant station,
turn the knob
counterclockwise. If reception is poor, turn it clockwise to cut
out weak transmissions.
• If the squelch control is adjusted so that you continually hear a
hissing sound, the unit will not scan properly.
4 To turn Off the unit, turn the VOL knob counterclockwise until it
clicks.

Operation

11
SPKR
MIC
VOL
SQ
Strong Signals
Medium Signals
Weak Signals
Noise