Operation; Switching Power On And Off; Adjusting The Audio Volume Level; Squelch Adjustment - Yaesu FT-252 Operating Manual

Operation

 Be sure the Battery Pack is installed, and the battery is fully charged. Connect the
antenna to the top panel ANTENNA jack.
 Press and hold the [ POWER ( )] key for two seconds to
turn the radio on. The current DC supply voltage will be
indicated on the display for 2 seconds. After this 2 second
interval, the display will resume its normal indication of
the operating frequency.
 To turn the radio off, press and hold the [ POWER ( )] key for two seconds.

Adjusting the Audio Volume Level

Press the [ VOL/SQL ] key to enter the receiver audio adjust-
ment mode. When " VOL " is displayed, rotate the DIAL knob
or press the [ p ] / [ q ] key until the noise or audio from the
speaker is at a comfortable level.
Press the [ VOL/SQL ] key twice to enter the squelch level ad-
justment mode. When " SQL " is displayed, rotate the DIAL
knob or press the [ p ] / [ q ] key to set the Squelch so that the
background noise is just silenced. This state is known as the
"Squelch Threshold".
1) A special "RF Squelch" feature is provided on this ra-
dio. This feature allows you to set the squelch so that only signals exceeding a cer-
tain S-meter level will open the squelch. See page 13 for details.
2) If you're operating in an area of high RF interference, you may need to con-
sider "Tone Squelch" operation using the built-in CTCSS Decoder. This feature
will keep your radio quiet until a call is received from a station sending a carrier
which contains a matching (subaudible) CTCSS tone. If your friends have radios
equipped with DCS (Digital Coded Squelch) like your FT-252, you may try using
that mode for silent monitoring of busy channels.
8

Switching Power ON and OFF

Squelch Adjustment

FT-252 O
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anual