Icom COMMUNICATION RECEIVER IC PCR100 - Manual (Page 24)

20
3
BASIC OPERATION
■ Setting squelch level
The squelch function sets a minimum receive signal level
below which no audio is emitted from the speaker. This con-
veniently prevents noise and static from being emitted when
receiving weak signals or no signals at all.
Further setting of squelch removes weak signals. The remove
level is displayed on the S-meter (S-meter squelch). The
squelch does not open if a signal below the set S-meter level
is received.
D Using the multi-function receiver screen
➥ Click the [SQUELCH] control with the sub mouse button to
increase the squelch level (tight squelch); click the
[SQUELCH] control with the main mouse button to de-
crease the squelch level (loose squelch).
• The S-meter squelch level is displayed in the function display.
D Using the simple function receiver screen
q Click [MENU] and select the ‘Function controller’ when it is
not displayed.
w Click [SQL J ] or [SQL K ] on the function controller to select
the desired squelch level.
• The S-meter squelch level is displayed under the frequency indi-
cation.
■ IF filter selection
Increasing or decreasing the width of incoming signals can
help eliminate interference. Available filters vary according to
the receive mode. See the table below.
K : Factory setting; K : Selectable; –: Not selectable
D Using the multi-function receiver screen
➥ Click the [WID] or [NAR] buttons to toggle between filter
widths.
D Using the simple function receiver screen
q Click [MENU] and select the ‘Function controller’ when it is
not displayed.
w Click [WID] or [NAR] on the function controller to select the
filter width.
6 kHz IF filter
FM
WFM
AM
K
–
K
15 kHz
K
–
– K
50 kHz
K
K
230 kHz
K
–
K