Icom IC-2800H - Manual (Page 27)

■ Receiving
q Push [POWER] for 2 sec. to turn power ON.
w Set the audio level.
➥ Push the desired band’s [MONI] to open the squelch.
• Push [CHG/L] if [MONI] is not displayed.
➥ Rotate the desired band’s [VOL] control to adjust the
audio output level.
➥ Push [MONI] again to close the squelch.
e Set the squelch level.
➥ Rotate the desired band’s [SQL] fully counterclockwise
in advance.
➥ Rotate [SQL] clockwise until the noise just disappears.
➥ When interference is received, rotate [SQL] clockwise
again for attenuator operation.
• Turn the automatic RF attenuator ON in advance. (p. 66)
r Set the operating frequency. (p. 20)
t When receiving a signal on the set frequency, squelch
opens and the transceiver emits audio.
• “RX” appears and the S/RF indicator shows the relative signal
strength for the received signal.
q Push [POWER] for 2 sec. to turn power ON.
w Select the desired band with [BAND].
e Set the audio level.
➥ Push [ q MONI] to open the squelch.
➥ Push [VOL Y ] or [VOL Z ] to adjust the audio
output level.
• Volume level appears while setting.
➥ Push [ q MONI] again to close the squelch.
r Set the squelch level.
➥ Push [SQL Y ] or [SQL Z ] to set the squelch
to the point where noise just disappears.
• Squelch level appears while setting.
t Set the operating frequency. (p. 22)
y When receiving a signal on the set frequency,
squelch opens and the transceiver emits audio.
• “RX” appears and the S/RF indicator shows the rel-
ative signal strength for the received signal.
RF attenuator: The transceiver has an RF attenuator re-
lated to the [SQL] setting. The attenuator is automatically
activated when [SQL] is rotated clockwise past the 12 o’-
clock position. Approx. 10 dB attenuation is obtained at full
rotation. Turn the automatic RF attenuator ON in advance
in set mode. (p. 66)
23
5
BASIC OPERATION
RF attenuator Squelch
range
0 dB
10 dB
SQL
Y Z
BAND