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31
D
Operation
q
Set the operating frequency, or select a memory chan-
nel or Call channel.
w
Push
[FUNC](
M
)
, and then push
[SET](8)
to enter the
Set mode.
e
Set the tone frequency, or DTCS code and DTCS po-
larity.
r
Push
[# ENT]
to exit the Set mode.
t
Push
[FUNC](
M
)
, and then push
[TONE](1)
several
times, until the icon of desired Tone function ap-
pears.
•
“ ” : CTCSS squelch
•
“
D
” : DTCS squelch
y
Operate the transceiver in a normal way; push
[PTT]
to transmit, release
[PTT]
to receive.
u
When a signal with matched tone or code is received,
the squelch opens and audio is heard.
• To manually open the squelch, push
[MONI]
.
•
If the signal includes an unmatched tone, the squelch
does not open. However, the icon shows the strength of
the received signal.
i
To cancel the tone or DTCS squelch, push
[FUNC](
M
)
,
and then push
[TONE](1)
several times, until the tone
icon disappears.
✔
CONVENIENT!
Squelch burst:
While using the tone squelch, noise may be heard just
when the received signal disappears.
To eliminate the noise, the IC-U80/IC-U80E has the
Squelch Burst function.
See page 44 for details.
■
Pocket Beep function
This function uses subaudible tones for calling, and can
be used as a “common pager” to inform you that someone
has called while you were away from the transceiver.
q
Set the operating frequency, or select the memory
channel or Call channel.
w
Push
[FUNC](
M
)
, and then push
[SET](8)
to enter the
Set mode.
e
Set the tone frequency, or DTCS code and DTCS po-
larity.
r
Push
[# ENT]
to exit the Set mode.
t
Push
[FUNC](
M
)
, and then push
[TONE](1)
several
times, until the icon of desired Tone function and “ ”
appear.
•
“ ” and “ ”
: CTCSS Pocket Beep function
•
“ ” and “
D
”
: DTCS Pocket Beep function
y
When a signal with matched tone or code is received,
beep tones sound and “ ” blinks.
• To stop the beeps and blinking, push any key .
u
To cancel the tone or DTCS squelch, push
[FUNC](
M
)
,
and then push
[TONE](1)
several times, until the tone
icon disappears.
Function OFF
Push , and then push to sequentially select the tone function.
Tone squelch with
pocket beep
Tone squelch
DTCS encoder (Only TX)
DTCS squelch
DTCS squelch with
pocket beep
Repeater tone
Push , and then push several times
to turn ON the Pocket Beep function.
Tone squelch with pocket beep
DTCS squelch with pocket beep
8
TONE SQUELCH AND POCKET BEEP