ICOM 217800 Manuale Utente
53
4
RECEIVE AND TRANSMIT
■
Tone squelch operation
The tone squelch opens only when receiving a signal
containing a matching subaudible tone. You can
silently wait for calls from group members using the
same tone.
containing a matching subaudible tone. You can
silently wait for calls from group members using the
same tone.
q Push [VFO/MEMO] to select VFO mode.
w Push the desired band key.
e Push [AM/FM] several times to select FM mode.
r Push [TONE] several times until “TSQL” appears
e Push [AM/FM] several times to select FM mode.
r Push [TONE] several times until “TSQL” appears
in the function display.
t When the received signal includes a matching
tone, squelch opens and the signal can be heard.
• When the received signal’s tone does not match, tone
squelch does not open, however, the S-indicator shows
signal strength.
signal strength.
• To open the squelch manually, push [XFC].
y Operate the transceiver in the normal way.
u To cancel the tone squelch, push [TONE] to clear
u To cancel the tone squelch, push [TONE] to clear
“TSQL.”
• Setting the tone squelch tone
The transceiver has 50 tones from 67.0 Hz to
254.1 Hz.
254.1 Hz.
q Select FM mode.
w Push [TONE] for 1 sec. to enter tone set mode.
e Push [(F-2)√] to select the tone squelch tone item.
r Rotate the tuning dial to select the desired tone
w Push [TONE] for 1 sec. to enter tone set mode.
e Push [(F-2)√] to select the tone squelch tone item.
r Rotate the tuning dial to select the desired tone
squelch frequency.
t Push [EXIT/SET] to exit tone set mode.
Available tone squelch tones
(Unit: Hz)
Store tone squelch frequencies and ON/OFF settings
in memory channels for easy recall.
in memory channels for easy recall.
CONVENIENT
T-SCAN
T-SCAN
é
è
DEF
DEF
TONE FREQUENCY
TONE FREQUENCY
88.5Hz
88.5Hz
88.5Hz
88.5Hz
T-SQL TONE
T-SQL TONE
REPEATER TONE
REPEATER TONE
AGC
AGC
FAST
FAST
VOX
VOX
OFF
OFF
OFF
TONE
TONE
OFF
OFF
BW
BW
15k
15k
SFT
SFT
0
FIL2
FIL2
F M
F M
qw:pp
VFO
VFO
FM
FM
USB
USB
USB
USB
FIL2
FIL2
wo.yip.pp
wo.tip.pp
14.100.00
14.100.00
14.100.00
14.100.00
1
1
VFO
VFO
TSQL
TSQL
TSQL
TSQL
TX
TX
ANT
ANT
1
METER
METER
Po
Po
ATT
ATT
OFF
OFF
OFF
P.AMP
P.AMP
1
BW
BW
2.4k
2.4k
SFT
SFT
0
FIL2
FIL2
U S B
U S B
qw:pp
TX
TX
VFO
VFO
USB
USB
USB
USB
USB
USB
FIL2
FIL2
wq.wop.pp
qr.wpt.pp
14.100.00
14.100.00
14.100.00
14.100.00
1
1
VFO
VFO
ANT
ANT
1
METER
METER
Po
Po
ATT
ATT
OFF
OFF
OFF
P.AMP
P.AMP
1
67.0
69.3
71.9
74.4
77.0
79.7
82.5
69.3
71.9
74.4
77.0
79.7
82.5
0
85.4
0
88.5
0
91.5
0
94.8
0
97.4
100.0
103.5
103.5
107.2
110.9
114.8
118.8
114.8
118.8
123.0
127.3
131.8
127.3
131.8
136.5
141.3
146.2
151.4
156.7
159.8
162.2
141.3
146.2
151.4
156.7
159.8
162.2
165.5
167.9
171.3
173.8
177.3
179.9
183.5
167.9
171.3
173.8
177.3
179.9
183.5
186.2
189.9
192.8
196.6
199.5
203.5
206.5
189.9
192.8
196.6
199.5
203.5
206.5
210.7
218.1
225.7
229.1
233.6
241.8
250.3
218.1
225.7
229.1
233.6
241.8
250.3
254.1