Yaesu FT-450D Manuale Utente
Page 56
FT-450D O
PERATION
M
ANUAL
T
ONE
S
QUELCH
O
PERATION
You may also use “Tone Squelch” whereby your receiver will be kept silent until an incoming signal bearing a
matching CTCSS tone is received. Your receiver’s squelch will then open in response to the reception of the
required tone.
matching CTCSS tone is received. Your receiver’s squelch will then open in response to the reception of the
required tone.
1. Press and hold the [F] button for one second to
enter the Menu mode again. The “
” icon
will appear on the display.
2. Rotate the [DSP/SEL] knob to select menu item
“SQL TYP”.
3. Press the [DSP/SEL] knob to enable adjustment of
this menu item. The “
” icon will be blinking.
4. Rotate the [DSP/SEL] knob to select the “ENC
DEC
”.
5. Press the [DSP/SEL] knob. The “
” icon re-
turns to appear continuously.
6. Rotate the [DSP/SEL] knob to select menu item
“TONE F”, then press the [DSP/SEL] knob to en-
able adjustment of this menu item.
able adjustment of this menu item.
7. Rotate the [DSP/SEL] knob to select the desired
CTCSS tone to be used. A total of 50 standard
CTCSS tones are provided.
CTCSS tones are provided.
8. Press the [DSP/SEL] knob. The “
” icon re-
turns to appear continuously.
9. Press and hold the [F] button for one second to save
the new setting and return to normal operation.
When Tone Squelch is activated, the “
” icon
appears in the display.
FM M
ODE
O
PERATION
[F] button
[DSP/SEL] knob
CTCSS T
ONE
F
REQUENCY
(Hz)
67.0
69.3
71.9
74.4
77.0
79.7
82.5
85.4
88.5
91.5
94.8
97.4
100.0
103.5
107.2
110.9
114.8
118.8
123.0
127.3
131.8
136.5
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
186.2
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
251.4