Icom IC-R20 Instruction Manual - Page 61

Tone scan

Get Icom IC-R20 PDF manuals and user guides View all Icom IC-R20 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 61 highlights

9 COMFORTABLE RECEIVING ■ Tone scan By monitoring a signal that is being operated with pocket beep, tone or DTCS squelch function, you can determine the tone frequency or DTCS code necessary to open a squelch. qSet the frequency to be checked for a tone frequency or code. wTurn the desired tone type, tone squelch or DTCS, ON by holding [7 TONE] with turning [R-DIAL]. • One of "TSQL" or "DTCS" appears. • Even when the pocket beep function is activated, the function is cancelled when starts the tone scan. ePush [4 T-SCAN] for 1 sec. to start the tone scan. • To change the scanning direction, rotate [R-DIAL]. Tone squelch scan [R-DIAL] 188 0 √ DTCS scan T-SCAN 4 TONE 7 013 √ r When the CTCSS tone frequency or 3-digit DTCS code is matched, the squelch opens and the tone frequency or code is temporarily programmed into the selected condition, such as memory channel. • The tone scan pauses when a CTCSS tone frequency or 3-digit DTCS code is detected. ☞ NOTE: The decoded tone frequency or code is programmed temporarily when a memory channel is selected. However, this will be cleared when the memory channel is re-selected. 9 ✔ For your convenient! Even if no tone type is selected, either tone squelch or DTCS, pushing [4 T-SCAN] for 1 sec. will also start tone scan. In this case, the tone scan searching for tone squelch frequency only. 48

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
48
9
COMFORTABLE RECEIVING
■
Tone scan
By monitoring a signal that is being operated with pocket
beep, tone or DTCS squelch function, you can determine the
tone frequency or DTCS code necessary to open a squelch.
q
Set the frequency to be checked for a tone frequency or
code.
w
Turn the desired tone type, tone squelch or DTCS, ON by
holding
[7 TONE]
with turning
[R-DIAL]
.
• One of “TSQL” or “DTCS” appears.
• Even when the pocket beep function is activated, the function is
cancelled when starts the tone scan.
e
Push
[4 T-SCAN]
for 1 sec. to start the tone scan.
• To change the scanning direction, rotate
[R-DIAL]
.
r
When the CTCSS tone frequency or 3-digit DTCS code is
matched, the squelch opens and the tone frequency or
code is temporarily programmed into the selected condi-
tion, such as memory channel.
• The tone scan pauses when a CTCSS tone frequency or 3-digit
DTCS code is detected.
✔
For your convenient!
Even if no tone type is selected, either tone squelch or DTCS,
pushing
[4 T-SCAN]
for 1 sec. will also start tone scan. In this
case, the tone scan searching for tone squelch frequency
only.
☞
NOTE:
The decoded tone frequency or code is pro-
grammed temporarily when a memory channel is se-
lected. However, this will be cleared when the memory
channel is re-selected.
√
1880
√
013
DTCS scan
Tone squelch scan
[R-DIAL]
T-SCAN
4
TONE
7
9