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RECEIVE AND TRANSMIT
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To search for a repeater’s sub-audible tone frequency,
a tone scan is available.
By monitoring a repeater signal with a tone squelch or
DTCS, you can determine the tone frequency neces-
sary to open the repeater or the squelch.
q
In the FM mode, p
ush [MENU] to display the “M1”
screen (Menu 1).
w Hold down [TON](F-4) for 1 second to enter the
“TON” screen.
e Push [TON](F-1) one or more times to select the
tone type to be scanned.
•“RptrTone”forarepeatertone,“TSQLTone”fortone
squelch or “DTCS Code” for a DTCS code can be se-
lected.
•WhenselectingaDTCScodetobescanned,theDTCS
codeanditspolarityisdisplayed.Youcanselectthede-
sired polarity by pushing [F-5].
“NN” : Normal polarity for both transmit and receive.
“NR” : Normal polarity for transmit and reverse polarity
for receive.
“RN” : Reverse polarity for transmit and normal polarity
for receive.
“RR” : Reverse polarity for both transmit and receive.
r Push [SCAN](F-2) to start the Tone scan.
•“RptrToneSCAN,”“TSQLToneSCAN”or“DTCSCode
SCAN” blinks, depending on the type you selected.
•If
“Up/Down” is selected as
the “MAIN DIAL (SCAN)”
option
in the Scan Set mode, rotating [MAIN DIAL]
changes the scanning direction. (p. 147)
t When a matched tone or code is found, the scan
pauses, and the detected sub-audible tone fre-
quency or DTCS code is set.
•Holddown[F-3]for1secondtoresettothedefaultset-
ting, if desired.
y Push [SCAN](F-2) to cancel the Tone scan.
When the tone scan or DTCS code scan is used in
the Memory or Call channel mode, the detected
tone frequency or code can be used temporarily.
To save the detected tone frequency or code set-
ting, you must over-write the Memory or Call chan-
nel data. (pp. 140, 141)
■ Tone scan/DTCS code scan operation
DUPAGC AFC TON SCP
M1
TON
SCANTON 88.5Hz
Rptr Tone
Hold down
Push to select the tone type.
Push to start or cancel the scan.
[TON] [SCAN]
[F-5]
[MENU]
[F3]
[MAIN DIAL]
. Hz
SCAN
TSQL
Tone SACN
TON
88.5Hz
TON SCAN
TON
TSQL
Tone
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