Fm ctcss operation – Kenwood TS-590S User Manual

Page 34

Advertising
background image

26

6 ENHANCED COMMUNICATIONS

TONE FREQUENCY ID SCAN

This function scans through all tone frequencies to
identify the incoming tone frequency on a received
signal. You may find this useful when you do not
know the tone frequency that the repeater uses.

1 While the Tone function is ON (“ ” is visible), press

and hold [AGC/T (SEL)].
• The current tone frequency appears.

2 Press

[SCAN (SG.SEL)] to activate the Tone

frequency ID scan.
• While the transceiver is receiving a signal, “ ”

blinks and every tone frequency is scanned.
When the tone frequency is identified, the
transceiver stops scanning and the identified
frequency is displayed.

• Press

[SCAN (SG.SEL)] or [CLR] to stop

scanning while the tone frequency ID scan is
active.

• Press

[SCAN (SG.SEL)] again to resume

scanning.

Note: Received signals are audible while scanning is in
progress.

FM CTCSS OPERATION

You may sometimes want to hear calls only from
specific persons. When using FM mode, the
Continuous Tone Coded Squelch System (CTCSS)
allows you to ignore (not hear) unwanted calls from
other persons who are using the same frequency.
A CTCSS tone is sub-audible and is selectable from
among the 42 tone frequencies. Select the same
CTCSS tone as the other stations in your group. You
will not hear calls from stations other than those using
the same CTCSS tone.

Note: CTCSS does not cause your conversation to be private.
It only relieves you from listening to unwanted conversations.

1 Press

[A/B (A=B)] to select VFO A or VFO B.

• “

” or “

” appears to show which VFO is

selected.

2 Select the 29 MHz band or the 51-54 MHz band

using [28 (9)] or [50 (0)].

3 Select the desired frequency with the Tuning

control or MULTI/CH control.

4 Press

[FM/AM (FM-N)] to select FM mode.

5 Turn

the

SQL control to adjust the squelch.

6 Press

[AGC/T (SEL)] until “

” appears.

7 While

” is visible, press and hold [AGC/T

(SEL)].
• The current CTCSS frequency appears (default

is 88.5 Hz).

Activating the Tone Function

1 Confirm that FM mode has been selected on

the VFO(s) {page 10}.
• When using 2 VFOs, you must select FM

mode on both VFOs.

2 Press

[AGC/T (SEL)].

• “ ” appears.

Note: You cannot use the Tone function with the CTCSS
function.

Selecting a Tone Frequency

1 While

“ ” appears (Tone function is ON), press

and hold [AGC/T (SEL)].
• The current tone frequency appears.

The default is 88.5 Hz.

2 Turn

the

MULTI/CH control to select the desired

tone frequency.
• The available tone frequencies are listed in

the table below.

3 Press and hold [AGC/T (SEL)] or press [CLR]

to complete the setting.

No.

Freq.

(Hz)

No.

Freq.

(Hz)

No.

Freq.

(Hz)

No.

Freq.

(Hz)

00

67.0

11

97.4

22

141.3

33

206.5

01

69.3

12

100.0

23

146.2

34

210.7

02

71.9

13

103.5

24

151.4

35

218.1

03

74.4

14

107.2

25

156.7

36

225.7

04

77.0

15

110.9

26

162.2

37

229.1

05

79.7

16

114.8

27

167.9

38

233.6

06

82.5

17

118.8

28

173.8

39

241.8

07

85.4

18

123.0

29

179.9

40

250.3

08

88.5

19

127.3

30

186.2

41

254.1

09

91.5

20

131.8

31

192.8

42

1750

10

94.8

21

136.5

32

203.5

--

--

Note:

You can select a tone frequency independent of a

CTCSS frequency.

When 1750 Hz is selected, the transceiver sends a

500 ms tone burst each time transmission starts. You
cannot transmit 1750 Hz tone manually.

Advertising