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7. tone alert system – Kenwood TM-431E User Manual

Page 30

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background image

3,

The

transceiver

will

remain

keyed

for

approximately

2

seconds

after

you

press

each

number,

so

you

can

release

the

PTT

switch

without

unkeying

the

tran­

sceiver.

Note:-----------------------------------------------

Some

repeaters

will

require

the use of a special key se­

quence

to

activate

the

Au­

topatch

function.

You

should

check

with

your

control

oper­

ator for this sequence.

Audio tones

(Hz)

^Column

1209

1336

1477

1633

Row \

697

1

2

3

A

770

4

5

6

B

852

7

8

9

C

941

*

0

#

D

30

4-7. Tone Alert System

The

Tone

Alert

function

will

provide

an

audible

“Alarm”

to

signal

when

someone

is

transmitting

on

the

frequency

you

are

monitoring.

When

used

in

conjunction

with

the

CTCSS

function

this

would

allow

the

transceiver

to

act

similar

to

a private pager system !

1. Adjust the SQL control to the threshold point.

2.

If you will be using the CTCSS function you should select

the

proper

tone

frequency

and

ensure

the

CTCSS

indi­

cator is on in the display.

3.

Press the F key and then the TONE/T.ALT key. The T.ALT

indicator will light.

4.

When a signal is received that will open squelch the fol­

lowing actions take place:

The

T.ALT

indicator

will

begin to flash.

The

busy indicator will turn

on.

The audio alarm will sound.

Note;-------------------------------------------------------------------------------------------------------

When

using

the

CTCSS

function

the

incoming

signal

must

be

present

for

approximately

2

seconds

in

order

for

the

T.ALT to function properly.

Tone Alert System can not use in conjunction with Scan.

The

T.ALT

function

can

be

released

by

pressing

the

F

key

and

then

the

TONE/T.ALT

key

again

or

by

pressing

the PTT switch while the T.ALT indicator is flashing.

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