Kenwood TM-255E Bedienungsanleitung PDF herunterladen (Seite 28)

Often a Tone frequency is required to access

repeaters. For example, 88.5 Hz may be needed in

the U.S.A. or Canada, and 1750 Hz is used in Europe.

The Tone frequencies listed below can be selected.

On the TM-255E/TM-455E, press microphone [1750]

to send a 1750 Hz tone.

No.

Freq.

(Hz)

No.

Freq.

No.

Freq.

(Hz)

No.

i Freq.

(Hz)

01 67.0 11 97.4 21

136.5

192.8

71.9 12 100.0 22

141.3

203.5

74.4

13 103.5 23

146.2

33 210.7

77.0

107.2

24 151.4 34

218.1

79.7

15 110.9 25

156.7

225.7

06 82.5 16 114.8 26 162.2 36

233.6

85.4

118.8

167.9

241.8

88.5 18 123.0 28

173.8 38 250.3

09 91.5

19 127.3 29

179.9

10 94.8 20

131.8 30

186.2

Any of the available tones can be selected via

Menu B, No. 53 {page 14}.

AUTOPATCH

(U.S.A. and Canada versions)

Some repeaters offer a service called Autopatch.

This feature allows you to dial a telephone number

from your transceiver and carry on a telephone

conversation. This repeater function cannot be used

for commercial transactions, but it can save lives

when used appropriately during emergencies.

Autopatch requires the use of a DTMF (Dual Tone

Multi-Frequency) keypad on your microphone. The

keypad includes the 12 keys found on a push-button

telephone plus an additional 4 keys (A, B, C, D).

These additional keys are required for various control

operations by some repeater systems.

■ Enabling the Microphone Keypad

Press [PTT]+[DTMF KEYS].

The transceiver remains keyed for approximately

2 seconds after pressing each key. This allows

you to release

[PTT] once you begin entering the

DTMF keys.

DTMF Tones

Freq. (Hz)

1209

1336 1477 1633

697 1

2 3

770

5 6

852 7

8 9 C

941

DUAL TONE MULTI-FREQUENCY (DTMF) CALLS

Hold down the microphone [PTT] and press [0] to [9],

[A], [B], [C], [D], [^], or [#].

• The microphone is muted and the corresponding

DTMF tones are transmitted.

• If two keys are pressed, only the tone combination

for the key pressed first is sent.

4 COMMUNICATION

Note: Some repeaters require a special key sequence to activate

Autopatch. Check with the control operator.

1 2 ... 23 24 25 26 27 28 29 30 31 32 33 ... 65 66

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