4 RECEIVE AND TRANSMIT

Tone squelch operation

Tone squelch operation is a method of communica- tions using selective calling. Only received signals having a matching tone will open the squelch. Before communicating using tone squelch, all members of your party must agree on the tone squelch frequency to use.

Push [MODE] one or more times to select FM mode.

Push and hold [DISPLAY] to enter Quick Set mode.

Push [MENU] one or more times to select item Q7

TONE SQL.

[Y]/[Z] or [M-CH] can also be used.

Rotate the main dial to select the desired subaudi- ble tone frequency.

Available tone frequencies are the same as for repeater tone operation (see previous page).

Select M4 and turn the tone squelch function ON.

Push [(F-3)TON] to toggle tone squelch opera- tion ON and OFF.

When tone squelch is turned ON, “TSQL” appears in the display.

Communicate in the usual manner.

Push [PTT] to transmit; release to receive.

Set the tone frequency (quick set mode).

 

 

 

 

 

 

See p. 49 for setting de-

 

 

 

 

 

 

tails and available fre-

Q7

TONE SQL

quencies.

 

 

 

 

FM

 

TSQL S P L

 

 

 

 

 

 

S1 3

5 7 9 20 40

60dB

VFO A

 

PO

5

10

 

 

CH

 

M4 VOX DUP TON

Tone scan operation

By monitoring a signal that is being transmitted on a repeater input frequency, you can determine the tone frequency necessary to open a repeater.

During tone squelch or repeater operation, push and hold [DISPLAY] to enter Quick Set mode.

Push [MENU] one or more times to select item Q8 T-SQL SCN during tone squelch operation, or

Q8 RPTR-T SCN during repeater operation.

[Y]/[Z] or [M-CH] can also be used.

Push [(F-3)SCN] to toggle tone scan operation ON and OFF.

While scanning tone frequencies are displayed instead of the operating frequency.

When a matched tone is detected, tone scan automati- cally stops, the matched tone is displayed and the repeater tone (or tone squelch tone) setting is automat- ically adjusted accordingly.

Push [DISPLAY] to return to the main menu.

 

 

 

 

 

 

 

 

FM

 

 

TSQL

During tone squelch

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

operation.

S1

3

5

7

9

20

40

60dB

 

 

 

 

 

 

PO

 

 

 

 

5

 

10

 

 

SCN

 

Q8 T-SQL

 

 

 

S1

3

5

7

9

20

40

60dB

FM

 

T

During repeater operation.

 

 

 

 

 

 

 

PO

 

 

 

 

5

 

10

 

 

SCN

 

Q8 RPTR-T

 

 

 

31

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Image 34
Icom iC-706MKTMG manual Tone squelch operation, Tone scan operation, ➅ Communicate in the usual manner