Kenwood TH-78A Instruction Manual

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Page 26Tone Function OperationPress the TONE key. A "T" indicator appears on the display, and the transmitter sends the desired tone when youpress the PTT switch.7 Autopatch Operations (U.S.A. versions only)Some repeaters offer a service called autopatch. This feature allows you to dial a telephone number from yourtransceiver and carry on a telephone conversation.This function requires the use of a DTMF (Dual Tone Multi Frequency) keypad. The transceiver also provides fouradditional keys - A, B, C, and D - in addition to the normal 12 keys found on your telephone.These keys are required for various control operations by some repeater systems. A chart listing the various tonefrequencies generated by the keypad is provided below.Hz 1209 1336 1477 1633 key Hz key Hz697 1 2 3 A (F) 1 697 5 1209770 4 5 6 B (M) 2 770 6 1336852 7 8 9 C (f 2) 3 852 7 1477941 * 0 # D (TONE) 4 941 8 1633To activate the keypad:Press and hold the PTT switchDial the number just as you would on a normal telephone by pressing the appropriate keys.NoteSome repeaters require a special key sequence to activate the autopatch function. Check with the controloperator for this sequence.You will hear and transmit a single tone if you press the VFO key before pressing one of the numeric keys.Selecting Delay Time(Direct keyboard entry only)It's easier to enter a long string of numbers if you don't have to hold down the PTT switch while you enter them. Toinstruct the transceiver to remain keyed for 2 seconds after pressing each number:1) Turn the power off.2) Press and hold the 2 key and turn on the power.