Kenwood TK-782, Service Manual, Page: 15 / 91

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TK-782
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Squelch logic signal
This signal is useful for external radio control units which
require a signal at the time of carrier operate relay or tone
operate relay.
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TX sense
Select one of the following three output functions for data
communication.
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MIC PTT
Indicates the state of the microphone PTT.
MIC PTT on = Low, MIC PTT off = High
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Ext PTT
Indicates the state of the Acc PTT input.
Ext PTT on = Low, Ext PTT off = High
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TX line
Indicates the actual transmitter activity.
TX on = Low, TX off = High
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MIC hook logic signal
The MIC hook logic signal is on the CODE 2 terminal. The
MIC hook logic signal type is the type of active low or high
for the MIC hook logic signal.
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Unlock logic signal
The PLL unlock logic signal is on the CODE 1 terminal.
The unlock logic signal type is the type of active low or high
for the PLL unlock logic signal.
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Com port
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Com 0
This function selects the external serila port function at
the microphone jack (TXD/RXD). PC programming is ac-
cepted, regardless of this setting.
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Com 1
This function selects the external COM1 pin serial port
function on the KCT-19 accessory jack. If the transceiver is
installed GPS unit, this function must be set up in “GPS”.
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Com 2
This function selects the external COM2 pin serial port
function on the KCT-19 accessory (RXD2 (AHK)/TXD2 (PTT))
and the external serial port function (TXD2/RXD2).
4. Details of Features
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Time-out timer
The time-out timer can be programmed off or in 30 sec-
onds increments from 30 seconds to five minutes. If the
transmitter is keyed continuously for longer than the pro-
grammed time, the transmitter is disabled and a warning tone
sounds while the PTT button is held down. The alert tone
stops when the PTT button is released.
OPERATING FEATURES /
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