Ptt Operation; Time-Out Timer (Tot); Tot Pre-Alert; Tot Rekey Time - Kenwood TKR-750-850 Function Reference

6 PTT OPERATION

You can control the transmission using three methods,
the Repeater PTT, the External PTT, and the Local Mic
PTT.
PTT (Push to Talk or Press to Talk) is a switch to transmit.
You can talk while pressing this switch. TKR-750/850/
751/851 returns to receive when the PTT switch is
released. The local microphone uses a push switch. As
for the repeater PTT and the external PTT, the PTT is
used to transmit and send a transmission signal.
• Local Mic PTT
You can use this PTT by connecting microphone to
the microphone connector that is located on the front
panel of the TKR-750/850/751/851. You can talk into
the microphone while pressing this switch. TKR-750/
850/751/851 stop transmitting when the PTT switch is
released. (Refer to Table 1-1 Assigning signals to the
8-pin connector.)
• External PTT
You can use this PTT switch by connecting an
external device to the control interface jack (25-pin
connector) that is located on the rear panel of the
TKR-750/850/751/851. This PTT switch controls the
transmission from the external device.
1-2 Assigning signals to 25-pin connector.)
• Repeater PTT
TKR-750/850/751/851 starts a repeater operation
when the received QT/DQT code matches. It enters
transmission mode with the configured frequency. In
this case, the QT/DQT Encode activates.
You can configure following functions by KPG-91D.
Time Out Timer

TOT Pre-alert

TOT Rekey Time

TOT Reset Time
Repeat Hold Time
PTT Priority
6.1

Time-out Timer (TOT)

TOT is a count-down timer to limit continuous
transmission. TKR-750/850/751/851 automatically stops
transmission and returns to receiving mode when the
TOT expires. (Refer to 7 TOT (Time Out Timer).)
Version: 1.01 USA
! Configuration of KPG-91D
" Configuring the Time-out Timer for the repeater
" Configuring the Time-out Timer for the Local Mic
6.2
You can configure a duration of the TOT Pre-alert Tone
notifying a user that TOT is about to expire to end the
operation.
! Configuration on the KPG-91D
" Setting the TOT Pre-alert for the repeater PTT and
" Setting the TOT Pre-alert for the Local Mic PTT
(Refer to Table
6.3
TOT Rekey Time is a duration between the time that the
transmission ends with the TOT and start transmission
again.
When the transmission terminates by TOT while
transmitting using PTT, you are not able to transmit using
the PTT until the TOT Rekey Time expires.
TOT (Time Out Timer).)
Table 6-1 Transmission availability during TOT Rekey Time
Repeater status
Air Remote
Air Remote
Transpond
CW ID/Message
Local PTT
Ext-PTT
Repeat
! Configuration of KPG-91D
" Configuring the TOT Rekey Time for the repeater
Function Reference (FUNC)
PTT and the external PTT (Refer to FPRG 6.4.1
"Optional Features 1" tab.)
PTT (Refer to FPRG 6.4.2 "Optional Features 2"
tab.)
TOT Pre-alert
(Refer to 9 Tone, 7 TOT (Time Out Timer).)
the external PTT (Refer to FPRG 6.4.1 "Optional
Features 1" tab.)
(Refer to FPRG 6.4.2 "Optional Features 2" tab.)
TOT Rekey Time
When the TOT
Rekey Time for the
Local Mic PTT:
O
O
O
X
O
O
PTT and the external PTT (Refer to FPRG 6.4.1
"Optional Features 1" tab.)
(Refer to 7
When the TOT
Rekey Time for the
External PTT or the
Repeater PTT:
O
O
O
O
X
X
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