Qt/Dqt; Dqt Turn-Off Code; Qt Reverse Burst; Qt Decode Delay - Kenwood TKR-750-850 Function Reference

Vhf fm repeater
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5 QT/DQT

The TKR-750/850/751/851 supports the QT/DQT
signalling.
The QT/DQT allows you to ignore unwanted calls from
other persons who are using a same frequency. With the
QT/DQT signalling, you can hear calls from only specific
persons or group that have a same QT/DQT code.
(Refer to 4.3 QT/DQT Decode, 4.4 QT/DQT Encode.)
You can also receive and make a call by a QT/DQT
Decode code of Multi-table at the same time.
21 Multi-table.)
5.1
QT/DQT
The QT (Quiet Talk) uses a sub-audible tone (67.0 - 254.1
[Hz]). The DQT (Digital Quiet Talk) uses a 3-digit octal
number (23-bit/word) (code: 000 - 777). The DQT signal
has polarity and can be configured as Normal or Inverse.
Note: QT/ DQT cannot be heard from the speaker since it uses a
sub-audible tone.
You can configure the QT/DQT Encode and Decode
codes for each channel.
(Refer to 4.3 QT/DQT Decode,
4.4 QT/DQT Encode.)
This function allows you to wait for a call a maximum of
16 QT/DQT codes while configuring 15 QT/DQT codes
(Current) as well as the QT/DQT code (Primary) to each
channel.
(Refer to 4.7 Encode Tone in Multiple.)
! Configuration of KPG-91D
" Configuring the QT/DQT Decode (Refer to FPRG
6.2.3 QT/DQT Decode.)
" Configuring the QT/DQT Encode (Refer to FPRG
6.2.4 QT/DQT Encode.)
" Configuring the Encode Tone in Multiple (Refer to
FPRG 6.2.7 Encode Tone in Multiple.)
5.2

DQT Turn-off Code

This function eliminates squelch tail noise when the
transmitting party ends the communications. A DQT
Turn-off Code is transmitted at the end of
communications. TKR-750/850/751/851 mutes the
output audio when the Turn-off Code is received.
When the QT/DQT Encode configured to the channel is
DQT, TKR-750/850/751/851 transmits the Turn-off Code.
YYou can configure the duration for transmitting the DQT
Turn-off Code in conjunction with the DQT Decode
performance of receiver.
! Configuration on the KPG-91D
Version: 1.01 USA
" Configuring the duration for the DQT Turn-off Code
transmission (Refer to FPRG 6.4.1 "Optional
Features 1" tab.)
5.3

QT Reverse Burst

(Refer to
This function eliminates squelch tail noise when the
transmitting party ends the communications. TKR-750/
850/751/851 transmits the QT Reverse Burst code at the
end of communications. It mutes the output audio when it
receives the QT Reverse Burst.
When the QT/DQT Encode code configured to the
channel is QT, TKR-750/850/751/851 transmits the QT
Reverse Burst Code.
You can configure the duration for transmitting the QT
Reverse Burst code in conjunction with the DQT Decode
performance of receiver.
! Configuration of KPG-91D
" Configuring the duration for transmitting the QT
Reverse Burst Code (Refer to FPRG 6.4.1
"Optional Features 1" tab.)
5.4

QT Decode Delay

This function is a delay time to start detecting a QT/DQT
signalling , which is transmitted from the radio as a
normal QT signalling, as the QT Reverse Burst code.
You must configure the duration between the time that the
received QT signalling unmatches and starts the QT
Decode operation in order to use this function.
! Configuration of KPG-91D
" Configuring the QT Decode Delay (Refer to FPRG
6.4.1 "Optional Features 1" tab.)
Function Reference (FUNC)
15

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Tkr-751-85Tkr-750Tkr-850Tkr-751Tkr-851

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