Kenwood NXR-1700 Function Reference page 163

12 CONVENTIONAL IP NETWORK / 12.3 Restricting Transmission to Avoid Interference with Other
Communications (Cross-busy)
Avoiding Interference with Other Communications (Busy Channel Lockout (Cross-busy))
Busy Channel Lockout (Cross-busy) is the function used by the repeater to restrict transmission automatically in
order to avoid interfering with communications if the channel on which the repeater attempts to transmit using the
Network PTT control or Console PTT control or attempts to transmit a Beacon is already used by other transceivers.
According to the configuration for Busy Channel Lockout (Cross-busy), the repeater behaves as below:
Configuration for
Cross-busy
No
Carrier Only
Incorrect Tone
(Analog Mode Only)
Correct CC
(DMR Mode Only)
Incorrect RAN
(NXDN Mode Only)
Correct RAN
(NXDN Mode Only)
Note
 The transmission by using the Network PTT control or Console PTT control is not allowed if the Repeat PTT control is
configured to have a higher priority than the Network PTT control or Console PTT control in PTT Priority.

The repeater continues transmitting even if the conditions to restrict transmission by Busy Channel Lockout are established
during the transmission by using the Network PTT control or Console PTT control. However, the transmission using the
Network PTT control or Console PTT control stops if the transmission using the Repeat PTT control starts.
Configuration using KPG-D7
 Configuring Busy Channel Lockout (Cross-busy) to be enabled or disabled ( Edit > Conventional IP Network >
General > Cross-busy)
FUNC (E)/ Ver 2.00
Table 12-9 Busy Channel Lockout (Cross-busy)
Description
Disables Busy Channel Lockout. No transmission is restricted even if the digital channel on
which the repeater attempts to transmit is busy.
The repeater cannot transmit while the repeater is receiving a signal.
The repeater cannot transmit if the repeater receives a signal and the received QT tone or DQT
code does not match the QT tone or DQT code preconfigured for the repeater. However, the
repeater can transmit if the received QT tone or DQT code matches the QT tone or DQT code
preconfigured for the repeater.
The repeater cannot transmit if the repeater receives a signal and the received Color Code
matches the Color Code preconfigured for the repeater.
The repeater cannot transmit if the repeater receives a signal and the received RAN does not
match the RAN preconfigured for the repeater.
The repeater cannot transmit if the repeater receives a signal and the received RAN matches the
RAN preconfigured for the repeater.
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