Kenwood TK-190 Service Manual page 4

TK-190
2. Scan Operating
2-1. Scan Start Condition
Two or more non-priority channels must be added to all
channels that can be scanned. The transceiver must be in
normal receive mode (PTT off).
When you activate the key or the toggle switch (to right
position) programmed to the scan function, the scan starts.
The scan icon "SCN" lights and "SCAN" or revert channel
(programmable) is indicated on 7-digit alphanumeric display.
2-2. Scan Stop Condition
The scan stops temporarily if the following conditions are
satisfied.
1) A carrier is detected, then signalling matches on channel
for which receive the signalling is set by the program-
ming software.
2) A carrier is detected on the channel for which receiving
signalling is not set by the programming software or
when the monitor (signalling cancel) function is activated.
2-3. Scan Channel Types
1) Priority channel is the most important channel for the
scan, and always detects a signal during scan and when
the scan stops temporarily.
2) Non-priority channels detects a signal during scan. For
the channels that can be selected with the channel selec-
tor when the scan does not occur, adds an indicator "A"
lights.
2-4. Priority Channel Setting
Priority channel can be set as follows with the program-
ming software (KPG-59D).
1) Specify priority channel as fixed priority channel.
2) Make selected channels, priority channels.
2-5. Scan Type According to the Priority Channel
1) When no priority channels are set : Only the non-priority
channels are scanned.
If a non-priority channel stops temporarily.
2) When one priority channel is set : Either priority channel
is scanned.
If a non-priority channel stops temporarily, a priority chan-
nel signal is detected at certain intervals.
If a priority channel stops temporarily, it stops until there
is no signal on the priority channel.
2-6. Revert Channel
The revert channel is used to transmit during scanning
and set by the programming software (KPG-59D).
1) Last called channel
The transceiver reverts to the last called channel during
the scan.
2) Last used channel
The transceiver reverts to the last used (transmitted)
channel during scan. "Last used" revert channel includes
talkback function.
3) Selected with talkback
The transceiver reverts to the channel before scanning or
the channel that you changed during scan.
4
OPERATING FEATURES
4) Selected channel
5) Priority with talkback
6) Priority
2-7. Scan End
(to left position) programmed to the scan function during
scan mode, the scan ends.
grammable) display goes off.
2-8. Temporarily Delete/Add
scan. When scan stops on unnecessary channel for ex-
ample by interference of the other party, activate the delete/
add function (for example press the key), then that channel
is deleted temporarily and scan re-start immediately.
rarily to scan sequence, select the desired (deleted) channel
during scan, activate the delete/add function (for example
press the key) before scan re-start.
temporary deleted or added channels are returns to pre-set
delete/add, when the transceiver exits from scan mode.
The transceiver reverts to the channel before scanning or
the channel that you changed during scan.
The transceiver reverts to the priority channel.
If you press PTT during a resume timer (dropout delay
time, TX dwell time) or calling, you can transmit on cur-
rent channel to answer to the call however revert channel
is set to priority channel.
After resume time, scan re-starts and transmission chan-
nel is return to priority channel.
The transceiver reverts to the priority channel.
When you press the key once again, or the toggle switch
The scan icon "SCN" and "SCAN" or revert channel (pro-
It is possible to delete or add channel temporarily during
When you would like to add the deleted channel tempo-
That channel is added temporarily to scan sequence. The