Realignment - Kenwood TK-280 Service Manual

OPERATING FEATURES/REALIGNMENT
• Group Call Tone
The group call tone informs the user of a group call in DTMF/
2Tone Option Signaling. This tone repeats 7 times.
770Hz 770Hz
30ms 30ms 30ms
• Individual Tone
Individual tone is issued on receiving selective call by DTMF/
2 Tone Option Signaling.
2000Hz 2000Hz
100ms 100ms 100ms
• Intercept tone (Trunking Format)
This tone indicates that the transceiver is out of range. It
indicates that the PTT button is pressed, and transmission has
started, but the repeater cannot be connected and talking is
not possible. It is output until the PTT button is released. (The
mid tone and low tone are output alternately in 200ms intervals.)
• Delay tone (Trunking Format)
This tone is output when the PTT button is pressed and the
repeater is accessed three times or more to indicate connection
with the repeater is delayed. This tone is the same as the busy
tone. (It is not output of CLEAT TO TALK has been set to
YES.)
• Proceed tone (Trunking Format)
This tone is output when the PTT button is pressed,
transmission starts, and the repeater is connected to indicate
that the user can talk if the Clear-to-talk function has been set.
(The high tone is output for 100ms.)
• Queue tone (Trunking Format)
This tone is output until the Auto TEL function is set and the
TEL channel is accepted successfully. (The mid tone on for
50ms, off for 50ms, and on for 50ms in 1 second intervals.)
• Deny tone (Trunking Format)
This tone is output if the Auto TEL function is set, the queue
tone is output, but the TEL channel cannot be accessed within
60 seconds. It is similar to the intercept tone. (The mid tone
and low tone are output alternately in 150ms intervals.)
• Free system ringback mode tone, system search mode
tone (Trunking Format)
This tone indicates that the transceiver is free system
ringback mode or system search mode. (The low tone is output
for 400ms.)
2000Hz
100ms 100ms
• Ringing tone (Trunking Format)
This tone indicates that the transceiver can use the repeater
in free system ringback mode. (The mid tone and no tone are
output eight cycles alternately in 50ms intervals.)
• Pre Alert tone (Conventional Format)
Informs user when nearing transmit inhibit (transmit cutoff)
time due to TOT.
The Pre Alert Tone is issued from the time set for TOT Pre
Alert until the TOT triggers.
1633Hz 1633Hz
50ms 50ms 50ms

REALIGNMENT

1. Modes
User mode
Panel test mode Panel tuning mode
Data programming
PC mode
mode
Firmware
programming mode
PC test mode
Clone mode
Self programming
mode (Conventional
Format)
Mode
User mode For normal use.
Panel test mode Used by the dealer to check the
fundamental characteristics.
Panel tuning mode Used by the dealer to tune the radio.
PC mode Used for communication between the
radio and PC (IBM compatible).
Data program- Used to read and write frequency data
ming mode and other features to and from the radio.
PC test mode Used to check the radio using the PC.
This feature is included in the FPU.
See panel tuning.
Firmware program- Used when changing the main
ming mode program of the flash memory.
Clone mode Used to transfer programming data
from one radio to another.
Self programming Frequency, signalling and features
mode (Conventional write to the radio.
Format)
TK-280
1633Hz
50ms 50ms
PC tuning mode
Function
11