Audible User Feedback Tones - Kenwood FM Transceiver TK-481 Service Manual

TK-480/481
Number of Retries
Number of Retries is the maximum number of retry
transmission when no acknowledgement is received in the
Maximum ACK Wait Time. Increase this item to improve
data communication reliability.
TX Busy Wait Time
TX Busy Wait Time is the maximum amount of time be-
fore giving up the data transmission when the channel (or all
the repeater channels for Trunking mode) is busy. Also, this
timer affects if it expires during Random Access period.
Maximum ACK Wait Time
Maximum ACK Wait Time is the maximum amount of
time to wait for an acknowledgement from the called radio
unit. It is used as an interval time of retries. It must be set
greater than the ACK Delay Time of the called radio unit.
ACK Delay Time
ACK Delay Time is the amount of time from the end of
receiving a data to the beginning of sending an
acknowledgement. It should be adjusted as the repeater's
hang-up delay time. Also, it must be set less than the Maxi-
mum ACK Wait Time of the calling radio unit.
TX Delay Time (RX Capture)
TX Delay Time is the amount of unmodulated transmis-
sion to let the called unit stop scanning or exit its battery
save mode. It is used only when starting a data communica-
tion sequence.
Data TX Modulation Delay Time
Data TX Modulation Delay Time is the amount of time
from the beginning of transmission to the beginning of a
data modulation. It is used every time data is transmitted.
It must be set to more than 300ms if data communication is
made in Trunking Mode.

7. Audible User Feedback Tones

The transceiver outputs various combinations of tones to
notify the user of the transceiver operating state. The main
tones are listed below.
The high tone is 1477Hz, the mid tone is 941Hz, and the
low tone is 770Hz.
7-1. Power On Tone
This tone is output when the transceiver is turned on.
(The high tone is output for 500ms.)
7-2. Alert Tone
This tone is output when the transceiver is TX inhibition
for TOT and PLL unlocked. It is output until the PTT button
is released. (The 697Hz tone is output.)
7-3. DBD On Tone
When a D.B.D. code is received, transpond tone sounds.
10
OPERATING FEATURES
7-4. DBD Off Tone
sounds.
7-5. Password Agreement Tone
The optional feature's control tone can be set to yes or no.
7-6. PTT Release Tone
sounds.
7-7. Busy Tone
(system busy or TX inhibit). Sounds in conventional mode,
when busy channel lockout is functioning. You can select
yes or no for the optional feature's warning tone.
7-8. Group Call Tone
signalling is received, repeats 7 times. You can select yes or
no for the optional feature's warning tone.
7-9. Individual Call Tone
option signalling is received. You can select yes or no for
the optional feature's warning tone.
7-10. Key Press Tone [A]
when toggle function is turned on (key press tone [B]
sounds when it is turned off). You can select yes or no for
the optional feature's control tone.
7-11. Key Press Tone [B]
when the toggle function is turned off (key press tone [A]
sounds when it is turned on). You can select yes or no for
the optional feature's control tone.
7-12. Key Press Tone [C]
ing data, adding a DTMF code to memory, and when chang-
ing test mode settings. You can select yes or no for the
optional feature's control tone.
7-13. Key Input Error Tone
used. You can select yes or no for the optional feature's
warning tone.
7-14. Roll Over Tone
yes or no for the optional feature's control tone.
7-15. Transpond Tone
DTMF option signalling is received. For group calls, only the
group tone will sound, not the transpond tone.
When a D.B.D. release code is received, transpond tone
When the correct password is entered, the tone sounds.
When you release the PTT switch, the PTT release tone
Sounds in LTR mode, when you cannot use a repeater
Sounds when a group call with the correct DTMF option
Sounds when an individual call with the correct DTMF
Sounds when a key is pressed. For toggle keys, sounds
Sounds when a key is pressed. For toggle keys, sounds
Sounds when a key is pressed. Also sounds when stor-
Sounds when a key is pressed but that key cannot be
Sounds at the smallest system/group. You can select
Sounds when an individual call with the correct LTR/