Kenwood TK-890/(B) Service Manual page 67

TK-890/ ( B
Key Functions in Panel Test Mode and
Panel Tune Mode
Knob/Key
GRP UP
GRP DOWN
UP/DOWN
PF1 Frequency CH down
PF2 Frequency CH up
PF3 Signalling CH down
PF4 Signalling CH up
PF5
Basic function panel
GRP UP
POWER GRP DOWN
POWER
GRP
TX BUSY
VOL
VOL UP/DOWN
Full function panel
GRP UP
POWER GRP DOWN
POWER
CALL
GRP
TX BUSY
VOL
VOL UP/DOWN PF1
Panel Test Mode
The transceiver's transmission output, receive sensitiv-
ity, and other items are measured and QT, DQT, 2tone and
DTMF signaling is decoded in this mode.
• To enter the panel test mode
Hold down [PF1] and turn the power switch on to enter
this mode. The test frequency channel and test signalling
channel will be displayed.
66
) /H ( B )
ADJUSTMENT
Test mode Tune mode
Test mode/Tune mode changeover
Monitor ON/OFF
Narrow/Wide changeover
Tuning item down
TUning item up
Tuning value down
Tuning value up
Not used Tuning value backup
CH
PF1 PF2 PF3 PF4
MON
MON SCAN SP OPT A B C OST
SCN
CH
PF2 PF3 PF4
Narrow
Note : When a key other than GRP down is pressed, the
optional signalling is reset.
• Test frequency channel (MHz)
K : TK-890/(B), 890H(B)
CH TX
1 470.0000 460.1000 496.0000 490.1000 416.5000 420.1000
2 450.0000 450.1000 480.0000 480.1000 403.0000 410.0000
3 490.0000 469.9000 512.0000 499.9000 430.0000 429.9000
4 460.0000 460.0000 490.0000 490.0000 420.0000 420.0000
5 460.2000 460.2000 490.2000 490.2000 420.2000 420.2000
6 460.4000 460.4000 490.4000 490.4000 420.4000 420.4000
7 470.0000 470.1000 492.0000 492.1000 403.0000 403.1000
8 480.0000 480.1000 502.0000 502.1000 413.0000 413.1000
9 490.0000 489.9000 512.0000 511.9000 423.0000 422.9000
10
11
• Test signalling channel
PF5
CH No.
1
2
3
4
5
6
7
8
9
Panel Tune Mode
PF5
The transceiver is adjusted in this mode.
• To enter the panel tune mode
Press the [GR ] key in the panel test mode.
In this mode, QT and DQT signalling is decoded, but
2tone and DTMF signalling is not decoded.
The adjustment items, the frequency and signalling,
other than the maximum deviation and sensitivity, return to
the values that were effective for the test frequency chan-
nel and test signalling channel before entering the panel
tune mode.
The RF High Power adjustment item of only the TK-890H
K type can be adjusted by switching the frequency between
460MHz and 475MHz.
Test signalling CH
Test frequency CH
K2 : TK-890(B) K3 : TK-890(B)
RX TX RX
490.0000 489.9000 420.0000 419.9000
470.0000 470.1000 440.0000 439.9000
Encode tone Decode tone
None
100Hz square wave
QT 67.0Hz QT 67.0Hz
QT 151.4Hz QT 151.4Hz
QT 250.3Hz QT 250.3Hz
DQT 023N DQT 023N
Single tone 1633Hz 2 tone 321.7/928.1Hz
DTMF [9] DTMF [159]
MSK
TX RX
None
None
None