TK-90
76
Item
Condition
Measurement
Adjustment
Specifications/Remarks
Test-
equipment
Unit
Terminal
Parts
Unit
Method
ADJUSTMENT
• To terminate the adjustment menu in the middle, save your settings with Menu No. 48.
1. Receive
1) Menu No. : 1
DC V.M
TX-RX
AGC
[
] or Set the adjustment
2.8V
±
0.05V
AGC
(13.2MHz, USB)
[
]
value within the
reference
SSG output : OFF
limit of the specified
voltage.
2. RF IF gain
1) Display f. : 14.200MHz
SSG
Rear
ANT
TX-RX
L451
AF output max.
Mode : USB
panel
L452
PRE-AMP : ON
Oscilloscope
EXT.SP
AGC : FAST
AF V.M
*AF output : 0.45V/4
Ω
(LV7)
DM. SP
SSG f. : 13.201MHz
SSG output
: –115dBm (0.398
µ
V)
1. TX MCF
1) Display f. : 13.200MHz
Tracking
TX-RX
CN4
TX-RX
L122
Adjust the top of
Fig. 1
(73.095MHz)
Mode : USB
generator
(TP1)
L123
the waveform as
Spectrum analyzer setting
L124
flat as possible.
Center f. : 73.095MHz
Spectrum
CN5
Frequency span : 100kHz
analyer
(TP2)
Xdb/DIV : 10dB
RBW : 300Hz
VBW : 100Hz
Disconnect the cable from
CN2 (DRV).
Transmit
After the adjustment,
connect the cable to CN2.
2. RX MCF
1) After the adjustment of
L120
Fig. 2
TX MCF.
L181
Item
Condition
Measurement
Adjustment
Specifications/Remarks
Test-
equipment
Unit
Terminal
Parts
Unit
Method
MCF Section
Receiver Section
REF –30.0 dBm
10 dB/
VBW
100 Hz
RBW
300 Hz
POS PK
VBW
100 Hz
SWP 8 s
SAPN 100 kHz
CENTER 73.095 MHz
ATT 10 dB
REF –30.0 dBm
10 dB/
VBW
100 Hz
RBW
300 Hz
POS PK
VBW
100 Hz
SWP 8 s
SAPN 100 kHz
CENTER 73.095 MHz
ATT 10 dB
Fig. 1
Fig. 2
*: When the volume cannot be decreased, verify the value set for “Minimum Volume”.
When “Minimum Volume Type” is set to “Lowest Limit” in the FPU, the volume cannot be decreased lower than the value set for the “Minimum Volume”.
