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TK-250
ADJUSTMENT
Panel side view
DC-IN
'Óq-Ch
LED~~
f=
~Ofr-Powe</VDL
(Red)
I SCN
DIA TA
LO
Left and Right side view
Version
Frequency range
Remark
K,M, T, E
IF1
45.05MHz
(lYPE 1)
150-174MHz
45.505MHz
LOC
K2, M2
IF1
45.05MHz
(lYPE 2)
136-150MHz
45.505MHz
LOC
I
I
!'~ ~)
i
MONITOR
Ift-m
[@Jo!!
LAMP
j-\
•
The
indicated
SSG output
levels
are tor
maximum
output.
TK-250
REQUIRED TEST EQUIPMENT
1. Stabilized
Power Supply
1) The supply
voltage
can be changed
between
5V and 18V, and the current
IS
3A or more.
2) The standard
voltage
is
7.5\;.
2. DC Ammeter
1) Class 1 ammeter
(17 ranges and other
features)
2) The full scale can be set to either
300mA
or 3A.
3) A cable of less internal
loss must
be
used.
3. Frequency
Counter
(f. counter)
1) Frequencies
of up to 1 GHZ or sa can be
measured.
2) The sensitivity
can be changed
to 250MHz
or below,
and measurements
are highly
stabie
and accurate
(0.2 ppm or sa).
4. Power Meter
1) Measurable
frequency:
Up to 520MHz
2)
Impedance:
50Q, unbalanced
3)
Measuring
range:
Full scal of 10W or so
4)
A standard
cable (5D2W
1m) must
be
used.
5. RF VTVM (RF V.M)
1) Measurable
frequency:
Up to 520MHz
or
sa
6. Linear Detector
1) Measurable
frequency:
Up to 520MHz
2)
Characteristics
are flat, and CN is 60dB or
more.
7. Digital
Voltmeter
1) Voltage
range:
FS = 18V or so
2)
Input
resistance:
1MQ or more
8. Oscilloscope
1) Measuring
range:
DC to 30MHz
2)
Provides
highly
accurate
measurements
for
5 to 25MHz.
9. AF Voltmeter
(AF VTVM)
1) Measurable
frequency:
50Hz to 1MHz
2)
Maximum
sensitivity:
1mV or more
10. Spectrum
Analyzer
1) Measuring
range:
DC to 1GHz or more
11. Standard
Signal Generator
(SSG)
1) Maximum
frequency:
520MHz
or more
2)
Output:
-20dB/O.1IlV
to 120dB/1V
3)
Output
impedance:
50Q
12. Tracking
Generator
1) Center
frequency:
50kHz
to 520MHz
2)
Frequency
deviation:
±35MHz
3)
Output
voltage:
100mVar
more
13. Dummy
Load
1) 8Q, 3W or more
•
Use a non-conductive
rad such
as a
Bakelite
rad for
adjustment
(especially
ot
trimmers
and
coiis) .
•
To protect
the
SSG,
do not
send
out
signals
while
adjusting
the
receiving
unit.
46
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