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7-9
measuring
instrument
(
see 7.2.)
measured
value
C/T
lOOpMHz+lOOHz
C/T
lOOkHz+lHz
C/T
80/169MHz+1xl0"®
C/T
170/240MHz+1x10"®
C/T
339 .999MHz+1x10'®
Vdc
4
V
+0.5
V
C/T
39.0625 kHz
C/T
340/410MHz+1x10"®
C/T
509
.
999MHZ+
1x10"®
C/T
510/590MHz+1x10'®
C/T
679.999MHz+1x10"®
C/T
680/7 60MHZ+
1
x
C/T
849.999MHz+1x10"®
C/T
850/930MHz+1x10'®
C/T
lOl9.99MHz+1x10~®
adjustment,
control
position
RF-U2/C563
RF-U1/L816
remarks
general:
for
the
correct sequence
of
pushbutton actions
see
operating manual
frequency
subranges
C/T setting
:
gate time
1
s
except
seq *1.2*
time base,
adjustment after
80
minutes
subrange
1,
initial
freq- (VCOI
a/VC03
) ,
C/T setting: g^te
t.
10
s
subrange
1
(VCO
la/VCO
3)
subrange
2
(VCO
Ic/VCO
3)
subrange
2,
final frequency (VCO Ic/VCO
3)
VC03,
measured
at
collector 363
y
ad just by
more/less crompressior
VCO
3,
measured
at IC 308
pin
3
Lof coil 816
subrange
3
(VCO
la)
end
subrange
3
(VCO
la)
subrange
4
(VCO
1b)
end
subrange
4,
final frequency
(VCO
1b)
subrange
5
(VCO
1c)
subrange
5,
final frequency (VCO
1c)
subrange
6
(VCO
Id)
subrange
6,
final frequency (VCO
Id)
SV
(50
)
-IdBm+ldB
RF-U1/R638
Vdc
4.5V+0.2V
PMTR
-7dBm+2dB
RF-U1/R697
PMTR
"7dBm+2dB
RF-U1/C547
PMTR
-7dBm+2dB
RF-U1/R721
PMTR
-7dBiti+2dB
RF-U1/C595
PMTR
-7dBm+dB
RF-U1/R638
PMTR
-7 dBm*
2
Vdc
+
3.4V±50mV
R681/U2-S
1*3
PMTR
ref*2o...-9+0.3dBm
R681/U2-'
PMTR
ref *2o...-9+0.3dBm
PMTR
ref
*
^
-
1
0...-2
0+2 dBm
RF
level,
adjustments after
30 minutes
RF-U1/R638
y
measured
at
mixer
851
pin
4
L
measured
at 0P301
pin
6
RF-U1/R697
if
neces
.
move position
R697
or
ground
point at
freq.
340
MHz
RF-U1/C547
value
may be altered
1.5
pF...4.7 pF
RF-U1/R721
lower
freq. range,
(add.
RF-U1/R724 may be altered)
RF-U1/C595
adjust
only
in freq. range 280 MHz... 320 MHz
RF-U1/R638
complete freq. range, adjustment
<0.5
dB
RF
level/
pin diode attenuator
T*^use
for
ref.
value
seq.
3.
2...
3.
4., set
PMTR
to dB
[ref]
R681/U2n
^add. tinfo.
only, test
pt.
LP1/U2 or RF-U1/VR2
remove
plug S2/unit
2
(coarse'
attenuator = lOOdBm not active)
add. jinfo.
only, max.
atten.-20dB
at test
pt.
LP1/U2
"Vdc«1.89V
3
i
*
if
I
tolerance exceeds close solder
joint "E"/U1
rexjeat
seq. 3.2.
to
3
.4
.(
software
I-A.
1/II-A.
1
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