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Model 2001
OPERATING INSTRUCTIONS
Figure 3-7. Percentage Modulation/Modulating Frequency
3.6.2 FREQUENCY CONTROL
3.6.3 SWEEP WIDTH CONTROL (FM Modulation)
1 KHz
Normal internal control of frequency is provided by a
1 0 0
2 K H 2
80
9
Z
Q
t-
a
A
2
60
0
r
LL
0
$
4 0
a
t-
z
W
0
LL
2 0
a
0
jumper wire connected between pins 9 and
8
of the
REMOTE plug as shown below.
3 0 K H z
4 0 K H z
\
5 0 K H z
4
J
REMOTE PLUG
1 0 0 H z
l K H z
l O K H z
lOOKHz
MODULATION FREQUENCY
(
TO FREQUENCY
CONTROL CIRCUIT
FRONT PANEL
FREQUENCY
CONTROL
To provide external control, remove the jumper and
connect pin 9 to an external Frequency control as shown
below.
EXTERNAL
1
TO FREQUENCY
CONTROL CIRCUIT
FRONT PANEL
-
16
FREQUENCY
CONTROL
Normal internal control of sweep width is provided by a
jumper wire between pins 11 and 12 of the REMOTE
plug as shown below.
REMOTE PLUG
*
1
1
"WEEP
WIDTH
CONTROL CIRCUIT
FRONT PANEL
SWEEP WIDTH
CONTROL
-
To provide external control, remove the jumper and con-
nect pin 12 t o an external Sweep Width control as shown
on page 3-10.
Tuning sensitivity, which is approximatley 16 MHzJvolt, is
shown graphically in Figure 3-8.
Model 2001
OPERATING INSTRUCTIONS
1KHz
100
~
2KHz
80
~
z
Q
l-
e:{
30KHz
"'
.J
~
60
0
0
~
LL
0
40KHz
"'
w
40
(!)
e:{
I-
Z
W
U
50KHz
a::
w
20
a.
o
100Hz
1KHz
10KHz
100KHz
MODULATION FREQUENCY
Figure 3-7. Percentage Modulation/Modulating Frequency
3.6.2 FREQUENCY CONTROL
Normal internal control of frequency is provided by a
jumper wire connected between pins 9 and 8 of the
REMOTE plug as shown below.
2001
REMOTE PLUG
REAR PANEL)l
____ ...-J}
2
3
7
~\...------
+16
t " ' " ' ' ' ' ' " ' '
CONTROL CIRCUIT
FRONT PANEL
_I
FREQUENCY
.:::..uL-_ _ _
~-'
CONTROL
To provide external control, remove the jumper and
connect pin
9
to an external Frequency control as shown
below.
2001
EXTERNAL
FREQUENCY
t
CONTROL
10K
REMOTE PLUG
REAR PANEL)l
8
9
\
+16
10Kt·
I
TO
FREQUENCY
CONTROL CIRCUIT
FRONT PANEL
-16
FREQUENCY
--"==----""--'
CONTROL
Tuning sensitivity, which is approximatley 16 MHz/volt, is
shown graphically in figure 3-8.
3.6.3 SWEEP WIDTH CONTROL (FM Modulation)
Normal internal control of sweep width is provided by a
jumper wire between pins
11
and
12
of the REMOTE
plug as shown below.
2001
REAR PANEL""\
___
~l,o
/\
REMOTE PLUG
I~---------
h
SWEEP WIDTH
CONTROL CIRCUIT
FRONT PANEL
SWEEP WIDTH
CONTROL
To provide external control, remove the jumper and con·
nect pin
12
to an external Sweep Width control as shown
on page 3-10.
3-9
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