Programming - Wavetek 2001 Instruction Manual

Model 2001
OPERATING INSTRUCTIONS
(less amplitude variation) input signal t o the device under
test than is obtainable with the internal monitor, since the
monitor point is located at the point where greatest flatness
is desired, and is not affected by cable VSWR or input
impedance o f the device under test. Another application
is t o level at the output point of a wide band power ampli-
fier, in order to increase the output power capability of
the sweep generator.
To operate with an external monitor, first set the OUTPUT
controls for maximum, +10 dBm. Next, connect the out-
put from the external monitor to the Front Panel BNC
jack labeled ALC I N and set the ALC EXTIINT Switch
t o the EXT position. The signal from the external monitor
must be of a negative polarity between 0.2 and 2 volts. I f
the signal is larger than 2 volts, use a resistive divider
to obtain the less than 2 volts signal. While observing the
output from the monitor on an oscilloscope, adjust the
Vernier OUTPUT Control until the monitor signal becomes
leveled. (Refer to Figure 3-5.)
Rear Panel
Remote Jack J 1 0 1
VOLTAGE AND SIGNAL SOURCES
Pin 1 - Ground
Pin 2 - +16 volts .I/
I
Pin 3 - -16 volts
. (
Pin 4 - -18 volts
f'
Pin 10 - Ramp for Driving Sweep Width Control
Pin 15 - Same as Pin 10 Except Inverted
I.
:
Partiallv
CONTROL INPUTS
Pin 6 - Output Level Control (AM Modulation)
.--
. - - - . A : \
Unleveled
Pin
7
- Sweep Time Trigger Input
Pin 9 - Frequency Control
Figure 3-5. External Monitor Output Signal
Pin 12 -Sweep Width Control (FM Modulation)
3.6 PROGRAMMING
INTERNAL CONTROL
Pins 5, 8 and 11 are used to program internal operation of
Output, Frequency and Sweep Width.
Connections for remote operation of OUTPUT AMPLI-
TUDE, FREQUENCY and SWEEP WIDTH PIUS EXTERNAL
UNUSED
AM and FM MODULATION and triggering of the sweep
Pins 13and 14 are unused
circuit is provided by a Rear Panel REMOTE programming
connector. The programming jack and its pin functions are
shown below.
Model 2001
(less amplitude variation) input signal to the device under
test than is obtainable with the internal monitor, since the
monitor point is located at the point where greatest flatness
is desired, and is not affected by cable VSWR or input
impedance of the device under test. Another application
is to level at the output point of a wide band power ampli-
fier, in order to increase the output power capability of
the sweep generator.
To operate with an external monitor, first set the OUTPUT
controls for maximum, +10 dBm. Next, connect the out-
put from the external monitor to the Front Panel BNC
jack labeled ALC I N and set the ALC EXT/I NT Switch
to the EXT pOSition. The signal from the external monitor
must be of a negative polarity between 0.2 and 2 volts. If
the signal is larger than 2 volts, use a resistive divider
to obtain the less than 2 volts signal. While observing the
output from the monitor on an oscilloscope, adjust the
Vernier OUTPUT Control until the monitor signal becomes
leveled. (Refer to Figure 3-5.)
°1 ______
#f,eled
\ ,/ Partially
-,
~eveled
-----:'
'------'-:~unleveled
Figure 3-5. External Monitor Output Signal
3.6 PROGRAMMING
Connections for remote operation of OUTPUT AMPLI-
TUDE, FREQUENCYand SWEEP WIDTH plus EXTERNAL
AM and FM MODULATION and triggering of the sweep
circuit is provided by a Rear Panel REMOTE programming
connector. The programming jack and its pin functions are
shown below.
OPERATING INSTRUCTIONS
1
2
3
0 0 0
4 5
6
0 0 0
7
8
9
0 0
0
10
11 12
0 0
0
13 14 15
0 0 0
Rear Panel
Remote Jack J 101
VOLTAGE AND SIGNAL SOURCES
Pin 1 - Ground
Pin 2 - +16 volts Y
Pin 3 - -16 volts
~
Pin 4 - -18 volts (
Pin 10 - Ramp for Driving Sweep Width Control
Pin 15 - Same as Pin 10 Except Inverted
CONTROL INPUTS
Pin 6 - Output Level Control (AM Modulation)
Pin 7 - Sweep Time Trigger Input
Pin 9 - Frequency Control
Pin 12 - Sweep Width Control (FM Modulation)
INTERNAL CONTROL
Pins 5, 8 and 11 are used to program internal operation of
Output, Frequency and Sweep Width.
UNUSED
Pins 13 and 14 are unused
3-7