Using the OSICS ECL Module
112
OSICS User Manual
Step 2 – Set the frequency of the module INTERNAL modulation source:
1.
In the ECL
Unit Setup
menu, expand the
Modulation
menu and enter the
Set
Frequency
sub-menu.
The
Set
Frequency
sub-menu appears and displays the current selected modulation
frequency.
Figure 74: ECL Unit Setup – Set Frequency
2.
Modify the frequency value as follows:
The ECL module’s built-in TTL signal-generator can provide a TTL modulation signal
in the range of 153 Hz–1 MHz, but for optimum modulation performance we
recommend applying modulation frequencies within the specified range of the ECL
module.
a. Turn the rotary knob to put the cursor under the digit you want to modify and
press the knob to highlight it.
b. Turn the knob clockwise to increase the value or anticlockwise to decrease it and
press the knob to validate the selected digit.
c. Perform steps 1. and 2. again with the other digits to modify.
d. Turn the rotary knob clockwise to put the cursor under
ENTER
and press the
knob to validate the new frequency value.
The frequency is updated to the "real frequency". This screen displays the actual
modulation frequency produced by the OSICS ECL oscillator, which may slightly differ
from the values you have set.
3.
Press the knob to validate the displayed real frequency.
Step 3 – Set the modulation control:
1.
Access the ECL
Unit Setup
Accessing an OSICS Module Setup
).
2.
Expand the
Modulation
menu and enter the
Control
sub-menu.
The
Modulation
control
sub-menu appears and displays the current state of the
modulation control.
Main
EXIT
2
3
4
5
6
7
8
Unit Setup - Set Frequency
ESCAPE
▲
Frequency :
f = 0016700 Hz
Modify the value.
ENTER
1
