Operating Instructions
4) Select
Units meters (feet)
to switch between the different unit options.
All measurements and all traces are immediately updated to reflect the unit change.
Nanoseconds are displayed separately.
Fine Vp control
By default, the CT100 displays 3 decimal places for Vp; however, the CT100 can display 6
decimal places for Vp when extremely precise distance measurements are desired.
1) If there is a menu on the screen, press the
MENU
button until the menu disappears.
2) Press the
MENU
button. The screen will display the
Main
menu.
3) Select
Measurement
from the menu. The
Measurement Settings
menu appears.
4) Select
Vp 3(6) Sig Figs
from the menu. The CT100 will now display 6 decimal places
for the Vp readout on the screen when
Vp 6 Sig Figs
is shown on the menu.
5) When the CT100 is in
Fine Vp
mode, a new function,
Fine Vp
, is added to the
M-
FUNCTION
knob. When the
M-FUNCTION
knob is set to
Fine Vp
, turning the knob will
change the Vp value by the millionths. The Vp value can be changed by thousandths
as normal by setting the
M-FUNCTION
knob to the
Coarse Vp
function.
Relative reflection coefficient
The CT100 measures the relative reflection coefficient between cursors. When the two
cursors of the CT100 are positioned on either side of a change in impedance, this
measurement is the reflection coefficient for that change. By default, the value is displayed
in
Classic
mode, displaying the true reflection coefficient relative to the signal at the input of
the reflection. The CT100 can also measure in
1502C
mode, which displays a reflection
coefficient relative to the signal at the input of the cable.
1) If there is a menu on the screen, press the
MENU
button until the menu disappears.
2) Press the
MENU
button. The screen will display the
Main
menu.
3) Select
Measurement
from the menu. The
Measurement Settings
menu appears.
4) Select
RRC Method
from the menu. This will toggle the CT100 between the
Classic
RRC calculation and the
1502C
calculation as displayed on the screen.
Vertical reference
Use the vertical reference system to increase the accuracy of vertical measurements,
including impedance, reflection coefficient, and return loss.
1) From the
Main
menu, go to the
Measurement
menu.
2) On the right side, an option for
Vert. Ref.
Appears. Select this. The
Vert. Ref.
menu
appears.
50
Mohr CT100 / CT100HF Operator's Manual
