R&S FSMR, Operating Manual

Page: 100 / 955

Setting Parameters
R&S FSMR
1166.3363.12 3.12 E-1
Setting Parameters
Parameters are set either by simple selection (selection parameters) or by (alpha)numeric entries in
data entry windows or tables.
The numeric keypad on the front panel, an external keyboard (optional), a spinwheel and the cursor
keys are provided for the entry of instrument parameters in an entry window or in a table.
The external keyboard is optional. If it is not fitted, the help line editor is called automatically for entry of
alphanumeric parameters. The help line editor provides for selection of individual letters and a number
of special characters which are copied into the actual entry window.
Numeric Keypad
mV
0
1 2 3
4
5 6
7
8 9
.
-
ESC
ENTER
CANCEL
GHz
MHz
kHz
Hz
-dBm
dBm
dB
dB..
BACK
s
V
ms
mV
µs
µV
ns
nV
The numeric keypad is provided for entry of numeric
parameters. It contains the following keys:
•
Number keys 0 to 9
•
Decimal point
Inserts a decimal point "." at the cursor position.
•
Sign key
Changes the sign of the mantissa or exponent of a numeric
parameter.
A "-" is inserted at the cursor position in case of an
alphanumeric parameter.
•
Unit keys ( GHz/-dBm , MHz/dBm , kHz/dB and Hz/dB )
– Provide the numeric value entered with the selected unit
and terminate the entry.
The unit keys are all assigned the value "1" for
dimensionless quantities or for level entries (e.g., in dB).
The unit keys thus assume the function of an
ENTER
key. The same applies for an alphanumeric entry.
–
Open and close the selection windows of tables.
•
BACK key
– Deletes the character left to the cursor with numeric
entry.
– Allows for toggling between the current and the previous
values subsequent or prior to entry (UNDO function).
•
ESC/CANCEL key
– Aborts the entry before it has been terminated. The
previous value is restored.
– Closes the entry field after termination of input.
– Closes system messages.
•
ENTER key
– Terminates the input of dimensionless quantities. The
new value is set.
Note: The ENTER keys assumes the function of the
Hz key for frequency input, and the function of
the
µ
s(kHz) key for time input.