8
FREQ Key
Press the FREQ key to set frequency range of interest. There are two types of setting
screens for this operation:
Press FREQ once to enter START and END FREQUENCIES.
Press twice to enter CENTER FREQUENCY and SPAN.
Use the left/right arrow key to navigate digit positions, the alpha-numeric keypad to enter values, and
up/down arrow key to jump between upper and lower entries. Press ENTER key to save changes
and exit. If Broadband Calibration is selected it will go directly back to the Measurement Screen. If
Frequency Specific Calibration is selected it will exit to the Calibration procedure. See
Page 20
SCALE Key
The Scale key is used to cycle through preset vertical scales on the measurement screens.
SWR and RL have only one scale on the left side of the plot. Repeated presses will present
the next scale range in the cycle. See Section 3 Measurement screens for more information
on selecting and changing Scales.
SWEEP/CW Key
The Sweep/Continuous Wave key will switch the modes between them. The LED indicator flashes
when the instrument is sweeping the selected band or transmitting the center frequency.
Sweep
is the normal mode performing frequency sweeps from low to high frequency
selected and measurements appear in graphic plots. Continuous Wave mode stops the
Sweep mode and only emits a
continuous wave
at the Center Frequency. This
changes the graphic plot to a list of tests showing digital value responses. The
Continuous Wave mode is useful when the antenna or other DUT is being tuned or
adjusted. In CW mode, measurements refresh at a faster rate than in Sweep mode.
See the
Measurement Screens
section on page 17 for information on setup and cycling through the
readings list. To exit Sweep/CW, press SWR/RL or VNA to enter those modes.
The CRSR (Cursor) key is used to activate Cursor A or both A & B Cursors with a second
press of the key. Cursors are controlled as follows:
A: Single cursor with data on screen. Cursor A LED lit. Use the left/ right arrow key to
move the cursor. Readings will automatically update to cursor’s position.
A & B: Press the CRSR key a second time to add the B cursor. Both A & B Cursor LEDs
will be lit.
Dual cursors will display on screen with curso
rs’ differential reading (CRSR ∆) below Cursor B. The
active cursor will be the last CRSR summoned with the CRSR key and the left/right arrow key will
control that cursor.
To alternate between the Cursors A & B to change which cursor is active, press the CRSR key as
needed. Exit cursors
– Press the ESC key once to exit Cursor B only or reduce to Cursor A only and
twice to exit both cursors.
The Escape key has the following uses:
