Elecraft PX3 Owner's Manual - Manual (Page 13)

13
S P AN sets the frequency span of the display. The
available range is 2 kHz to 200 kHz. The start and
stop frequencies are displayed at the top (left and
right edge respectively) of the spectrum window.
For example, a 200 kHz span will be displayed with
-100.0 in the upper left and +100.0 in the upper
right corners.
C E N T E R sets the center frequency of the display,
which is also displayed at the top center of the
spectrum window. The center frequency of the
display may be offset from the KX3’s frequency
with the
SELECT knob. The center frequency
will then track changes in the KX3’s frequency,
maintaining the same offset.
Hold C E N T E R a second time to return the center
frequency to the KX3's VFO A frequency.
This function is disabled if MENU:CenterEn is set
to OFF.
R E F sets the amplitude reference level of the
display, both spectrum and waterfall. The reference
level is the signal level in dBm that corresponds to
the bottom of the spectrum display and the
minimum (dark blue) signal level of the waterfall
display. The amplitude labels that appear along the
left edge of the spectrum display may be in S-units
plus dB over S9 or dBm, depending on the setting
of
MENU:Lvl Mode . The KX3's attenuator and
preamp have no affect on the displayed amplitude
when dBm is selected, but the effect of the
attenuator and preamp will be seen when the
display is in S-units.
S C AL E sets the scale, or range, of both the
spectrum and waterfall displays. For example,
Scale (dB):
60
means that the bottom of the
display is 60 dB below the top.
D I S P toggles between the spectrum, and
combination spectrum/waterfall display modes.
A V E R AG E allows you to turn on and adjust display
averaging. The averaging is adjusted in units of
display update periods. For example,
Averaging
time: 20 means the display is averaged over
every 20 update cycles. Tap D I S P to exit the
average parameter adjustment mode while
maintaining the selected averaging period. Hold
A V E R AG E to turn off averaging.
Menu
M E N U accesses an alphabetical list of functions
(see Menu Functions, page.28). Scroll through the
list with the
SELECT knob and tap the knob to
select an item. For items with only two or three
values, tapping the
SELECT knob toggles
between the parameter values. For other items, turn
the
SELECT knob to choose the parameter value.
Tapping the SELECT knob a second time un-
selects the item and exits the menu. If you wish to
terminate the item but keep the menu active, tap
M E N U . When you wish to exit the menu, tap
M E N U again.
Programmable Function Keys
Most menu functions can be assigned to a function
key by tapping
F N 1 through F N 4 or holding F N 5
through F N 8 while the menu item is displayed but
not selected. When a menu function is selected, the
text on the screen prompts you to either tap the
knob to select it or a FN key to assign it to the key.
If a function was previously assigned to a key,
assigning a new function over-writes the original
function.
L AB E L S displays the function assigned to each
key. Keys identified with the label FN number have
not been assigned to a menu function.
L AB E L S
toggles the function key labels on and off. Note that
the function keys are still active even when the
labels are turned off.