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20.2.2. Centre Menu Shortcuts
Set Centre to Marker:
To re-centre the sweep to a new position within the currently visible sweep, move
the marker (M1) to the desired position and press Set C = M1.
Step Up / Step Down:
The centre frequency can be moved in fixed steps (settable between 1kHz and
100MHz) by these two keys. The Set Step Val. key accesses the menu for setting the step size.
Step Value Shortcuts:
The Step Value sub menu provides two shortcut keys. Step = MΔ sets the step
size to the difference between the two marker positions M1 and M2. Step = Span/10 sets the step size
equal to one tenth of the current span i.e. one graticule division.
20.2.3. Span Menu Shortcuts
Zoom In / Zoom Out:
The span can be increased or decreased in binary steps by these keys.
Set Span equal to Marker Difference:
The Spn = MΔ key sets the span equal to the difference between
the two marker positions M1 and M2 while moving the centre frequency to the markers mid-point.
20.2.4. Start and Stop Menu Shortcuts
Set Start and/or Stop to Markers:
The Start = M1 key moves the start frequency to the current position
of marker M1. An equivalent functions is available from the Stop menu. The Strt=M1/Stp=M2 key sets
the start and stop frequencies to the current marker positions.
20.2.5. Setting by Direct Numeric Entry
Each frequency related menu has a Set by Keybd key. This creates a 0 to 9 numeric entry keypad of
large keys which can be pressed directly with the finger tip. (Alternatively they can operated with the five
way navigator). The entered value appears at the top.
The space below the keys contains the standard Palm input area. If required, this can be used to edit
the number after it is entered and before it is confirmed using standard Palm cursor-based editing.
See section 20.1 for details of how to change the input area type.
Press OK to activate the new frequency and return to the menu, or Cancel to abort and return to the
menu. Note that the Back (Home) hard key does not operate within this screen.
If Set by Keybd was the last function used within a menu, then it will be automatically selected the next
time that the menu is entered. This reduces the number of key presses required when entering new
frequencies repetitively.
20.2.6. Setting by Tab and Jog
Setting by Tab/Jog provides an alternative to settings frequencies by the Keyboard. It is particularly
relevant to users who wish to operate the PSA1301/2701T without using the touch screen, but it is
potentially relevant to all users.
Within any frequency menu, the current set frequency is displayed above the keys in a set of boxes.
The Set by Tab/Jog function allows the frequency to be changed .using the 5-way navigator (left/right to
select digit, up/down to change digit). It is also possible to select the digit to be changed simply by using
the stylus or fingertip to press it.
This also provides a quick and convenient way of stepping frequencies (although the step size is limited
to decade values).
New frequencies do not have to be confirmed. A delay of about half a second is included between a
digit being altered and the sweep parameters being changed to match. This allows digits to be scrolled
without the sweep continually restarting.
If Set by Tab/Jog was the last function used within a menu, then it will be automatically selected the next
time that the menu is entered. This reduces the number of key presses required when entering new
frequencies repetitively.