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18.6. Turning Off / Power Saving
When operating from batteries the unit should be turned off when not in use. Press and hold the Back
(Home) key. The display will go off, the status of the instrument is not lost and all data is retained apart
from any running sweep. To turn back on, press the Back (Home) key again *. Alternatively use the
recessed green on/off key on the top edge of the Palm T
|
X.
Note
: an Auto Sleep function that automatically turns the unit off after a delay is available - see System
menu, section 19.15. Auto Sleep is disabled whenever external power is connected.
* Note:
When turning the unit back on, it may be necessary to press the key several times before it
responds. This is because, in sleep mode, the keys are being polled very slowly as part of the power
saving system.
19.
The PSAnalyzer Menu System
19.1. Home Menu
Dark grey key duplicates Back/Home hard key
press in the top left hand section of the menu area
Back
(Home)
Help
Run
Stop
Navigate
19.2. Menus Summary
Mode:
set the control mode to Centre plus Span, or Start plus Stop, centre plus demodulation (Zero
Span) or Quick Menu. Also provides a function called Preset which sets defined conditions from a single
key press. Note that the labels of the next two keys depend upon the mode setting.
Centre:
set the centre frequency of the sweep (not available when mode = Start/Stop). A further
sub menu of Set Step Value can be selected from the Centre menu.
Span:
set the span of the sweep (not available when mode = Start/Stop).
Start or Stop:
set the start or stop frequency of the sweep (not available when mode = Centre/Span,
Zero Span or Quick Menu).
AM/FM:
set the type of audio demodulation for Zero Span mode (not available when mode =
Centre/Span or Start/Stop).
Quick Menu:
select the Quick Menu mode of operation which opens a new menu with dark green
keys in place of blue. See section 19.17 for detailed information on Quick Menu operation.
All functions are operated from one of ten sub-
menus selected from the Home Menu. To exit a
sub menu and return to the home menu, press the
Back (Home) hard key.
Alternatively pressing the dark grey area on
the left hand side directly above the key row of
a sub menu duplicates the action of the Back
(Home) key.
When using a stylus or finger tip this may be
more convenient than using the hard key
.
This “hidden” key exists in all menus apart
from the Home menu.