JAGUAR PRO ONLY
JAGUAR contains a builtin scanner subsystem
which can be used to produce detailed offset history for all or selected
frequencies. This scanner subsystem can be used in the MANUAL SCAN or AUTOSCAN
mode.
While AUTOSCAN can analyse the selected frequencies live whenever the hardware
is connected, MANUAL SCAN instead can be used later for collecting offset
history only from the recorded data. Often user has AUTOSCAN active using some
higher SPEED (=lower output resolution), but when some interesting cx is
observed, user runs later additional MANUAL SCANs with lower SPEED (=higher
output resolution) for that specific time period.
HOW TO
MANUAL SCAN is defined in MANUAL SCAN START
panel which can be invoked from STATUSBAR > S button.
When the S button is clicked, the user will see a small control panel where
he/she can define the input parameters for the MANUAL SCAN and start it.
The user just defines the following details on the MANUAL SCAN START control
panel:
• target frequency set (MW10/MW9/VFO/current playback frequency)
• time period (FROM - TO) during which MANUAL SCAN collects the offset
history
• speed: what is the time interval used for analysis, in seconds
MANUAL SCAN does not need/use "shadowing" (see AUTOSCAN help for more
details).
The S button is RED if MANUAL SCAN is running, otherwise the color depends on
the AUTOMATIC SCAN SETUP activations.
Just as with AUTOSCANs, the results of the MANUAL SCAN can be zoomed/viewed on
the EXTENDED spectrum displays. Your MANUAL SCAN results will be integrated
into the correct time position if there are earlier offset history available
for the same freqency/frequencies.
You can use ALT-E to rotate the zoom levels of the offset history - and the
keyboard key E to toggle the current EXTENDED view zoom level and the HOME
screen. EXTENDED DAY has a fixed time frame but EXTENDED is dynamic, showing
only the scanned times on the screen.
The default SPEED in MANUAL SCAN is 60 i.e. one FFT sweep per minute. SPEED can
be decreased for better output resolution. If you are studying recordings after
DXpedition, you can use a very low SPEED (even 2) but the SCAN duration may
then be several hours depending on how many frequencies are scanned and many
hours are included in the SCAN.