MANUAL SCAN


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.