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RHOTHETA User Manual RT-800
Page 60 of 192
If the signal was lost during the scan mode, the scanning process continues with the next
frequency / channel after up to 30 seconds (depending on the setting of the bearing indication
time, and how many seconds of the indication-time has already elapsed until the signal was
interrupted).
“Marine Scan” = On
Active frequency = 156.850 MHz
Signal is not present.
“Marine Scan” = On
Active frequency = 157.425 MHz
Signal is present.
Fig. 40 Marine scan indication on the "Bearing" page
In case that an unwanted signal is found, the scanning process can be proceeded
immediately by pressing the “ESC” button.
Note
If there are interferences on the frequency band which are above the squelch level, scanning
stops as well at these interferences (they are interpreted as signals). This may be avoided by
adjusting the squelch level manually using the “Up” and „Down“ arrow buttons.
Because of this, it might be possible that weak signals are not received anymore (for correct
squelch adjustment read also 6.5.3).
6.2.4.2 Marine Scan Settings
o
To start the “Marine Scan” mode select the corresponding line on the “Scan” page and
press “OK” or the hotkey “Start Scan” (s. Fig. 41, position 1).
o
Pressing the hotkey “Stop Scan” (s. Fig. 41, position 2) will terminate the scan mode
and change to the bearing of the frequency, that was set before the scan mode has
been activated.
o
The scanning process can be ceased also by pressing the button “HOME”. Then the
direction finder changes to the bearing of the frequency, which was set before the scan
mode was started.