Rhotheta RT-500-M, Руководство пользователя

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RT-500-M
RHOTHETA Page 20 of 168 User Manual
Frequency /
Channel hotkey
Pressing the “Feq.Ch.” hotkey will activate the frequency/channel input
dialog (s. 7.1.2.2).
If no input is detected for about 10 seconds, the dialog will be closed
automatically. This waiting time can be changed in the “System” menu
of the “Setup” page (s. 7.4.3.6).
Memory hotkey
Pressing the “Memory” hotkey will activate the memory dialog (s.
7.1.2.3).
The memory dialog provides a list of saved frequencies or channels,
which facilitates restoring any frequency from the list to the active
bearing mode.
Frequencies/channels (max. 8 frequencies) to be scanned in the mode
“Fast Channel Scan” (available only with unlocked option), can be
selected in the “Memory” dialog.
Channel 16
Instant access to most common maritime emergency channel (or
emergency frequency 121.500 MHz).
Repeat hotkey
Calls up last valid bearing, heading and level values.
The last bearing clock in the lowermost line of the digital bearing display
(s.
Figure 13) shows the time elapsed since the last valid bearing
interruption.
Clear hotkey
Resets the internal value of the bearing averaging memory.
Mutes the acoustic alarm (if such occurred, s. 7.1.2.1).
Autoset SQL /
Squelch hotkey
Activates the automatic squelch level adjustment for the active
frequency (for further information s. 7.1.6).
Escape button
Pressing this button while a dialog is open, will close the dialog without
saving changes.
If no dialog is open, pressing this button will go back to the last
activated page. The “Bearing” page is the end-point. Pressing this
button on the “Bearing” page will have no effect when no dialog is open.
Monitoring/scanning operation will continue onto the next
frequency/channel upon pressing the “ESC” button, if e.g. currently no
data is being received on present frequency.
Home button
Pressing this button always leads to the “Bearing” page (home page)
from any other page or dialog.
If any scan is running, a dialog for leaving the scan will be opened when
the “Home” button is pressed.
Arrows
“Up” and “Down”
and the
“OK” button
The squelch level of the main bearing frequency/channel can be
adjusted manually by using the arrow buttons (this is only possible if the
main frequency is active).
If any scan mode is active, pressing one of these buttons will open the
squelch dialog (s. 7.5.3).
If no dialog is open, the
“OK“-
button will not have any effect on the
“Bearing” page. Whereas inside a dialog this button is used to confirm
an input and close the dialog.
Additional data
indication
Section for indicating additional data, such as activated or deactivated
additional hardware or elapsed time indication for the next awaited
Cospas-Sarsat pulse.