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RHOTHETA User Manual RT-800
Page 22 of 192
displayed.
Alarms / Errors /
Warnings
Section for indicating any faults in the system, alarms and/or
warnings (s. 6.1.2.1).
Frequency /
Channel hotkey
Pressing the “Feq.Ch.” hotkey will activate the frequency/channel
input dialog (s. 6.1.2.2).
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. 6.4.3.7).
Memory hotkey
Pressing the “Memory” hotkey will activate the memory dialog (s.
6.1.2.6).
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. Fig. 7) 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. 6.1.2.1).
Autoset SQL /
Squelch hotkey
Activates the automatic squelch level adjustment for the active
frequency (for further information s. 6.1.6).
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
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. 6.5.3).