User manual: Installation and Operation of Direction Finder System RHOTHETA RT-600 / SAR-DF 517
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Setup Page
(1)
>Store< push-button must be pressed in parallel if a value of a setting shall be modified. If a value can be
modified, the background stops to blink.
(2)
>Select< rotary switch used to scroll through the menu options. The value of the actually activated menu
option is high-lighted with dark background and blinking.
(3)
>Value< rotary switch used to change values in menu options (>Store< (1) has to be pressed in parallel if
a value shall be modified).
(4)
>SN-Ratio< menu option representing the necessary Signal-To-Noise-Ratio (Difference between signal
and noise level) used as criterion for the automatic squelch function. Please refer to the chapter “Squelch
Operation” for details. Default value is 6.0 dB.
(5)
>Mounting Position< menu option to select Top- or Bottom-Mounting of the DF antenna. In case of
rooftop installation (e.g. on land vehicles), “Top” shall be selected. In case of bottom-down (upside-down)
installation (e.g. on a helicopter), “Bot” shall be selected. If this option is not selected correctly, all bearing
values will be mirror-inverted.
(6)
>Bearing Offset< menu option to include a constant offset correction to the bearing indication. Bearing
values in degrees will be changed according to the offset value.
(7)
>Maximum External Dimming Voltage for Legends< menu option which sets the upper limit of the
dimming input voltage for the legends-panel. Range=[1.5 … 28]V
(8)
>Minimum External Dimming Voltage for Legends< menu option which sets the lower limit of the
dimming input voltage for the legends-panel. Range=[1.5 … 28]V
(9)
>Page< rotary switch to be turned right-hand to go back to the Direction Finder page. A left-hand turn on
this rotary switch will show up an additional service page with debug information used for system checks.
(10) >Extended Serial< It is possible to to enable or disable the extended serial data protocol. Only of interest,
if serial data is used by any connected control units like moving maps or computers. For detailed
informations see (Serial interface data protocol (short description)> at page 36). If there are compability
problems with already existing older remote control software, it is recommended to switch OFF the
extended serial data protocol.
