
User manual: Installation and Operation of Direction Finder System RHOTHETA RT-600 / SAR-DF 517
- 17 -
2.2.7
Marine Ship Scan Mode
This chapter only applies for the standard version of the RT-600 / SAR-DF 517.
If the Marine Ship scan mode has been selected marine channels 1 to 88 (156.025 to 157.450 MHz) are
scanned, including frequencies in between. After reception of a valid signal, the bearing mode is activated.
The frequency of latest signal that has been found using the scan mode is automatically transferred to the “AUX”
memory channel.
Scan mode can be left by entering a new frequency through the frequency or memory setup.
In order to prevent the scan to stop on noise signals, it is recommended to start scanning operation with high
squelch settings. Reduce the squelch level in steps until the scan stops on an invalid signal for the first time.
Then increase the squelch level only slightly. This will result in the highest possible scan sensitivity without
reacting on noise source, e.g. resulting from disturbances generated by other equipment on the aircraft.