User's Manual

Table Of Contents
NACOS Platinum
ED 3100 G 110 / 02 (2011-10)
Operating Instructions
A-1 General Information
A RADAR.fm / 10.11.11
A-20
Every pulse length has a particular pulse repetition frequency assigned to it; therefore, when the
pulse length or range is changed, the repetition frequency changes too (See chapter 1.4.8 on page
A-23).
1.4.5 RADAR Setting for the Display of Racon Codes
The code of Racons consists of a radially arranged dash-dot code which begins in the radar video a short
distance behind the beacon position. By means of different codes described in the Lists of Lights, the
approach points equipped with Racons can be clearly identified.
Most Racons transmit in the X-Band, but there are some Racons installed which transmit in the S-Band.
The majority of Racons change their transmission frequency slowly throughout the entire frequency
band, and so they are not received in every revolution of the antenna.
For the setting of the radar, the same basic principles are applicable as for SART detection (See chapter
1.4.7 on page A-21)
1.4.6 RADAR Settings for Target Enhancer Detection
The target enhancer is an active device on a target vessel which transmits an X-band pulse upon recep-
tion of any X-band radar signal. The pulse length of this secondary radar pulse does not typically reflect
the size of the actual target vessel but is fixed. In general this kind of equipment is used on small boats
which have not a significant radar profile like pleasure boats or wooden boats or lifeboats. There are no
special settings required for detection of target enhancers. They are just visualized like a very well
reflecting target.