Specifications

YEOMAN Sport 39
Plotting position error
Both manual and YEOMAN position plotting can be
checked by the same methods as above. The likeliest
form of error with the YEOMAN is movement of the chart
since it was last referenced. If in any doubt it is sensible
to re-reference, which takes but a few seconds, before
plotting.
It is suggested that after initial installation, a careful check
against a manual plot and known scenario (e.g. vessel held in
marina berth with well identified RADAR targets such as
channel markers). Regular checks against well identified
targets in good conditions will assist both with functional
familiarity and with confidence and reliability assessment when
needed under more testing conditions.
10.3 RADAR troubleshooting
If the RADAR ‘lollipop’ cannot be initiated by setting the
YEOMAN into RADAR plotting mode, a suggested list of
symptoms and tests is given below:
a) Ensure that RADAR is receiving compass data and is set
in magnetic compass ‘mode’. The RADAR will not
accept range/bearing data and plot the ‘lollipop’
otherwise. Check the compass and interfacing to the
RADAR.
b) If the RADAR is accepting compass data then remaining
areas to check are-
selection of Waypoint plotting mode on RADAR, see
manufacturer’s handbook
interfacing to the RADAR. Check this by linking the GPS
directly to the RADAR to see if conventional GPS
RADAR Waypoint plotting is working.