Chapter 5: Standard Chart Operations 5-11
Placing a Waypoint
Note: You can enter waypoints as Loran TDs which are converted to Lat/
Long coordinates. However, although the waypoint is shown in both Lat/
Long and Loran TDs in the Waypoint List, you can subsequently only edit
the position as Lat/Long coordinates. TD entries in the Waypoint List are
shown only for those waypoints which were entered as TDs.
3. Edit the Loran parameters as required, using:
i. The CHAIN soft key, which enables selection of both the Chain and it’s
Slave:
ii. The ASF1/ASF2 soft key, which presents two soft keys for editing ASF 1
and ASF 2 parameters independently:
iii. The SET TD 1 and SET TD 2 soft keys, which enable editing of each TD’s
parameters independently.
CHAIN ASF1/ASF2 SET TD 1 SET TD 2
CHAIN 6731 - NELS Lessay
SLAVES Y - Z (24 -39)
TD 1 29138.0
TD 2 44713.8
ASF 1 +0.0
ASF 2 +0.0
WPT POSITION (LORAN TDs)
D5591-1
SELECT CHAIN
CHAIN 6731 - NELS Lessay
SLAVES Y - Z (24 -39)
TD 1 29138.0
TD 2 44713.8
ASF 1 +0.0
ASF 2 +0.0
WPT POSITION (LORAN TDs)
D5592-1
SELECT SLAVES
SET ASF 1 SET ASF 2
D5593-1