JRC JMR-5410-4X, Instruction Manual

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4-19 Section 4 Range and Bearing Measurement Methods
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APP A
APP B
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Set 11. [Length L] (length left) and 12. [R] (right).
Adjust the length of the parallel index line by changing the positions of endpoint 1 (Length L) and
endpoint 2 (R).
• Define endpoint 1 as the point on the left side when PI centre is viewed from the own ship and
endpoint 2 as the point on the right side.
• Set the mode to the endpoint change mode by pressing the [VRM] dial and turn the [VRM] dial
to change the position of an endpoint.
Clockwise: + (Direction from the centre of PI to outside)
Counterclockwise: - (Direction towards the centre of PI)
The input range is as follows.
• The minimum length of a parallel index line from the left end to the right end is 2 cm.
• The maximum length is double the PPI radius.
Memo
A negative value can also be set for [Length].
•
In the case of the left end, the left direction from the centre becomes a positive value and the
right direction from the centre becomes a negative value.
• In the case of the right end, the right direction from the centre becomes a positive value and
the left direction from the centre becomes a negative value.
Whenever the unit display switching button on the right side of [length] is clicked on, the unit
(NM/km/sm) of the numeric value that is displayed is switched.
Memo
NM denotes nautical mile, sm denotes statute mile, and km denotes kilometre.
Setting parallel index lines consecutively
When [Sequential] is checked and [Screen Fix] or [L/L Fix] is selected at floating mode switching, the
parallel index lines to be set are changed in the sequence of Index Line1
→
2
→
•••
→
8
→
1••• and setting
can be performed consecutively.
Memo
The index lines that are set to be hidden by selecting [View] - [Tools] on the menu are skipped
during operation.
Endpoint 2
Endpoint 1
Change the length of endpoint 2
Centre of PI