4-20
4.4 Geographical Area Call
The geographical area call sends a call to all ships within a specific area you designated in your
geographical area call message. In the figure below, for example, the call will be sent to all ships
within 10
°
S and 5
°
E of 34
°
N, 135
°
W.
Reference point
(For example,
34˚N 135˚W)
5˚
140 W
135 W
10˚
34 N
24 N
4.4.1 Sending a geographical area call
1. Press the [CALL] key at the DSC standby screen, and press the [ENT] key to open the CALL
TYPE menu.
RELAY SEL
POLLING
NEUTRAL
MEDICAL
RELAY ALL
DISTRESS
***
Send message
***
STATION ID
PRIORITY
COM. TYPE
COM. FREQ
DSC FREQ
: Individual
: 001234567
: Routine
: Telephone
: No inform
: 12M-INTEL
PSTN CALL
TEST CALL
ALL SHIPS
GROUP CALL
AREA CALL
POSITION
INDIVIDUAL
CALL TYPE
If this part of the menu
appears use to scroll.
2. Use
or
to select AREA CALL and press the [ENT] key.
3. Press the [ENT] key to open the AREA menu.
GO TO ALL VIEW
***
Send message
***
CALL TYPE
PRIORITY
COM. TYPE
COM. FREQ
DSC FREQ
: AREA CALL
: ROUTINE
: TELEPHONE
: NO INFO
: 2M-INTL
--
˚N
---
˚E ↓
--
˚ →
--
˚
AREA
4. Enter latitude, longitude, southerly degrees and easterly degrees of area with the numeric
keys and press the [ENT] key. Use
or
to switch from North to South latitude and vice
versa and East to West longitude and vice versa.