User's Manual Part 1b

5. DSC GENERAL MESSAGE CALLING, RECEIVING
5-23
• Send the ACK with position information:
1) With [ACCEPT] selected, push the ENTER knob.
2) With [GO TO CALL] selected, push the ENTER knob.
• To send the ACK with no position information, rotate the ENTER knob to select
[UNABLE] in the user options area then push the knob. The screen changes as be-
low.
5.8 PSTN Call
The PSTN call allows the making and receiving of telephone calls over public switched
telephone networks. To use the PSTN call feature, use a handset which has a HOOK
ON/OFF function. The standard supply handset has this feature.
5.8.1 How to send a PSTN call
1. Press the OTHER DSC MSG key.
TX 2187.5/ RX 2187.50 kHz
COMPOSE MESSAGE
MSG TYPE : POSITION ACK
TO : 987654321 CAPTAIN_2575
PRIORITY : SAFETY
LAT : 09
°
12.1234’ N
LON/UTC : 123
°
45.1234’ E /12 : 34
DSC FREQ : 2187.5 kHz
2187.5/ RX 2187.50 kHz
[SENDING] ELAPSED TIME:
POSITION ACK 00H01M16S
TO :
987654321 CAPTAIN_2075
POS/UTC :
--
°
-- ’ - ---
°
-- ’ - / -- : --
INFO PRINT