Furuno Navtex NX-700-A, Service Manual

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2.1 Nav data
2-6
2.1.1 Setup of Nav data input
- [MENU] -> Service -> INS Input Speed (4800/9600/19200/34800)
- [MENU] -> Initialize 2 -> Sumless NMEA (Receive/Ignore)
INS Input Speed:
Select the bit rate for serial data input of the Nav data.
Sumless NMEA:
Select whether or not to load a sentence with or without checksum. Basically,
sentences are without checksum in case of NMEA Ver.-1.5 while with checksum in
case of Ver.-2.0 and IEC61162.
IEC61162 sentences are required for type approval. Do not connect the GPS
outputting sentences without checksum.
Note:
With no input of the ZDA sentence, the received time is not recorded. With no input of
the position data such as GNS and GGA sentences, Auto mode is not enabled and
broadcasting of all stations are received(selected).
To enable the Auto mode,
- Program Ver-02.01: Select “ON” in [MENU] -> NAVTEX -> Auto Rcv Mask
- Program Ver-01.02: Select “Auto” in [MENU] -> NAVTEX -> Receiver Mode
Setup:
1. Select [MENU] -> Service -> INS Input Speed.
2. Set the speed to 4800 in case the NAVTEX data is in IEC61162-1 format. In case the
Nav data is inputted from the INS, set the speed according to the specifications of the
INS.
3. Select [MENU] -> Initialize 2 -> Sumless NMEA.
- “Receive” : NMEA Ver.1.5 (no checksum filed in sentence)
- “Ignore” : NMEA Ver.2.0 or later, IEC61162 (checksum added in sentence)
Initialize 2
Sumless NMEA >Ignore
ACK Command >Ignore
Serviceman Test
Fill Memory
Rcv Mon+NMEA Test
DX RX Decision
>Soft
CRLF Check >off
Ignore
Receive