Furuno NX-700-B specifications Navtex system operation

NAVTEX system operation

The world is divided into 16 areas (called Navareas) as shown at right. Each Navarea has multiple NAVTEX stations and each NAVTEX station has an identification code, from “A” to “Z.”

The service range of a NAVTEX station is typically 200-400 nautical miles depending on the terrain and station transmit power. A NAVTEX station normally broadcasts every four hours.

There are two channels including international channel, 518 kHz, and local channels, 490 and 4209.5 kHz. International channels broadcast messages in English. On local channels, 490 kHz, is available in the UK, France, etc., using their own languages. 4209.5 kHz is allocated for NAVTEX broadcasts in tropical areas - not widely used at the moment.

SPECIFICATIONS

NAVTEX RECEIVER
Receiving Frequency	518 kHz and 490 or 4209.5 kHz
Mode of Reception	F1B
Sensitivity	2 ∝ V e.m.f. (50 ohms), 4% error rate
Input Protection	Withstands 30 Vrms for 15 min or more (w/ preamp unit)
Spurious Emission	1 nW or less
Message Category	A : Navigation warning
	B : Meteorological warning
	C : Ice report
	D : Search and rescue information/ piracy
	and armed robbery
	E : Meteorological forecast
	F : Pilot message
	G : Decca message
	H : Loran-C message
	I : Omega message
	J : Differential omega message
	K : Other electronic navigational aid
	and system message
	L : Navigational warning (additional)
	M to Y : Reserved - presently not used
	V : Notice to Fishermen (US only)
DISPLAY	Z : QRU (no message on hand)
Screen Size	5'' monochrome LCD, 76 x 100 mm
Resolution	240(H) x 320(V)
Display Modes	Message, List, NAV Data
ID Storage	200 x 2 channels
Message Storage	200 messages x 2 channels (100,000 characters x 2 channels)
PRINTER SECTION (for NX-700-A)
Printing System	Line thermal head printing system
Printing Paper	Thermal paper (58 mm x 30 m)
Printing Width	48 mm
Character Format	24 x 12 dot
Dot Pitch	8 dots/mm
Number of Characters	32 characters/line
Print Speed	20 mm/sec.
ANTENNA UNIT
Antenna Type	NX-7H: H-field antenna with preamp
Output Impedance	50 ohms
Power Supply	+8 V to +9 V (thru co-ax cable)

INTERFACE
Input	IEC61162-2
	ACK, GGA, GLL, GNS, NMK, NRQ, RMC, VBW,
	VHW, VTG, ZDA
Output	IEC61162-2 message data for INS, PC
	ALR, NRX
	RS-232C for printer(NX-700-B only)
Alarm	Contact closure signal (max. 0.5A, 50V) for SAR alert
POWER SUPPLY
NX-700-A:	12-24 VDC, 1.5-0.8 A
NX-700-B:	12-24 VDC, 0.7-0.4 A
ENVIRONMENT (fully complied with IEC 60945 3rd/4th ed.)
Temperature	-25°C to +70° C(-13°F to +158° F)
Antenna Unit:
Receiver, Display Unit: -15°C to +55° C(5° F to +131° F)
Waterproofing
Antenna Unit:	IP66
Receiver Unit:	IP20
Display Unit:
NX-700-A	IP20
NX-700-B	IP25 (front panel)

EQUIPMENT LIST

Standard
1.	Receiver Unit NX-7001			1 unit
2.	Antenna Unit NX-7H			1 unit
3.	Display Unit with Bracket (Specify when ordering)			1 unit
	NX-700-A: Display with Printer, NX-700-B: Display only
4.	Installation Materials and Spare Parts			1 set
Option
1.	Antenna Mounting Base	4.	Flush Mount Kit for Display Unit
	Pipe mount: CP20-01111		for NX-700-A: OP08-19
	Deck mount: 13-QA330		for NX-700-B: OP08-20
	Handrail mount 13-RC5160	5.	Power Supply Unit PR-240-CE
	Offset bracket: 13-QA310	6.	Thermal Paper for NX-700-A

2.Cable for Antenna 3D2V,10/20/30/40/50 m; RG10U, 30/40/50 m

3.Cable for Display Unit

D-Sub 25P to D-Sub 25P, 5/10/15 m

Dual-channel NAVTEX Receiver

Message display with printer

INTERCONNECTION DIAGRAM

Display Unit	Antenna Unit
	NX-7H
NX-700-A	NX-700-B
(Display with printer)	(Display only)

or

3 m,

5/10/15 m (option)

10/20/30/40/50 m

Receiver Unit

NX-7001	2.0 kg 4.4 lb
2- 6	210 8.3"
205 8.1"	235	9.3"
		75 3.0"

R3

0.3"	6	0.2"210	8.3"
8

Display Unit

NX-700-A (Display with printer) 3.3 kg 7.3 lb

Antenna Unit

NX-7H0.6 kg 1.3 lb

116 4.6''

156 6.1"

Message display unit

Receiver Unit	SAR Alert
	100 m max.
NX-7001
	IEC61162-2
	100 m max.
	IEC61162-2
	100 m max.
	RS-232C*
	15 m max.

Power Supply

Unit PR-240-CE

Alarm system

INS

Printer

270	10.6"	120	4.7"
	6.1"	7.0"
	156	177
		51 2.0"
		30˚

NX-700-B (Display only) 0.7 kg 1.5 lb

	183	7.2"	93	3.7"
			56	2.2"
	149	5.9"	31	25
			1.2"	1.0"
6.5"	5.9"		6.7"

			284	11.2"
6.6"	1. 2"
	30		6.1"
168	7	0.3"	156		7	0.3"
				275	10.8"
		155 6.1''
	6.1''			5.7''

		*NX-700-B only
12-24 VDC	100/110/115/	Option or
		locally supply
	200/220/230 VAC

166	149	170
		30˚

155	144
	156 6.1''

FURUNO U.S.A., INC.	FURUNO ESPAÑA S.A.	FURUNO SVERIGE AB
Camas, Washington, U.S.A.	Madrid, Spain	Västra Frölunda, Sweden
Phone: +1 360-834-9300	Phone: +34 91-725-90-88	Phone: +46 31-7098940
Fax: +1 360-834-9400	Fax: +34 91-725-98-97	Fax: +46 31-497093

FURUNO (UK) LIMITED	FURUNO DANMARK AS	FURUNO FINLAND OY
Denmead, Hampshire, U.K.	Hvidovre, Denmark	Espoo, Finland
Phone: +44 2392-230303	Phone: +45 36 77 45 00	Phone: +358 9 4355 670
Fax: +44 2392-230101	Fax: +45 36 77 45 01	Fax: +358 9 4355 6710

FURUNO FRANCE S.A.	FURUNO NORGE A/S	FURUNO POLSKA Sp. Z o.o.
Bordeaux-Mérignac, France	Ålesund, Norway	Gdynia, Poland
Phone: +33 5 56 13 48 00	Phone: +47 70 102950	Phone: +48 58 669 02 20
Fax: +33 5 56 13 48 01	Fax: +47 70 127021	Fax: +48 58 669 02 21

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