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English

VHF NX2500

14 Technical Specifications

Power supply

DC 12 V +30/-10%

Channel capability

57 international channels

UK: includes M1 (previously 37) and M2

Frequency Resolution

25KHz

Method of frequency generation synthesizer

Dimension

175(W) × 79(H) ×130(D) mm

Weight 1175

grams

14.1

RECEIVER

Multi Channel Receiver

1. The receiver incorporates a dual conversion super-heterodyne design.
2. Tuning frequency range 156.025-163.275MHz
3. IF frequency used:

21.4MHz; 455KHz

4. Maximum useable sensitivity

≤

6dB

e.m.f. of 20dB/SINAD

5. Adjacent Channel selectivity

≥

70dB

6. Spurious Response Rejection

≥

70dB

7. Inter-modulation Rejection

≥

68dB

8. Spurious Emission radiation

2nW

9. Current:

0.9 Amps (Max Audio)

0.3 Amps (STBY)

10. Audio Frequency Response

+1, -3dB of +6dB/octave

De-emphasis

300-3000Hz

11. Hum and Noise

≤

40dB

12. Audio output

3.5W at less than 10% distortion

with 8 Ohm external speaker

2W only internal speaker

Содержание NX2500

Страница 1: ...Installation and Operation Manual English Marine VHF Radio with Navtex and GPS repeater Installation and Operation Manual English NX2500...

Страница 2: ...VHF NX2500 English 1...

Страница 3: ...Squelch Control 13 5 6 Volume Control VOL 13 5 7 Channel 16 16 13 5 8 Channel Selection 14 5 9 HIGH LOW Power Selection H L 14 5 10 Time Out Timer 14 6 RECEIVING A DSC CALL 15 6 1 DISTRESS ALERT 15 6...

Страница 4: ...11 3 Message Select 35 11 4 Clear all Messages 35 11 5 Clear Selected Messages 36 11 6 Clear Selected Messages 36 12 EXPANSION CHANNELS 37 13 ATIS FUNCTION 37 14 Technical Specifications 38 14 1 RECE...

Страница 5: ...ate government agency for a Ship Radiotelephone license This license includes the call sign which is your craft s identification for radio purposes 1 3 2 Operator s license A restricted Radiotelephone...

Страница 6: ...pansion channels The NX2500 supports the latest GMDSS requirement for non SOLAS vessels from the International Maritime Organization IMO When connected with a GPS it will display the position and Univ...

Страница 7: ...CONTIOL MODE SELECTION KEY VOL 6 FUNCTION SELECT KEY F This key is an aggregation of DUAL WATCH FULL SCAN MEMORY SCAN and TAG CHANNEL function To access these function by press F key and press again t...

Страница 8: ...under a spring loaded cover that must be lifted before the button can be pressed 13 FIST MICROPHONE CONTROLLER CORD 3 2 Back panel 1 POWER CORD 2 GPS Navtex and EXT SP socket 3 ANTENNA 4 Ventilation...

Страница 9: ...nnel D Indicates the displayed channel is a duplex channel GROUP 4 I Indicates the international channels are selected K Indicates the international channels UK M1 and M2 channels are selected U Indic...

Страница 10: ...keypad ITU 0 9 A Z is used for entering numeric data When required the keys will automatically switch to character mode allowing letters numbers and punctuation marks to be entered Repeatedly pressing...

Страница 11: ...or or to select through the call log KEY Use to select working channel Up or Down Can also be used to select stored working channels Allows viewing of next or previous message and selection next or pr...

Страница 12: ...n the front panel once to enter the Function Selection mode The FUNCTION SELECTION screen will be displayed as below Press the or key to move the cursor to the required function DUAL WATCH FULL SCAN M...

Страница 13: ...hen in Full Scan mode FS will appear on the bottom line of LCD Note that the Radio will not transmit nor will alternative channels be able to be selected while in Full Scan mode To restore normal oper...

Страница 14: ...until the background interference noise disappears To receive weaker signals press key to decrease the squelch 5 6 Volume Control VOL Press the VOL key on the front panel the volume control screen wi...

Страница 15: ...r Lo indicator will appear on bottom of LCD 5 10 Time Out Timer A time out timer is provided to prevent continuous transmissions for periods greater than 5 minutes In the event that the radio will be...

Страница 16: ...ey to transmit the response call the radio will jump to the working channel waiting for the call Press the CLR key to cancel the B B sound and then return to the main interface 6 3 SAFETY URGENCY CALL...

Страница 17: ...16 6 4 GROUP CALL When receiving the GROUP CALL the receiver will give off the B B sound and display as follows The radio will jump to the working channel waiting for the call press the ENT key to ca...

Страница 18: ...danger the danger categories of the ship in dangerous orientation and time press the CLR key to cancel the alarm then return to the main interface 6 6 SEA CALL When receiving the SEA CALL the radio wi...

Страница 19: ...hort press on the DIST button and then select the nature of distress with or Then press and hold DIST for 5 sec 7 2 ROUTINE CALL Press the CALL key on the hand controller choose the ROUTINE CALL Input...

Страница 20: ...se the INDIVIDUAL you need to input the receiver s MMSI code then press the or to move the cursor _ to the NO line input the working channel number then press the ENT key then press the ENT key again...

Страница 21: ...nnel number then press the ENT key then press the ENT key again to confirm the transmitting after receiving the receiver s response the radio will jump to the working channel automatically Press the C...

Страница 22: ...hich want to be transmitted press the ENT key to confirm transmitting this DISTRESS ALARM Press the or to choose if you want to transmit to ALL SHIP or INDIVIDUAL If you choose INDIVIDUAL you need to...

Страница 23: ...reen to front of LOG VIEW then press ENT key to confirm the LOG REVIEW screen will appear on the display as follows 8 1 Review Routine Log The routine log can be used to look back through the last 20...

Страница 24: ...2 Review distress logs The distress log can be used to look back through the previous 20 distress calls that have been received the most recent call first Press MENU key on the fist microphone control...

Страница 25: ...function can not be used and every time when the NX2500 is switched on it will be asked to enter the MMSI number Switch on the unit then press numeric key on the fist microphone controller to enter t...

Страница 26: ...select the MMSI screen as below Press CLR key to go back to the main screen To change the MMSI number after it has been programmed the unit must be returned to an authorized dealer to erase the exist...

Страница 27: ...ally Press MENU key to select the POSITION UTC screen as below Use the numeric key to enter the required data then press ENT key to accept the position and time entered To toggle between N S and E W u...

Страница 28: ...ry press or to move the cursor in front of ADD then press ENT key to enter DIRECTORY ADD screen as below Use the keypad to move backwards and forwards along the line to enter a name Then move the curs...

Страница 29: ...he keypad to edit the data Press ENT to store the modified entry To delete an entry press or key to move the cursor in front of DEL then press ENT key to enter DIRECTORY DEL screen as below Use the or...

Страница 30: ...en Then press to adjust the brightness of backlight There are 5 levels of brightness Press ENT for confirmation exit 10 2 Contrast adjustment Using on the fist microphone controller to select CONTRAST...

Страница 31: ...elect enable or disable the BEEP sound function on pressing any key and notifying sound of NAVTEX message received Press ENT for confirmation and exit 10 5 Navtex Only Mode If you want to switch of yo...

Страница 32: ...e And Time Press or key to move the cursor on the RADIO SETTING screen to the front of DATE TIME then press ENT key the SET DATE TIME screen will appear Use the numeric keys to enter numbers then pres...

Страница 33: ...om some remote stations you can also ignore some types of messages Under Navtex MSG SETTING you can read yur messages select massages and stations you want to monitor clear all or selected messages Pr...

Страница 34: ...all messages from the stations marked IGNORE Select NAVTEX MSG SETTING with or and press ENT Goto STATION SELECT with or and confirm with ENT Select which Station you want to ignore with or and toggle...

Страница 35: ...18 Q Malin Head 518 G Tarifa 518 L R galand 518 METAREA III S Hamburg 518 Western Mediterranean L Hamburg 490 X Cabo la Na 518 T Oostende 518 W la Garde 518 P Ijmuiden 518 S la Garde 490 Northern N At...

Страница 36: ...onal warnings J Satnav messages B Meteorological warnings K Other electronic navaid messages C Ice reports L Additional navigational messages D Search and rescue information V Special services E Meteo...

Страница 37: ...t message with or confirm with ENT then confirm with ENT or cancel with CLR 11 6 Clear Selected Messages If you want to Check the Latitude and Longitude of the Waypoint you are stearing towards press...

Страница 38: ...tomatic Transmitter Identification System ATIS used in some countries NX2500 can work on ATIS band by a licence If you have an ATIS licence NX2500 can work on ATIS channels Contact your dealer Nationa...

Страница 39: ...l conversion super heterodyne design 2 Tuning frequency range 156 025 163 275MHz 3 IF frequency used 21 4MHz 455KHz 4 Maximum useable sensitivity 6dB e m f of 20dB SINAD 5 Adjacent Channel selectivity...

Страница 40: ...ion 2nW 9KHz to 2GHz 14 3 TRANSMITTER 1 Type of emission 16K0F3E Voice 13K5G2B DSC 2 Frequency range 156 025 161 425MHz 3 Output power 25W 1W into 50 Ohms 4 Audio Harmonic Distortion 10 5 Audio Freque...

Страница 41: ...250 161 850 D Public Correspondence 26 157 300 161 900 D Port Operation VTS 27 157 350 161 950 D Public Correspondence Port Operation 28 157 400 162 000 D Public Correspondence Port Operation 60 156 0...

Страница 42: ...tronic The fins on the back of the case act as a heat sink to dissipate heat generated by the set when in use which maintains the high efficiency of the radio The free circulation of air is essential...

Страница 43: ...rth connection for voltage and RF interface protection The red wire is positive and black is negative If polarity is accidentally reversed the set will not operate The antenna is connected to the NX25...

Страница 44: ...mast at extreme range where concentrating the available power into a narrow horizontal beam becomes more important However if the antenna is not vertical when transmitting the beam will be angled eit...

Страница 45: ...Washer 4 2 Microphone Hanger 1 9 Hanger Spring washer 2 3 Bracket Knob Washers 2 10 GPS NAVTEX Speaker 4 Mounting Bracket Knobs 2 plug cord 1 5 Mounting Bracket Screws 4 11 Thermoshrink Tube 4 6 Mic H...

Страница 46: ...VHF NX2500 English 45 18 WARRANTY...

Страница 47: ...English VHF NX2500 46...

Страница 48: ...VHF NX2500 English 47...

Страница 49: ...English VHF NX2500 48 19 DECLARATION OF CONFORMITY...

Страница 50: ...VHF NX2500 English 49...

Страница 51: ...English VHF NX2500 50...

Страница 52: ...VHF NX2500 English 51 Copyright Nexus Marine AB Kuskv gen 4 191 62 Sollentuna Sweden Tel 46 0 8 506 939 00 Fax 46 0 8 506 939 01 www nexusmarine se 28321 1 Edition 1 2 For NX2500 version 2 0...

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