Navman MCB 7270 Operation Manual Download | Manualshive

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MCB 7270

Full-Featured Marine CB 27 MHz Radio

Operation Manual

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Summary of Contents for MCB 7270

Page 1: ...NAVMAN w w w n a v m a n c o m MCB 7270 Full Featured Marine CB 27 MHz Radio Operation Manual ...

Page 2: ...ndards AS4355 and AS4367 It generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determine...

Page 3: ... 11 2 3 4 Noise Rejection Selection Screens 11 2 3 5 Battery Voltage Screens 11 2 3 6 Priority Channel Screens Australia 12 2 3 7 ALL SCAN Mode Screens 12 2 3 8 Locked Out and Unlocked Channel Screens 12 2 3 9 Store Favourite Channels Screens 13 2 3 10 PSCAN Working Channel Screen 13 2 3 11 PSCAN Favourite Channel Screen 13 Appendix A Technical Speciﬁcations 14 Appendix B Troubleshooting 15 Append...

Page 4: ...d Extension cable with jack for connection to an external speaker Top centred PTT button for comfortable left or right handed use Quick access keys on the microphone for easy selection of channels priority channels 88 9 local mode LOC and favourite channel functions 3CH Channel 88 9 Priority Distress key on the radio unit and microphone Special 3CH key for easy selection of your three favourite ch...

Page 5: ...ess Calling channel is selected BAT Voltage shown in big digits of the battery supplying the radio If the battery voltage falls below 10 8V BAT will ﬂash continuously and the radio will sound a warning beep LOC Local mode for 10 12dB reduced receiver sensitivity REJ Noise rejection is on CB Citizen Band land radio band frequencies are selected MB Marine Band marine radio band frequencies are selec...

Page 6: ...y Function VOL PWR Volume and Power knob Turn clockwise right to turn the radio on Continue to turn until a comfortable volume is reached VOL PWR also adjusts the settings of an external speaker if connected The screen displays the most recent channel channel band and noise rejection setting See Section 2 3 1 for an example Turn fully anti clockwise left until the knob clicks to turn the radio oﬀ ...

Page 7: ...tore a favourite channel for the ﬁrst time select the channel band then the channel Press and hold 3CH for at least 1 5 seconds to store it in the CH1 location Repeat the procedure to store two more favourite channels in the CH2 and CH3 locations respectively See Section 2 3 9 for an example NOTE If you try and add another favourite channel with 3 already stored FL shows in the display You may sto...

Page 8: ...hown on the screen in big digits Press or repeatedly to step through the available channels one at a time or hold down to scroll rapidly through the available channels at about 7 channels per second See Appendix C for channel band frequencies REJ Noise Rejection Press REJ to activate the noise blanker circuit and reduce noise e g from the engine spark plugs or alternator The screen shows REJ to in...

Page 9: ...ur scan settings 1 Turn the radio oﬀ with VOL PWR 2 Press and hold both SCAN and SKIP while you turn the radio on with VOL PWR The screen shows CL and the radio resets to the factory defaults The following sections show typical screens and explain each example 2 3 1 Power Up Sequence Screens The left hand screen shows the startup screen that appears for 1 5 seconds after the radio is powered up Th...

Page 10: ...ircuit is on and noise reduction is active The right hand screen does not show REJ meaning that the noise blanker circuit is oﬀ Noise rejection on Noise Rejection Oﬀ 2 3 5 BatteryVoltage Screens The battery voltage BAT is shown in big digits over two screens In this example a battery voltage of 12 60V is displayed The ﬁrst screen displays the battery symbol BAT and the whole volts 12 reading for o...

Page 11: ... MB channel band Noise rejection mode REJ and local mode LOC are selected The right hand screen shows the radio stopped in ALL SCAN mode SCAN to receive Rx on Channel 98 at the signal strength shown The radio remains on this channel for 4 seconds and then resumes scanning unless you press SCAN to cancel the ALL SCAN mode and remain on that channel ALL SCAN mode Receiving in ALL SCAN mode 2 3 8 Loc...

Page 12: ...ite CH 1 Favourite CH 2 Favourite CH 3 2 3 10 PSCANWorking Channel Screen The screen shows the radio in PSCAN mode set to scan SCAN one working channel on the marine MB channel band while automatically checking the priority channel once every 4 seconds just like Dual Watch mode Noise rejection mode REJ and local mode LOC are selected 2 3 11 PSCAN Favourite Channel Screen The screen shows the radio...

Page 13: ...e with covered jack Fused DC power cable with quick disconnect terminals Reverse polarity protection TRANSMITTER RF output power at 12 6V DC 4W maximum legal power Modulator mode AM A3E Modulation sensitivity 60 modulation 1 Pascal microphone Hum Noise Better than 10 60 modulation Current drain 2 0 amps full modulation Spurious Harmonic Suppression Better than 65dB RECEIVER Dual Conversion Superhe...

Page 14: ...ction 2 1 It should be at least 10 8V DC b Check the alternator on the vessel 6 Poor reception or excessive noise interfering with the radio signal The radio sensitivity and noise elimination capabilities may need adjusting Section 2 1 provides basic information on adjusting squelch SQL knob noise rejection REJ key and local and normal sensitivity LOC key However if you continue to have problems t...

Page 15: ...x C Radio Channels CHANNEL FREQUENCY MHz TRAFFIC TYPE SHIP TO SHIP SHIP TO SHORE AUSTRALIA 68 27 680 Commercial Charter Calling and working Yes Yes 72 27 720 Professional ﬁshing Calling and working Yes Yes 82 27 820 Professional ﬁshing Calling and working Yes Yes 86 27 860 DISTRESS safety and calling Supplementary to 27 880 Yes Yes 88 27 880 DISTRESS safety and calling Yes Yes 90 27 900 Non commer...

Page 16: ...12 27 105 13 27 115 14 27 125 15 27 135 16 27 155 see Note 1 17 27 165 18 27 175 19 27 185 20 27 205 21 27 215 22 27 225 23 27 255 24 27 235 25 27 245 26 27 265 27 27 275 28 27 285 29 27 295 30 27 305 31 27 315 32 27 325 33 27 335 34 27 345 35 27 355 36 27 365 37 27 375 38 27 385 39 27 395 40 27 405 Note 1 Do not transmit on CH16 CH16 should be used only for a listening watch because it is reserve...

Page 17: ...pines RIQ PTE Ltd Blk 3007 81 Ubi Road 1 02 440 Singapore 408701 Ph 65 6741 3723 Fax 65 6741 3746 e mail riq postone com Taiwan Seafirst International Corporation No 281 Hou An Road Chien Chen Dist Kaohsiung Taiwan R O C Ph 886 7 831 2688 Fax 886 7 831 5001 e mail seafirst seed net tw web www seafirst com tw Thailand Thong Electronics Thailand Co Ltd 923 588 Ta Prong Road Mahachai Muang Samutsakho...

Page 18: ...Lon 174 44 535 E Lat 36 48 404 S Designed in New Zealand Made in China MN000313A NAVMAN MC B 7270 N13408 ...

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