Navman MCB 7270 Marine Radio User Manual
Contents
1. 7270 Full Featured Marine CB 27 MHz Radio gt gt Operation Manual com NAVMAN 9 gt 9 ES ES ES RF Emissions and Installation Notice This equipment has passed Australian Type Certification Standards 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 determined by turning the equipment off and on the user is encouraged to try and correct the interference by one or more of the following measures reorient or relocate the receiving antenna increase the separation between the equipment and receiver connect the equipment into an outlet on a circuit different from that to which the receiver is connected consult the dealer or an experienced radio TV technician for help ACA Maritime Licensing Statement for both 27 MHz and VHF 1 Aperson must not operate as a maritime ship station on land 2 Aperson operating a maritime ship station must use a form of identification at the start of each transmission or series of transmissions that clearly identifies the station 3 Referto the following Internet Website for more information2. Squelch or Threshold Level knob Sets the threshold level for the minimum receiver signal Turn fully anti clockwise left until random noise is heard then turn slowly clockwise right until the random noise disappears Make another turn clockwise for best reception in open sea conditions In areas of high noise eg close to large cities reception may improve if sensitivity is reduced by turning SQL slowly clockwise right Also see REJ noise rejection and LOC Local mode because these may also improve reception quality Priority Channel Australia Also on the microphone Press to cancel all other modes and tune into the priority channel CH88 if MB is selected or CH9 if CB is selected See Section 2 3 6 for an example Press 88 9 again to return to your original channel In countries other than Australia consult your dealer about your local priority channels Channel Band Press to toggle between marine MB and land CB channel band frequencies The screen shows the selected channel band and radio tunes to the most recently used channel in that channel band See Section 2 3 2 for an example Appendix C shows the frequencies for each channel band Three Favourite Channels Also on the microphone You can store three favourite channels for marine MB and another three favourites for land CB channel band frequencies To store a favourite channel for the first time select the channel band then the channel Press and ho
3. m m m m E E SIGNAL m m E E Noise rejection on Noise Rejection Off 2 3 5 Battery Voltage 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 one second After one second the next screen appears showing BAT and the partial volts 60 reading for one second This cycle is repeated twice LILI BAT BAT SIGNAL SIGNAL Whole volts Partial volts note the decimal point 11 NAVMAN MCB 7270 Marine CB 27 MHz Radio Operation Manual 2 3 6 Priority Channel Screens Australia The left hand screen shows the radio receiving Rx on the marine MB channel band priority PRI channel 88 The signal strength is at maximum noise rejection mode REJ and local mode LOC are selected The right hand screen shows the radio receiving on the land CB channel band priority PRI channel Fils mm PRI LOCREJ MB LOCREJCB SIGNAL SIGNAL m m m M E Priority channel 88 Priority channel 09 2 3 7 ALL SCAN Mode Screens The left hand screen shows the radio in ALL SCAN mode SCAN for the marine 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 chann
4. Creak Rd Baniyas Road Dubai Ph 9714 229 1195 Fax 9714 229 1198 e mail sales amitdubai com AFRICA South Africa Pertec Pty Ltd Coastal Division 16 Paarden Eiland Road Paarden Eiland 7405 PO Box 527 Paarden Eiland 7420 Cape Town South Africa Ph 27 21 508 4707 Fax 27 21 508 4888 e mail info kfa co za web www pertec co za EUROPE France Belgium and Switzerland Plastimo International 15 rue Ing nieur Verri re BP435 56325 Lorient Cedex Ph 33 297 87 36 36 Fax 33 2 97 87 36 49 e mail plastimo plastimo fr web www plastimo fr Germany Navimo Deutschland 15 rue Ing nieur Verri re BP435 56325 Lorient Cedex Ph 49 6105 92 10 09 49 6105 92 10 10 49 6105 92 10 12 496105921011 e mail plastimo international plastimo fr website www plastimo de Italy Navimo Italia Nuova Rade spa Via del Pontasso 5 16015 Casella Scrivia GE Ph 39 1096 80162 Fax 39 1096 80150 e mail info nuovarade com web www plastimo it Holland Navimo Holland Industrieweg 4 2871 Schoonhoven Ph 31 182 320 522 Fax 31 182 320 519 e mail info plastimo nl web www plastimo nl United Kingdom Navimo UK Hamilton Business Park Bailey Road Hedge End Southhampton Hants S030 2HE Ph 44 01489 778 850 Fax 44 0870 751 1950 e mail sales plastimo co uk web www plastimo co uk Sweden Denmark Finland and Norway Navimo Nordic Lundenvagen 2 473 21 Henan Ph 46 304 360 60 Fax 4
5. 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 selected SCAN The radio is in scanning mode four scanning modes are available SIGNAL The signal strength of the received channel The bars are always shown when the radio is receiving One bar indicates a very weak signal eight bars indicates a very strong signal Note that the signal strength is not shown for transmissions 6 NAVMAN MCB 7270 Marine CB 27 MHz Radio Operation Manual 2 Basic Operation 2 1 Key Functions K i d fa eat Jr i Maam m Note that some of the keys on the radio chassis are duplicated on the microphone for your convenience The PTT button and the LOC button are available only on the microphone LILI Key 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 7 NAVMAN MCB 7270 Marine CB 27 MHz Radio Operation Manual SQL 88 9 BAND 3CH DIM SCAN
6. 18 15 Janglim1 Dong Saha Gu Busan Korea Ph 82 51 293 8589 Fax 8251 265 8984 e mail info kumhomarine com web www kumhomarine com Maldives Maizan Electronics Pte Ltd Henveyru 08 Sosunmagu Male Maldives Mobile 960 78 24 44 Ph 960323211 Fax 960 3257 07 e mail ahmed maizan com mv Singapore and Malaysia Brunei Indonesia and Phillipines RIQ PTE Ltd Blk 3007 81 Ubi Road 1 02 440 Singapore 408701 Ph 65 6741 3723 Fax 65 6741 3746 e mail rigq 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 8867 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 Samutsakhon 74000 Thailand Ph 6634 411919 Fax 66 34 422919 e mail sales thongelectronics com admins thongelectronics com web www thongelectronics com Vietnam HaiDang Co Ltd 763 Le Hong Phong St Ward 12 District 10 Hochiminh City Vietnam Ph 848 863 2159 84 8 863 2524 e mail haidang co hcm vnn vn web www haidangvn com MIDDLE EAST Lebanon and Syria Balco Stores Balco Building Moutran Street Tripoli via Beirut Lebanon Box 622 Ph 961 6 624512 Fax 961 6 628 211 e mail balco cyberia net Ib United Arab Emirates Kuwait Oman Iran Saudi Arabia Bahrain and Qatar Abdullah Moh d Ibrahim Trading opp
7. 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 17 NAVMAN MCB 7270 Marine CB 27 MHz Radio Operation Manual Appendix D How NORTH AMERICA BNT Marine Electronics 30 Sudbury Rd Acton MA 01720 Toll Free 1866 628 6261 Fax 1978 897 8264 e mail sales navmanusa com web www navman com OCEANIA Australia Navman Australia Pty Limited Suite 2 408 Victoria Road Gladesville NSW 2111 Australia 61 2 9879 9000 61 2 9879 9001 e mail sales navman com au Web www navman com New Zealand Absolute Marine Ltd Unit B 138 Harris Road East Tamaki Auckland 649 273 9273 64 9 273 9099 e mail navman absolutemarine co nz Papua New Guinea Lohberger Engineering Lawes Road Konedobu PO Box 810 Port Moresby Ph 675 321 2122 Fax 675 321 2704 loheng online net pg web www lohberger com pg LATIN AMERICA Argentina Costanera Uno S A Av Pte Ramon S Castillo y Calle 13 Zip 1425 Buenos Aires Argentina Ph 5411 4312 4545 Fax 5411 4312 5258 e mail purchase costanerauno com ar web www costanerauno ar Brazil Equinautic Com Imp Exp de Equip Nauticos Ltda Rua Ernesto Paiva 139 Clube dos Jangadeiros Porto Alegre RS Brasil CEP 91900 200 Ph 55 51 3268 6675 55 51 3269 2975 Fax 55 51 3268 1034 e mail equinautic equinautic com br web www equinautic com br Realmarine Estrada do Joa 3862 Barra da Tijuca Rio de Janeiro Bra
8. 6 304 307 43 e mail info plastimo se web www plastimo se Spain Navimo Espa a Poligono Industrial de Cabrera Plaza Industria S N 08349 Cabrera de Mar Barcelona Ph 34 93 750 75 04 Fax 3493 750 75 34 e mail plastimo plastimo es web www plastimo es Portugal Navimo Portugal Avenida de India N 40 1300 299 Lisbon Ph 351 21 362 04 57 Fax 351 21 362 29 08 e mail plastimo siroco nautica pt web www plastimo com Other countries in Europe Plastimo International 15 rue Ing nieur Verri re BP435 56325 Lorient Cedex France Ph 33 297 87 36 59 Fax 33 297 87 36 29 e mail plastimo international plastimo fr web www plastimo com HEADQUARTERS Navman NZ Limited 13 17 Kawana St Northcote P O 68 155 Newton Auckland New Zealand Ph 649 481 0500 Fax 649 481 0590 e mail marine sales navman com web www navman com NAVMAN MCB 7270 Marine CB 27 MHz Radio Operation Manual Lon 174 44 535 E Designed in New Zealand Made in China MN000313A Lat 36 48 404 S N a
9. 7 680 Commercial amp Charter Calling and Yes Yes working 72 27 720 Professional fishing Calling and Yes Yes working 82 27 820 Professional fishing Calling and Yes Yes working 86 27 860 DISTRESS safety and calling Yes Yes Supplementary to 27 880 88 27 880 DISTRESS safety and calling Yes Yes 90 27 900 Non commercial clubs amp groups only No Yes Calling and working 91 27 910 Non commercial clubs amp groups only No Yes Calling and working 94 27 940 Non commercial club events Calling Yes Yes and working 96 27 960 Non commercial organisations Calling Yes No and working 98 27 980 Recognised Rescue Organisations eg Yes Yes Surf Rescue Calling and working 16 NAVMAN MCB 7270 Marine 27 MHz Radio Operation Manual C 2 LAND CB FREQUENCIES Note 1 Do not transmit on CH16 CH16 should be used only for a listening watch because it is reserved for transmissions that use SSB not AM CB CHANNEL FREQUENCY MHz AUSTRALIA 1 26 965 2 26 975 3 26 985 4 27 005 5 27 015 6 27 025 7 27 035 8 27 055 9 27 065 10 27 075 11 27 085 Calling 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
10. Screens Australia ALL SCAN Mode Screens Locked Out and Unlocked Channel Screens Store Favourite Channels Screens PSCAN Working Channel Screen PSCAN Favourite Channel Screen Appendix A Technical Specifications Appendix B Troubleshooting Appendix C Radio Channels Australia C2 MARINE MB FREQUENCIES LAND CB FREQUENCIES Appendix D How to Contact Us NAVMAN MCB 7270 Marine 27 MHz Radio Operation Manual 1 General Information Congratulations on your purchase and installation of a Navman MCB 7270 27 2 radio It provides you with the following useful features Marine band MB communications with a land band CB capability with six favourite channels three for each band Large LCD screen with prominent 17mm high channel display Special size highlighted symbols for Tx transmission Rx reception and X Channel Lockout Powerful transmission output 4W maximum legal Adjustable brightness settings for the screen and keypad for easy use in all lighting conditions including night time and bright sunlight Adjustable backlighting for the microphone Long cable for the microphone 2 3m when comfortably stretched 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 chan
11. The current channel is shown 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 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 indicate that the noise blanker circuit is on See Section 2 3 4 for an example Local Mode Microphone only Press to select Local mode This reduces the receiver sensitivity and noise The screen shows LOC to indicate that Local mode is active Local mode can be useful in areas of high radio noise for example close to cities Local mode is not recommended for use in open sea conditions Press LOC again to return to normal sensitivity Battery Readout Press BAT to display the voltage of the battery supplying the radio in big digits on the screen e g 12 6V is displayed as 12 then after 1 second the display changes to 60 This cycle is repeated twice then the radio returns you to the most recent mode See Section 2 3 5 for an example Lockout a Channel You can use this only in ALL SCAN mode if desired to skip over a channel that is always busy When the busy channel is displayed on the screen press SKIP to lock it out The X symbol appears on the screen for one second by the channel number then scanning re
12. ed up The startup screen is followed by a screen that shows the software version and then the most recent settings In this example the radio tunes to channel 86 in the marine MB channel band The radio is receiving Rx at maximum signal strength a Rx PRI LIL I LOCREJ MB MB SIGNAL m m SIGNAL ma m m m M E Startup screen Most recent settings 2 3 2 Channel Band Selection Screens The left hand screen shows the radio set to receive Rx on the land CB channel band The radio tunes to the most recently used channel Noise rejection REJ is on and the signal strength is shown SIGNAL The right hand screen shows the radio receiving on CH 86 in the marine MB channel band 10 NAVMAN MCB 7270 Marine CB 27 MHz Radio Operation Manual ric Ia HD REJCB REJ MB SIGNAL mm SIGNAL mm CB channel band MB channel band 2 3 3 Transmission Screen The screen shows a 4W transmission Tx being made on marine MB channel band priority channel 88 PRI The signal strength is not shown for transmissions LII SIGNAL 2 3 4 Noise Rejection Selection Screens The left hand screen displays the REJ symbol indicating that the noise blanker circuit is on and noise reduction is active The right hand screen does not show REJ meaning that the noise blanker circuit is off Lf amn REJCB cB SIGNAL
13. el for 4 seconds and then resumes scanning unless you press SCAN to cancel the ALL SCAN mode and remain on that channel Oc mm E LOCREJ MBSCAN SIGNAL SIGNAL mmm ALL SCAN mode Receiving in ALL SCAN mode 2 3 8 Locked Out and Unlocked Channel Screens The left hand screen shows the radio in normal mode when a locked out channel has been selected The X symbol appears next to the channel number to show that the channel is locked out To unlock the channel just press SKIP and the X symbol disappears right hand screen BE Ole HH LOCREJ MB LOCREJ MB SIGNAL E SIGNAL E Locked Out Normal Unlocked Normal 12 NAVMAN MCB 7270 Marine 27 MHz Radio Operation Manual 2 3 9 Store Favourite Channels Screens The screens show three favourite channels being stored on the marine MB channel band Channel 72 is favourite channel 1 CH 1 channel 82 is favourite channel 2 CH 2 and channel 86 is favourite channel 3 CH 3 Three favourite channels can also be set for the land CB channel banks giving a total of six stored favourite channels E CH Ht Li CH SIGNAL d SIGNAL SIGNAL i Favourite CH 1 Favourite CH 2 Favourite CH 3 2 3 10 PSCAN Working 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 Watc
14. h mode Noise rejection mode REJ and local mode LOC are selected BH MBSCAN SIGNAL 2 3 11 PSCAN Favourite Channel Screen The screen shows the radio in PSCAN mode set to scan SCAN favourite channel 1 CH 1 on the marine MB channel band while automatically checking the priority channel once every 4 seconds just like Dual Watch mode rU igi m LIE PRI unl MB SCAN MBSCAN MBSCAN SIGNAL SIGNAL Scan CH 1 Scan priority channel Return to CH 1 13 NAVMAN MCB 7270 Marine CB 27 MHz Radio Operation Manual Appendix A Technical Specifications GENERAL Compliance Frequency range Frequency stability Phase locked loop Dual Watch Favourite 3 Channel Scan All Scan CH88 9 Recall LCD display viewing area LCD and microphone keys backlit Backlighting control Dimensions without trunnion Weight with microphone Waterproof level Built in MCU Processor Built in Speech Processor circuitry Last Channel memory 50 239 Annenna connector Input voltage Operating temperature range Extension speaker cable with covered jack AS4355 and AS4367 26 965 27 980 MHz 001 30 x 25 mm black on silver 4 levels OFF LOW MED HIGH 162 x 75 157mm 1 2kg JIS 7 500 10 8 to 16 3V DC 0 C to 55 C Fused DC power cable with quick disconnect terminals Reverse polarity protection TRANSMITTER RF output power at 12 6V DC Modulator mode Modulation sensi
15. http www scaleplus law gov au html instruments 0 25 pdf 2004052602 pdf It is the owner s sole responsibility to install and use the instrument in such a manner that will not cause accidents personal injury or property damage Navman NZ Limited disclaims all liability for any use of this product in a way that may cause accidents damage or that may violate the law Governing Language This statement any instruction manuals user guides and other information relating to the product Documentation may be translated to or has been translated from another language Translation In the event of any conflict between any Translation of Documentation the English language version of the Documentation will be the official version of the Documentation This manual represents the Navman MCB 7270 radio at the time of printing Navman NZ Limited reserves the right to make changes to specifications without notice Copyright Navman NZ Limited New Zealand All rights reserved NAVMAN is a registered trademark of Navman NZ Limited 1 General Information 11 1 2 FEATURES SCREEN SYMBOLS AND MEANINGS 2 Basic Operation 2 1 2 2 2 3 2 3 1 2 3 2 2 3 3 2 3 4 2 3 5 2 3 6 2 3 7 2 3 8 2 3 9 2 3 10 2 3 11 KEY FUNCTIONS RESET TO FACTORY DEFAULTS EXAMPLE SCREENS Power Up Sequence Screens Channel Band Selection Screens Transmission Screen Noise Rejection Selection Screens Battery Voltage Screens Priority Channel
16. ld 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 store a new CH3 frequency only after deleting the old one CH1 and CH2 remain unless you delete them To select a favourite channel select the channel band then press 3CH to toggle between your favourite channels The channel band and CH1 CH2 or CH3 are displayed to show which favourite channel is currently selected To delete a favourite channel select it then press and hold 3CH for at least 1 5 seconds until the CH1 CH2 or CH3 symbol disppears off the screen Backlighting Press repeatedly to step through the settings OFF LOW MED HIGH until the desired backlight level is obtained Scanning Mode PSCAN and ALL SCAN modes are available on both land CB and marine MB channel bands To scan one channel select that channel then immediately press and release SCAN The radio goes into PSCAN mode scanning the selected channel and automatically checking the priority channel once every 4 seconds like Dual Watch mode To scan one favourite channel select that channel with 3CH then immediately press and release SCAN The radio goes into PSCAN mode scanning the favourite channel and automatically checking the priority channel o
17. nce every 4 seconds like Dual Watch mode See section 2 3 11 for an example NAVMAN MCB 7270 Marine 27 MHz Radio Operation Manual CH REJ LOC BAT SKIP To scan all three favourite channels press 3CH then immediately press and hold SCAN for at least 1 5 seconds The radio goes into PSCAN mode automatically scanning the three favourite channels and the priority channel once every 4 seconds The screen shows the SCAN symbol channel band and the channel being scanned To scan all channels within a channel band select a channel that is not a favourite then press and hold SCAN for at least 1 5 seconds The radio goes into ALL SCAN mode automatically scanning about 7 channels per second and the priority channel once every 4 seconds See Section 2 3 7 for an example To lock out an always busy channel when in ALL SCAN mode press SKIP when the radio stops at that channel An X appears for one second on the screen to indicate a locked out channel and then scanning resumes Note that it is not possible to skip over the priority channel See Section 2 3 8 for an example When a signal is received in either PSCAN or ALL SCAN mode scanning stops at that channel The screen shows Rx and the signal strength If the signal ceases for more than 4 seconds the scan restarts To cancel scanning press SCAN again Note that pressing 88 9 the priority channel also cancels scanning Channel Select Also on the microphone
18. nel functions 3CH Channel 88 9 Priority Distress key on the radio unit and microphone Special 3CH key for easy selection of your three favourite channels Most recently used channel is remembered and displayed at power up PSCAN facility to scan the working channel and the priority channel or the favourite channel s and the priority channel similar to a dual watch facility ALL SCAN mode with busy channel lockout facility Noise rejection can be activated from chassis or microphone Powerful external speaker up to 4W Voltage indicator and low battery warning for the battery supplying the radio Waterproof and submersible to comply with JIS 7 Meets AS4355 and AS4367 technical specifications NAVMAN MCB 7270 Marine CB 27 MHz Radio Operation Manual 1 2 Screen Symbols and Meanings This simulation shows the location of all the symbols that may appear on the screen SIGNAL Cen Symbol Meaning X Channel is locked out in ALL SCAN mode only 88 Channel selected big digits Tx Transmitting on maximum power PTT depressed Rx The signal of the tuned channel is greater than the squelch setting and the audio is not muted CH 123 Shows which of the three favourite channels if any are selected Otherwise blank PRI Priority Distress 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
19. sumes See Section 2 3 8 for an example You can lock out a maximum of 5 channels and the radio will remember them at startup NAVMAN MCB 7270 Marine CB 27 MHz Radio Operation Manual If you are not in scanning mode and select a locked out channel X is displayed by the channel number on the screen See Section 2 3 8 for an example To unlock a channel press SCAN to exit from any scanning mode if necessary select the locked out channel and then press SKIP The X symbol disappears to show the channel is no longer locked out See Section 2 3 8 for an example PTT Press To Talk Microphone only Press PTT to transmit at any time on an allowable channel This automatically stops scanning See Section 2 3 3 for an example You must release PTT to receive a signal If it sticks a built in timer will automatically shut down a transmission after five minutes and sound the error beeps 2 2 Reset to Factory Defaults Use this to delete all your favourite channel settings all your locked channels and all your 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 LL 2 3 Sample Screens 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 power
20. tivity Hum amp Noise Current drain Spurious amp Harmonic Suppression RECEIVER Dual Conversion Superhetrodyne Sensitivity IF frequencies Selectivity Image rejection Intermodulation rejection SQ range Audio output Current drain Spurious emissions Hum amp Noise 4W maximum legal power AM A3E 60 modulation 1 Pascal microphone Better than 10 60 modulation 2 0 amps full modulation Better than 65dB 0 5uV for 12dB SINAD First 10 7MHz Second 450KHz 36dB 6KHz 60dB 10KHz 70dB 60db 20KHz channel specification Tight 10uV Threshold 0 3uV 1W 160 external 4W 40 800mA full volume 350mA squelched 57dBm better than 50dB 1mV input Specifications are subject to change without notice 14 NAVMAN MCB 7270 Marine CB 27 MHz Radio Operation Manual Appendix B Troubleshooting 1 The radio will not power up A fuse may have blown OR there is no power getting to the radio unit a Checkthe power cable for cuts breaks or squashed sections b Ifthe power cable is fine replace the 3 Amp fuse 1 spare fuse is supplied Check the voltage of the battery that supplies the radio see BAT in Section 2 1 It should be at least 10 8V DC 2 The radio unit blows the fuse when the power is switched on The power wires may have been reversed a Check that the red wire is connected to the positive battery terminal and the black wire is connected to the negative ba
21. ttery terminal 3 The speaker makes popping or whining noises when the engine is running Electrical noise may be interfering with the radio unit a Re route the power cables away from the engine b Adda noise suppressor to the power cable c Use resistive spark plug wires and or use an alternator whine filter 4 No sound from the external speaker a Check that the external speaker cable is physically connected b Check the soldering of the external speaker cable 5 BAT flashes continuously and a warning beep sounds The power supply to the radio is too low a Press BAT to check the voltage of the battery that supplies the radio see BAT in Section 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 try the following sequence a Ensure that LOC and REJ are both off not shown on the LCD Turn SQL to about halfway between the minimum and maximum settings b Turn SQL slowly clockwise right to reduce sensitivity If this does not solve the problem turn SQL anticlockwise left to about halfway again and continue to the next step c Press REJ to start noise rejection Turn SQL slowl
22. y clockwise right to reduce sensitivity If this does not solve the problem turn SQL anticlockwise left to about halfway again and continue to the next step Press LOC to switch into Local mode and reduce the radio sensitivity and range Turn SQL slowly clockwise right to reduce sensitivity If this does not solve the problem the CB antenna may need to be moved for optimum performance in situations where the interference source cannot be isolated or eliminated d 7 F1 is displayed when trying to transmit The transmission power supply is too low or too high a Press BAT to check the battery voltage see BAT in Section 2 1 for more information if necessary It should be at least 10 8V DC b Check the alternator on the vessel 15 NAVMAN MCB 7270 Marine CB 27 MHz Radio Operation Manual Appendix C Radio Channels The MCB 7270 radio is a marine band MB radio that includes a land band CB capability The MCB 7270 radio should be installed in a boat and operated from a boat The marine band MB should be used to communicate with other boats and coast guard stations The land band CB should be used from the boat only to communicate with individuals or organisations based on the land If you require a radio only for land based communications use a CB radio C 1 MARINE MB FREQUENCIES CHANNEL FREQUENCY TRAFFIC TYPE SHIPTO SHIPTO MHz SHIP SHORE AUSTRALIA 68 2
23. zil CEP 22611 020 Ph 55 21 2483 9700 Fax 55 21 2495 6823 e mail tito realmarine com br web www realmarine com br Chile Equimar Manuel Rodrigurez 27 Santiago Chile Ph 562 698 0055 Fax 562 698 3765 e mail mmontecinos equimar cl Mera Vennik Colon 1148 Talcahuano 4262798 Chile Ph 45641541752 Fax 56 41 543 489 e mail meravennik entel chile net 18 Mexico Mercury Marine de Mexico Anastacio Bustamente 76 Interior 6 Colonia Francisco Zarabia Zapapan Jalisco C P 45236 Mexico Ph 52 33 3283 1030 Fax 52 33 3283 1034 web www equinautic com br Uruguay Alvaro Bermudez Nautica 11300 Montevideo Uruguay Ph amp Fax 59 82 628 6562 e mail alvaro nautica com uy ASIA China Peaceful Marine Electronics Co Ltd Guangzhou Hong Kong Dalian Qingdao Shanghai 1701 Yanjiang Building 195 Yan Jiang Zhong Rd 510115 Guangzhou China Ph 86 20 3869 8839 Fax 86 20 3869 8780 e mail sales peaceful marine com web www peaceful marine com India Access India Overseas Pvt Ltd A 98 Sector 21 Noida 201 301 India Ph 91 120 244 2697 TeleFax 91 120 253 7881 Mobile 91 98115 04557 e mail vkapil del3 vsnl net in Esmario Export Enterprises Block No F 1 3rd Floor Surya Towers Sardar Patel Rd Secunderbad 500 003 Ph 91 40 2784 5163 Fax 91 40 2784 0595 e mail _gjfeee hd1 vsni net in web www esmario com Korea Kumhomarine Technology Co Ltd 604 842 2F 11
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