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Cobra MRF45 - page 1
A 1 English Our Thanks T o Y ou Introduction VHF MARINE RAD IO M R F 4 5 Owner’ s Manual No thi ng C om es C lo se to a C ob ra ® En gl ish Thank you f or purchasing a CobraMarine ® VHF radio. Properl y used, this Cobra ® product will give y ou many year s of reliable service . How Y our CobraMarine VHF Radio Works This radi o is a VHF trans c ...
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Cobra MRF45 - page 2
P ow er Co nn ec ti on Ex te rn al Sp ea ke r Ja ck Gl ob al P os it io ni ng Sy st em ( GP S) J ac k An te nn a So ck et A3 English Microphon e And Product Features Introduction A2 English T ransceiver Contr ols, Indicators And Connections Introduction Dual Power Selectable to one (1) or 25 watts output power for near or distant calling. USA/Inter ...
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Cobra MRF45 - page 3
Introduction Nothing Comes Close to a Cobra ® T able Of Contents 1 In tro duc ti on O u rT h a n k s T oY o u ...................................................A 1 C u s t o m e rA s s i s t a n c e ................................................. A 1 T ransceiver Controls, Indicators And Connections . . . . . . . . . . . . . . . . . . . . . . . ...
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Cobra MRF45 - page 4
Introduction Nothing Comes Close to a Cobra ® Important Safety Information 3 The following WARNINGS and CAUTIONS will make you aware of RF exposure hazards and how to assure you operate the radio within the FCC RF exposure limits established for it. WARNINGS Y our radio generates electromagnetic RF (radio frequency) energy when it is transmitting. ...
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Cobra MRF45 - page 5
Nothing Comes Close to a Cobra ® FCC Licensing Inf ormation 5 FC C LI CE NS ING I NF OR MA TI ON • CobraMarine VHF radios comply with the FCC (Federal Communication Commission) requirements that regulate the Maritime Radio Service. This CobraMarine radio incorporates a VHF FM transceiver designed for use in the frequency range of 156.025 to 163. ...
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Cobra MRF45 - page 6
Nothing Comes Close to a Cobra ® V oice Calling 7 Limits On Calling Y ou must not call the same station for more than 30 seconds at a time. If you do not get a reply , wait at least two (2) minutes before calling again. After three (3) calling periods, wait at least 15 minutes before calling again. Change Channels After contacting another station ...
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Cobra MRF45 - page 7
Nothing Comes Close to a Cobra ® Maritime Mobile Service Identity (MMSI) 9 VHF Marine Radio Protocols Ma ri ti me M obi le S er vic e Id en ti ty ( MM SI) • An MMSI is a nine (9) digit number used on a marine radio capable of using digital selective calling (DSC). It is used to selectively call other vessels or shore stations and is similar to a ...
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Cobra MRF45 - page 8
MA YDA Y P AN SECURITE Nothing Comes Close to a Cobra ® Emergency Messa ges And Distress Procedure 11 Marine Emergency Signals The three (3) spoken international emergency signals are: The di stre ss sig nal MA YDA Y is used to i ndic ate th at a sta tion i s threate ned by gra ve and i mmin ent d ange r and re ques ts imm edia te ass istance . Th ...
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Cobra MRF45 - page 9
For Example Nothing Comes Close to a Cobra ® Emergency Messa ges and Distress Procedure 13 Keep t he rad io nea rby . Eve n afte r your m essage ha s been r ecei ved, t he Coa st Gua rd can fi nd you m ore qu ickl y if you can tr ansm it a sig nal fo r a resc ue bo at to ho ne in on . “May day — Ma yday — M ayday” “Thi s is Cor sair — ...
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Cobra MRF45 - page 10
Nothing Comes Close to a Cobra ® VHF Marine Channel Assignments 15 Public Correspondence (Marine Operator) Channels 24, 25, 26, 27, 28, 60, 61, 84, 84A, 85, 85A, 86, 86A, 87, 87A, 88* For calls to marine operators at public coast stations. Y ou can make and receive telephone calls through these stations. P or t Operations Channels 1A* , 5A* , 12* ...
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Cobra MRF45 - page 11
Nothing Comes Close to a Cobra ® VHF Marine Channel Assignments 17 VHF Marine Radio Protocols Ch ann el Use 01 Public Correspondence (Marine Operator) 01A Port Operations and Commercial, VTS in selected areas 02 Public Correspondence (Marine Operator) 03 Public Correspondence (Marine Operator) 03A Government Only 04 Pu bli c Cor re spo nde nce ( M ...
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Cobra MRF45 - page 12
Nothing Comes Close to a Cobra ® VHF Marine Channel Assignments 19 Ch ann el Use 18 Po rt Op era tio ns , Shi p Mov eme nt 18 A Com mer ci al 19 Po rt Op era tio ns , Shi p Mov eme nt 19 A Com mer ci al 2 0 Ca na d a ( Co as t Gu ar d O n ly ); I nt er n a ti on al ( Po r t O pe ra ti on s , Sh ip M ov em en t) 20 A Po rt Op er ati ons 21 Po rt Op ...
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Cobra MRF45 - page 13
Nothing Comes Close to a Cobra ® VHF Marine Channel Assignments 21 Ch ann el Use 63 Pu bli c Cor re spo nde nce ( Mar in e Ope rat or) , Por t Op era tio ns, S hip M ov eme nt 63 A Po rt Op era ti ons a nd Co mme r cia l, VT S in s ele cte d are as 64 Pu bli c Cor re spo nde nce ( Mar in e Ope rat or) , Por t Op era tio ns, S hip M ov eme nt 64 A ...
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Cobra MRF45 - page 14
Nothing Comes Close to a Cobra ® VHF Marine Channel Assignments 23 Ch ann el Use 78 Pu bli c Cor res pon de nce ( Mar ine O per at or) 78 A No n-C omm er ci al (R ecr ea tio nal ) 79 Po rt Op era tio ns, S hi p Mov eme nt 79 A Co mme rc ia l (Al so No n-C om mer ci al o nly i n Gre at La ke s) 80 Po rt Op era tio ns, S hi p Mov eme nt 80 A Co mme ...
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Cobra MRF45 - page 15
Nothing Comes Close to a Cobra ® NO AA W eather Channels And Alert 25 NO AA W e at he r Ch an ne ls A nd A le rt • Monitoring the weather will probably be a frequent use of your radio. The National Oceanic and Atmospheric Administration (NOAA) provides continuous, around-the- clock broadcasts of the latest weather information. T aped weather mes ...
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Cobra MRF45 - page 16
Nothing Comes Close to a Cobra ® Mounting And P owering The Radio 27 Installation And Start-Up Mo un ti ng A nd Po we ri ng T he R ad io • Before using your CobraMarine VHF radio, it must be installed on your vessel. Installing Y our Radio Choose a location for your radio where it will be conveniently accessible with the following factors in min ...
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Cobra MRF45 - page 17
Nothing Comes Close to a Cobra ® Mounting And P owering The Radio 29 W arning Sticker FCC regulations require that the Warning Sticker supplied with this radio be applied to a spot where it is easily seen by the radio operator . Be sure the location is clean and dry before applying the sticker . Electrical P ower Connection Y our CobraMarine VHF r ...
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Cobra MRF45 - page 18
Nothing Comes Close to a Cobra ® Antenna Requirements And Attachment 31 Installation And Start-Up Radio Ope rator Requ irements Do not tran smit when an yone is with in the MPE ra dius of the an tenna unle ss that pers on or person s are shield ed from the a ntenna by a gr ounded met allic barrier . This is especial ly import ant on vesse ls with ...
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Cobra MRF45 - page 19
Nothing Comes Close to a Cobra ® External Devices And Connections 33 Global P ositioning System (GPS) Device (Not Included) Cobra strongly recommends that you obtain and connect a GPS device to your CobraMarine VHF radio. By having a GPS connected, your position will be continuously indicated on the LCD and, most importantly , it will be included ...
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Cobra MRF45 - page 20
Nothing Comes Close to a Cobra ® Getting Started 35 DSC Geographical Alarm Loud, continuous, medium-pitched, high-low tones (warble) — sounds when a geographical call is received. Press any button to turn it Off . DSC Position Request Alarm Medium-loud, continuous, low-pitched series of closely spaced, four (4) beeps [three (3) short – one (1) ...
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Cobra MRF45 - page 21
Nothing Comes Close to a Cobra ® Getting Started 37 Standby And Receive Standby mode is the usual mode for the radio whenever it is turned On . From Standby Mode, You Can: ■ Change your radio’ s settings using set-up routines. ■ Receive messages on the current channel as well as DSC messages. ■ Receive NOAA alerts if Weather Alert mode is ...
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Cobra MRF45 - page 22
Nothing Comes Close to a Cobra ® Set-Up Routines 39 LCD Backlight The LCD has a backlight lamp to make it visible in the dark. This lamp can be adjusted for brightness or turned Off . T o Adjust The Backlight Level: 1. Enter the Settings menu and scroll to LAMP ADJ (lamp adjustment) with the Up/Down buttons. 2. Press the Call/Set button and observ ...
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Cobra MRF45 - page 23
Set-Up Routines 41 U.S.A./Inte rnational/Canada Channel Maps Three (3) sets of VHF Channel Maps have been established for marine use in the U.S.A., Canada, and the rest of the world (International). Most of the channels are the same for all three (3) maps, but there are definite differences (see table on pages 14 through 23). Y our radio has all th ...
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Cobra MRF45 - page 24
43 V oice T ransmission Operating Y our Radio T ransmit P ower Output Y our radio can T ransmit selectively at 1 or 25 watts of power . Cobra suggests you maintain the low power setting for short-range communications and to avoid overpowering nearby stations with your signal. Use the high power setting for long-range communications or when you do n ...
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Cobra MRF45 - page 25
Adv anced Operation 45 W eather Alert Signal When NOAA broadcasts a Weather Alert signal and your radio is in the Weather Alert mode, you will hear a continuous audible tone and the radio will automatically switch to Weather Radio mode. The alert indicators will sound regardless of what channel you are operating on as soon as a NOAA alert signal is ...
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Cobra MRF45 - page 26
Adv anced Operation 47 Scan During Scan , the radio will rapidly switch from channel to channel through all the channels. Whenever any activity is detected, the radio will stop the scan for ten (10) seconds to allow you to listen briefly on that channel. It will then continue to scan unless you switch out of the Scan mode. NOTE The ra dio mu st be ...
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Cobra MRF45 - page 27
DSC Set-Up 49 T o Enter Y our MMSI Number: 1. Enter the Settings menu and scroll to USER MMSI with the Up/Down buttons. 2. Press the Call/Set button and the blinking cursor will appear at the first digit under USER MMSI ID ENTRY . 3. Use the Up/Down buttons to scroll through the number list to that digit of your number . 4. Press the Call/Set butto ...
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Cobra MRF45 - page 28
DSC Set-Up 51 Group MMSI Number Nautical organizations such as yacht clubs and the organizers of events such as regattas can est ablish Gro up MMSIs . T hese allow a m essage to be sent au tomatica lly to all members of the group without having to call each one individually . Each member of the group must enter the Group MMSI number in his radio in ...
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Cobra MRF45 - page 29
DSC Set-Up 53 4. Press the Call/Set button to select the memory locati on. The cu rsor w ill be gin to b lin k at the f irst c hara cter under NAME . 5. Us e th e Up /D ow n butt ons to s crol l thro ugh t he c ha ra ct er l is t. 6. Pre ss the Ca ll/ Set but ton to se lec t a chara cter . This wi ll al so mo ve t he b li nkin g curs or to th e nex ...
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Cobra MRF45 - page 30
2. Choose one (1) of the following: T o Send An Automatic Distress Call: Press and hold the Distress button. T o Send A Manual Distress Call: 1. Use the Up/Down buttons to move the arrow to MANUAL . 2. Press the Call/Set button to go to the position entry screen. 3. Use the Up/Down buttons to manually set the position of your vessel. 4. Press the C ...
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Cobra MRF45 - page 31
DSC Operation 57 Sending An All Ships Calls A DSC All Ships call is used for the same urgency and safety purposes as the Pan and Securite voice calls as well as to send routine messages to all stations at once. It will reach all stations within range of your radio. If you have an urgent, but not life-threatening, situation or a safety warning to br ...
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Cobra MRF45 - page 32
DSC Operation 59 Sending An Individual Call The DSC Individual call feature allows you to notify one (1), and only one (1), station that you want to communicate with that station. It does not alert all other stations within range that you will be sending a message as a voice call on Channel 16 or Channel 9 would. T o Send An Individual Call: 1. In ...
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Cobra MRF45 - page 33
DSC Operation 61 Receiving A Group Call When another station makes a Group call to your radio, the individual alarm will sound, the caller will be identified on the LCD, and your radio will be switched to the channel selected by the caller , just as for an individual call. Press any button to turn Off the alarm. T o Receive A Group Call: 1. Listen ...
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Cobra MRF45 - page 34
DSC Operation 63 If The Station Y ou Called Chose Not T o Reply: NO REPLY will show on your screen. Y ou will have two (2) choices: ■ RESEND the request. ■ EXIT the Position Request mode. T o Resend Y our Position Request: 1. Use the Up/Down buttons to scroll to RESEND . 2. Press the Call/Set button. T o Exit The Position Request Mode: 1. Use t ...
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Cobra MRF45 - page 35
DSC Operation 65 Sending A P osition Send Position Send uses your connected GPS in similar fashion to the position request functi on, exc ept tha t you in itia te the a ctiv ity to let an othe r stat ion kn ow wher e you ar e. T o Send A Position Send Message: 1. In Standby mode, select a channel on which you want to communicate. 2. Press the Call/ ...
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Cobra MRF45 - page 36
Specifications 67 Sp ec if ic ati on s • General Number of Channels All U.S.A., Canadian, International and all NOAA Weather Channels Channel Spacing 25 kHz Modulation 5 kHz Max. Input Voltage 13.8 VDC Current Drain: Stand-by 20 mA Receive 200 mA T ransmit 5A @ High power 1A @ Low T emperature Range -20˚ C to 60˚ C Unit Dimensions 6.2 5" x ...
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Cobra MRF45 - page 37
Product Service 69 Pr od uct S erv ic e • If you ha ve any questions about operation or installing y our new CobraMarine VHF pr oduct, or if y ou are missing par ts… Please call Cobra first! DO NOT RETURN THIS PRODUCT TO THE STORE! See customer assistance on page A1. If your product should require factory ser vice, please call Cobra first befor ...
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Cobra MRF45 - page 38
F l us h Mo un t T em pl at e / Pl an ti l l a p a ra m on ta je e mp ot ra d o Customer Service 71 Use the supplied template to mark and cut an opening in the flat surface. CAUTION Before cutting, be sure the area behind the flat surface is clear of any instruments or wires that might be damaged in the process. Use la plantilla suministrada para m ...
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