Uniden MC 790 Owner'S Manual Download Page 1 | Manualshive

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Summary of Contents for MC 790

Page 1: ... nl n 6 10 2 0 1 MC 790 MARINE RADIOTELEPHONE OWNER S MANUAL ...

Page 2: ... trans ceiver utilizes a number ofgaskets sealing rings waterproof membranes and other sealants to effect a splash proof housing for protection of the electronics I INSTALIATI N r CAUTION The MC790 will operate only with nominal J2 volt negative ground battery systems It is important to carefully determine the most suitable location for your MC790 on your vessel Electrical mechanical and environme...

Page 3: ... Locate your antenna as high as possi ble and clear from metal objects The reliable range of coverage is a direct function of antenna height 5 Select a location that does not allow the radio to be subjeCted to direct sun light including that coming through windows 6 SeleCt a location that allows free air flow around the heat sink on the rear of the radio 7 Select a location well away frorn the shi...

Page 4: ...k lighting for night operation I CID Key Board Selects the desired channel LCD display shows CH through CH 88 Forchannels through 9 firstyou must depress 0 then the de sired channel number Ifyou attempt to enter CH 75 76 and channels other than VHF marine channels which are Ch 29 59 and 89 99 the letter E will flash in the LCD display and also 70 will flash when Ch 70 is selected for transmit on i...

Page 5: ... only a Six 6 AMPEREfast blow fuse for replacement ANT Connector This connec tor is for connection of the antenna A type PL259 connector is required to make proper connection Note Tile racJio must lK connected lCI 1 power source or LIlt nJ IIJory to fw1i ll properly Remember nor o disconneCL ll 1e power cable or you will lose the memory However when this unit is not going 0 tJe used for a long per...

Page 6: ...intenance is required however a feJJ precautions should be obseNed If the antenna has been damaged you should not transmit except in case of emergency A defective antenna may cause damage to your radio Ifyour radio has been accidentally subject ed to splay or splash you should immediate lywipe it down with a soft cloth dampened with fresh water 1 i I i f ...

Page 7: ... 10 seconds after the first one it returns to lhe previous channel When the seleCted channel number does nOt exist E flashes By pressing this key DUAL is indicated on the display Every one and cihalf seconds it monitOrs CH 16 If the receiver hearsa signal on CH 6 it locks ontO that channel Wt en the signal stops it returns ro monitoring CH 6 very one and a half seconds DUAL can be operated along w...

Page 8: ...SECURE FRONT PANEL TO CHASSIS I 1 4 REMOVE SPEAKER CABINET 1 REMOVE FOUR SCREWS FROM SPEAKER CABINET I 1 8 CAREFULLY REPLACE CovER CABINET BUT ON BOTTOM OF RADIO INSERT UNDER FROWi PANEL FIRST AND THEN LOWER AT REAR OF RADIO 9 TURN RADIO OVER AND nr CONN CT SPFAKUi WIRe I FIIDS 101 HEPOSITION SPEAKER CIIBINET ON TOP OF RADIO AND REPLACE FOUR SCHE WS TO SECUH THE HOUSING 11 RETIGHTEN FOUR APPEARANC...

Page 9: ... installations it may be necessary to take measures to further reduce the effect of no c interference All DC t auc y 1 t wires antenna lead and accessory cables should be routed away from the engine and engine compartment and from power cabling carrying particularly high currents In severe cases of Lmpulse noIse interfer ence it may be necessary to install a noise suppression kit that is available...

Page 10: ... s Coast GU l 24 157 200 161 ROO PIJI I or Nu Y I1I1 Yl 5 7 7 50 1 I lJ tJ ul l 011 1 tJ fjIJ Y I 2 15 300 16 I lOO Pt DI l 0 1 tJu Y Uuyl i 27 157 350 16 950 Public Corresp No i Yes Busy Tei 28 I57 400 162 000 PubliC Corresp No Yes Busy Tel I 60 156 025 156025 61 1 56 075 156 075 62 56 125 56 125 63 156 175 56 175 64 56 225 56 225 65 156 275 156 275 Port Ops Yes Yes 66 1567 S i 156 37 POri Ops Yc...

Page 11: ...675 i 156 675 74 I 156 725 156 725 77 156 875 I 156 875 713 I 156 925 161 525 79 I 156 975 I 161 575 80 I 157 025 I 161 625 81 I 157 075 I 61 675 82 157 125 161 725 83 i 157 175 I 161 775 84 157 225 I 161 825 85 157 275 I 161 875 86 157 325 161 925 87 I 57 375 i 161 975 87A 157 375 I 157 375 88 157 425 162 025 TYPE TRAFFIC SHIP i SHIP I PERMANENT TO SHIP TO SHORE I SCAN LIST I 1 Yes I es Yes I Yes...

Page 12: ...enna Impedance Speaker Microphone Channel Display Frequency Stability Operating Tempera ture Range Shock and Vibration Size Weight Controls Connectors Frequency Range Supply Voltage TRANSMITfER Power Output Power Requirement Modulation Hum and Noise Attenuation Audio Distortion Spurious Emission Output Transistor Protection Output Power Stabilization IJI Transmit55 Receive 80 PLLsynthesizer Oohms ...

Page 13: ...NAD 0 50pV for 20 dB SIN 0 20pV EIA method 2 01 lV EIA method 75 dB 75 dB 65 dB 11 12 dB SINAD 70 dB EIA method t7 5kHz a 6 dB down t 15 kHz I60 dB down Audio Output Power 3 5 watts minimum at J0 distortidQ at kHz modula tion and 3 5 kHz deviation 4 ohm speaker Power Requirement O 6A 11 I3 8V DC squelC led J 2A pI 3 8V DC at r Hcd audio output Jst c 21 4MHz 2nd 455 kHz Hum and Noise Level 50 dB EI...

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