Panasonic RF-4800 Скачать руководство пользователя | Manualshive

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Содержание RF-4800

Страница 1: ... n Ions MODEL NO RF 4800 FM AM 10 BAND COMMUNICATIONS RECEIVER Panasonic Read these instructions completely before operating this set ...

Страница 2: ... you continued enjoyment for many years CONTENTS LOCATION OF CONTROLS 3 POWER SUPPLY 3 ANTENNAS 4 CONTROLS AND FUNCTIONS 5 RECEIVER OPERATION 7 ABOUT SSB AND CW 8 ELECTROMAGNETIC WAVE PROPAGATION 9 PRECAUTIONS 9 HELPFUL HINTS 9 SPECIFICATIONS 10 The serial number of this product may be found on the back of the unit You should note the serial number of this unit in the space provided and retain thi...

Страница 3: ... 2 ...

Страница 4: ... Terminals Coaxial Cable Antenna Jack DC Input Jack AC Input Jack POWER SUPPLY Battery Operation Open the battery compartment covers by pushing each latch as shown in Fig 1 lrisert 8 0 size Panasonic UM 1 or equivalent batteries observing the correct polarity as shown in Fig 2 Place the cloth bands under the batteries to facilitate easy removal Replace the compartment covers Note Make sure the DC ...

Страница 5: ...ry antenna wire to the MW SW1 Antenna Terminals and extend See Fig 7 11111111 111111 11111 II IIIIIIIIIWIIIII I J To fix use push pins ape or adhesive t 111111111111 III Fig 6 111111111111 III 111111111111 III g n I le l How to Connect Antenna Wires to the Terminals Push Terminal Q W i Insert wire Push Fig 8 Te minal_r C r C Iir Push ert wire 4 SW External antenna and ground connections are requir...

Страница 6: ...miter Switch Set this switch to ON to cut out impulsive noise such as lightning or other sparks Normally it should be positioned at OFF e AM Mode Switch For CW Continuous Waves or SSB Single Sideband recep tion turn to the CW SS I position When listening to any other broadcast the switch should be set in AM This switch has no effect on FM 5 3 Tuning Battery Indicator Acts as tuning and battery che...

Страница 7: ...ne to SSB or CW signals then carefully rotate this control until the signals are most suitable See page S Light Switch When tuning in the dark push to ON The Tuning Battery Indicator0 and a tuning scale being used will be illuminated Turn off when the illumination is unnecessary 6 Display Switch This turns the Digital Frequency Display on and off For saving the battery power this switch should be ...

Страница 8: ...tion Main Band SelectorQl FM Indicator Switch SIGNAL FM AFC Switchfj ON up Tuning Controlf Desired Station Volume Control CD Desired Level Note If the desired station is closely adjacent to a stronger station the AFC mall tune the receiver to the strong station At such times tune in the desired station with the FM AFC Switchfj in the OFF down position 7 SW2 8 Reception Control Position Main Band S...

Страница 9: ...ic wave carrier with two sidebands is transmitted as a single group in an AM form High frequency waves are contained in the Upper Sideband USB while the lower frequency waves are in the Lower Sideband LSB Voice and other informa tion are contained in the side bands but are not included in the carrier thus the carrier is not always necessary and other methods for transmitting the informations are c...

Страница 10: ...ons in the AC power cord which may result in possible fire or electric shock hazard Also excessive bending pulling or slicing of the cord should be avoided Do not unplug the AC power cord by pulling on the cord To do so may cause permature failure or shock hazard Do not operate the set on AC power in a bathroom as a poten tial shock hazard may result 9 one must keep all of the foregoing in mind Th...

Страница 11: ...n SW2 B External antenna 75n or M type coaxial cable antenna 75n FM 3 dB down limiter 1 6 1V SIN 26 dB 31N MW SIN 10 dB 60 uV m SIN 26 dB 400 uV m SW1 SIN 10 dB 1 0 uV SIN 26 dB 6 0 uV 10 Image Ratio Selectivity Frequency Stability SW2 B Input Jacks Output Jacks SW2 B Tuning Control Semiconductors Power Output Speaker Dimensions Weight SW2 SIN 10 dB 1 3 uV SIN 26 dB B O uV SW3 SIN 10 dB O B uV SIN...

Страница 12: ... refet O nC jtb fj 4r P anasonj S _g nter listecf inttieenclosed Dire t ryJor Con Ult yOYr a ufbo tizedPanaSonfC aijiretfor detElii edinstructlons 0 _ _ _ _ __ _ _ _ Panasonic Company Division of Matsushita Electric Corporation of America One Panasonic Way Secaucus New Jersey 07094 Matsushita Electric of Hawaii Inc 320 Waiakamilo Road Honolulu Hawaii 96817 RQX6167ZA FlO77 0 POWER CIRCUIT Printed i...

Страница 13: ...enna and a radio to exhibit different impedances for different radio wavelengths frequencies To overcome thiS condition the Antenna Coupler is installed between the antenna and the radio and adjusted to obtain a suitable match This Antenna Coupler is designed for reception of all types of radio signals ranging from 0 5 MHz to 30 MHz and for coupling either a balanced or an unbalanced type of trans...

Страница 14: ...lector Switch tl _ it Balanced Antenna rr L L Low Impedance Terminals Receiver Terminals CONNECTIONS Inverted L Antenna 1 II I Lightning Arrester Knife Switch wl 0J 1 U The shorter the better Antenna Coupler r 1 10 Reoej e U P i er S Ground Terminals Fig 1 As this antenna is oj the unbalanced type switch the Balanced Unbalanced Selector Switch to the up position ...

Страница 15: ...l storm Use the short pair of leads that come with this unit to connect the coupler to the radio Select a moist postion when burying the ground rod in the ground _ERECTING THE ANTENNA I Mast I I about 40 feet I Insulator 1 1 Fig 2 Antenna Leac h Cli flN Fig 3 Use the easiest way to erect the antenna by taking advantage of existing vertical structures poles etc See Fig 2 After determining the lengt...

Страница 16: ...t be used for transmission purposes To avoid damage to the cabinet and to the parts inside do not expose the coupler to direct sunlight heating equipment hot air blowers etc To clean the cabinet wipe it with a soft cloth dampened in diluted soap and water Do not use benzine thinner abrasive powders etc This coupler does not require any batteries or AC line power to operate It contains tuning circu...

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