Realistic DX-440 warranty System Grounding Band Allocation

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SYSTEM GROUNDING

 

BAND ALLOCATION

 

 

 

 

 

 

To ensure the best reception, always connect a ground wire to the externai antenna jack. Connect the single wire lead-in to the center terminal of the RCA plug. Connect.a suitable earth ground to the outer terminal of the plug.

A suitable earth ground can be a clamp around a metal water pipe or a copper rod driven several feet into the earth. Radio Shack seils a copper ground rod (Cal. No. 15-530) and the appropriate hardware.

To avoid interference and confusion, certain portions of the radio spectrum have been set aside for specific pur- poses. Perhaps the most familiar exam- ple is 540 - 1600 kHz, the standard AM broadcast band.

Ham radio operators use the foilowing bands:

160 meters = 1,800 - 2,000 kHz

80 meters = 3,500 - 4,000 kHz

Note that broadcasts and hams share 7,100 -7,300 kHz, and interference is heavy in that range.

Broadcasts in tropical regions have special bands set aside for them. In such areas shortwave is the only way to reach isolated locations:

120 meters = 2,300 - 2,500 kHz

90 meters = 3,200 - 3,400 kHz

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40 meters = 7,000 - 7,300 kHz

20 meters = 14,000 - 14,350 kHz

15 meters = 21,000 - 21,450 kHz

10 meters = 28,000 - 29,700 kHz

75 meters = 3,900 - 4,000 kHz

60 meters = 4,750 - 5,060 kHz

The rest of the shortwave range is filled with marine, aeronautical and military stations. Such stations usuaily use

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International broadcasting stations have several bands set aside for them:

49 meters = 5,800 - 6,200 kHz

41 meters 7,100 - 7,500 kHz

31 meters = 9,500 - 9,900 kHz

25 meters = 11,650 - 12,050 kHz

19 meters = 15,100 - 15,600 kHz

16 meters = 17,550 - 17,900 kHz

13 meters = 21,450 - 21,850 kHz

11 meters = 25,600 - 26,100 kHz

either SSB or CW, and can be found outside the amateur and broadcast bands.

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Contents Ownersmanual AM/FM Direct Entry Communications Receiver Introduction Contents19. FM/MONO/STEREO/AMWIDE Features Control LocationsInstalling Batieries Choosing a Power SupplyUsing AN Automotive Batiery Using Household ACSetting the Clock Preliminary SettingsSelecting a Band and Turning on Power Band Frequency Antenna Range Tuning the RadioODD OCJ 00000 ILI Memory TuningClock Radio Operation Setiing the AlarmL4=l Using the Sleep Timer001 DIBmJ 000 Just the signal quality Using the Shoulder StrapFM Band Choosing AN AntennaAM Shortwave Bands System Grounding Band Allocation Shortwave Hobby Listening Notes Frequency Conversion Cfcx Country LOGStation Location Remarks FR3Hcjb 11,910 BBCTroubleshooting Care and Maintenance LW/MW AMLW,MW,SWSSB AM/FM Direct Entry Communications ReceiverIf AM/SSB/CW AM/SSBRadio Shack