Radio Shack DX-398 Listening Hints, Reference Sources, Frequency Conversion, Band Allocation

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LISTENING HINTS

LISTENING HINTS

Shortwave listening is a hobby with thousands of participants worldwide. It requires no special knowledge or skills, but your enjoyment increases as you gain experience and develop spe- cial listening techniques.

The information in this section can help you make the most of your DX-398.

REFERENCE SOURCES

Many books and magazines about shortwave listening are available through your local library or news- stand. Consult sources such as the World Radio Handbook, Radio Ama- teur’s Handbook, Passport to World Band Radio, Monitoring Times, and Popular Communications. These pub- lications can help you learn about the conditions that make long-distance re- ception possible and provide up-to- date listings for shortwave broadcasts in English and in other languages.

using the frequency’s wavelength. For example, the 19-meter band refers to the range of frequencies with waves about 19 meters long.

Use the following equations to convert kHz, MHz, and meters.

To convert MHz to kHz, multiply by

1,000. For example:

9.62 MHz 1000 = 9,620 kHz

To convert kHz to MHz, divide by

1,000. For example:

2780 kHz 1000 = 2.780 MHz

To convert MHz to meters, divide 300 by the number of MHz. For example:

300 7.1 MHz = 42.25 meters

To convert meters to MHz, divide 300 by the number of meters. For exam- ple:

300 42.25 meters = 7.1 MHz

FREQUENCY

CONVERSION

A band is a group of frequencies. Sometimes, bands are grouped ac- cording to their wavelengths, in meters. The tuning location of a station can be expressed as a frequency (kHz or MHz) or a wavelength (meters).

Amateur radio operators generally re- fer to the frequencies they operate on

BAND ALLOCATION

Certain bands are set aside for specific purposes.

Amateur Radio Frequencies

Tuning to the amateur radio frequen- cies can be interesting and helpful, be- cause amateur radio operators often broadcast emergency information when other means of communication break down.

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Contents All-BandShortwave Receiver OWNER’S MANUALwith Radio Data System DX-398FEATURES Control Lock — prevents accidental setting changes THE FCC WANTS YOU TO KNOW Band MetersCONTENTS Storing FM, MW, or LW Frequencies in Memory Using Standard AC Power CONNECTING TO POWERInstalling Internal Batteries PREPARATIONUsing Vehicle Battery Power ADJUSTING THE TELESCOPING ANTENNA CONNECTING AN EXTERNAL ANTENNATraffic Safety CONNECTING HEADPHONESCONNECTING A TAPE RECORDER Listening SafelyUSING THE STAND USING THE MEMO LABEL SETTING THE MW AM TUNING INCREMENTUNDERSTANDING YOUR RECEIVER TUNING / — tunes up or down the band you selected C cancel — cancels an entryAM MODE — lets you set up the alarm timer M/MEM — stores frequencies into memoryLIGHTING THE DISPLAY BASIC OPERATIONTURNING THE RECEIVER ON AND OFF LOCKING THE CONTROLSSETTING AND VIEWING THE LOCAL TIME VIEWING A WORLD TIME CHANGING A WORLD CITY NAMEManual Tuning TUNING STATIONSSelecting a Band Direct Access Tuning Scan TuningTUNING PREPROGRAMMED SHORTWAVE STATIONS PAGEMemory Location DX-398SHORTWAVE PAGES CHARTCountry PagePage CountryMemory Location StationsPage CountryMemory Location StationSTEREO/MONO-FM ADJUSTING THE TONESPECIAL TUNING CONTROLS WIDE/NARR.-AMTUNING SSB STATIONS USING RDS1.Turn on the receiver 5.If your time zone is using DaylightFollow these steps to use RDS Saving Time, repeatedly press until appearsAutomatic Storage MEMORY FUNCTIONSSTORING FM, MW, OR LW FREQUENCIES IN MEMORY Manual StorageSTORING SW FREQUENCIES IN MEMORY 4.While PAGE and MEMO flash MOVING A FREQUENCY TO ANOTHER MEMORY LOCATION LOCKING/UNLOCKING A STORED STATIONDELETING A STATION YOU STORED USING PRIORITY Setting an Alarm TIMER FUNCTIONSUSING THE TIMER ALARMS Silencing the AlarmTurning a Timer Alarm On or Off USING THE SLEEP TIMERTimer Recording FREQUENCY CONVERSION LISTENING HINTSREFERENCE SOURCES BAND ALLOCATIONInternational Frequencies Time Standard Frequencies Aircraft FrequenciesShips and Coastal Station Frequencies Longwave BandLISTENING GUIDE Remarks StationLocation 5,950Remarks StationLocation 9,610Remarks StationLocation 15,084BIRDIES AMATEUR SHORTWAVE BANDS IN THE USAmateur Shortwave Bands in MHz TROUBLESHOOTING CARE AND MAINTENANCE RESETTING THE DISPLAY SPECIFICATIONS Page RadioShack Limited Ninety-DayWarrantyWe Service What We Sell A Division of Tandy Corporation