Radio Shack DX-398 owner manual Birdies, Amateur Shortwave Bands In The Us

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BIRDIES

Birdies are the products of internally generated signals that make some frequencies difficult or impossible to receive. If you program a birdie frequency, you hear only noise on that frequency. The most common birdies to watch for on this receiver are:

450 kHz	3,844 kHz	9,000 kHz	10,250 kHz

18,000 kHz	20,490 kHz	21,835 kHz	21,868 kHz

Notes:

•See “Storing SW Frequencies in Memory” on Page 28 for more information about using the shortwave page 29.

•Interference from devices such as dimmer switches and motors and atmo- spheric conditions can disrupt shortwave listening. You can minimize interfer- ence by moving the receiver away from the source of noise, or turning off the offending device. Shortwave stations sometimes change their operating fre- quency to avoid interfering with other stations, to improve reception during dif- ferent seasons, or to take advantage of signal propagation changes due to sun spots. For this reason, a given station might not be found on the frequency listed in memory. Reception of these stations can also be affected by rapid changes in the ionosphere. Sometimes the station you are listening to might fade out completely. These occurrences are normal shortwave listening condi- tions.

AMATEUR SHORTWAVE BANDS IN THE US

Amateur radio operators in the U.S.A. are found in the bands listed here. They op- erate mostly in LSB (Lower Side Band) mode. Morse code operators are generally found in the lower areas of each band. The amateur radio operators with the most advanced classification are found in the upper areas of each band.

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Contents with Radio Data System OWNER’S MANUALAll-BandShortwave Receiver DX-398FEATURES Control Lock — prevents accidental setting changes Band Meters THE FCC WANTS YOU TO KNOWCONTENTS Storing FM, MW, or LW Frequencies in Memory Installing Internal Batteries CONNECTING TO POWERUsing Standard AC Power PREPARATIONUsing Vehicle Battery Power CONNECTING AN EXTERNAL ANTENNA ADJUSTING THE TELESCOPING ANTENNACONNECTING A TAPE RECORDER CONNECTING HEADPHONESTraffic Safety Listening SafelyUSING THE STAND SETTING THE MW AM TUNING INCREMENT USING THE MEMO LABELUNDERSTANDING YOUR RECEIVER AM MODE — lets you set up the alarm timer C cancel — cancels an entryTUNING / — tunes up or down the band you selected M/MEM — stores frequencies into memoryTURNING THE RECEIVER ON AND OFF BASIC OPERATIONLIGHTING THE DISPLAY LOCKING THE CONTROLSSETTING AND VIEWING THE LOCAL TIME CHANGING A WORLD CITY NAME VIEWING A WORLD TIMESelecting a Band TUNING STATIONSManual Tuning Scan Tuning Direct Access TuningPAGE TUNING PREPROGRAMMED SHORTWAVE STATIONSCountry DX-398SHORTWAVE PAGES CHARTMemory Location PageMemory Location CountryPage StationsMemory Location CountryPage StationSPECIAL TUNING CONTROLS ADJUSTING THE TONESTEREO/MONO-FM WIDE/NARR.-AMUSING RDS TUNING SSB STATIONSFollow these steps to use RDS 5.If your time zone is using Daylight1.Turn on the receiver Saving Time, repeatedly press until appearsSTORING FM, MW, OR LW FREQUENCIES IN MEMORY MEMORY FUNCTIONSAutomatic Storage Manual StorageSTORING SW FREQUENCIES IN MEMORY 4.While PAGE and MEMO flash DELETING A STATION YOU STORED LOCKING/UNLOCKING A STORED STATIONMOVING A FREQUENCY TO ANOTHER MEMORY LOCATION USING PRIORITY USING THE TIMER ALARMS TIMER FUNCTIONSSetting an Alarm Silencing the AlarmTimer Recording USING THE SLEEP TIMERTurning a Timer Alarm On or Off REFERENCE SOURCES LISTENING HINTSFREQUENCY CONVERSION BAND ALLOCATIONInternational Frequencies Ships and Coastal Station Frequencies Aircraft FrequenciesTime Standard Frequencies Longwave BandLISTENING GUIDE Location StationRemarks 5,950Location StationRemarks 9,610Location StationRemarks 15,084AMATEUR SHORTWAVE BANDS IN THE US BIRDIESAmateur Shortwave Bands in MHz TROUBLESHOOTING CARE AND MAINTENANCE RESETTING THE DISPLAY SPECIFICATIONS Page We Service What We Sell Limited Ninety-DayWarrantyRadioShack A Division of Tandy Corporation