Radio Shack DX-398 owner manual Tuning Ssb Stations, Using Rds

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TUNING SSB STATIONS

AM RF GAIN on the left side of the re- ceiver lets you tune a received signal for the best SW reception. If the signal is weak, turn AM RF GAIN toward +. If the sound is distorted, turn AM RF GAIN toward –.

TUNING SSB STATIONS

SSB (single sideband) is very popular among amateur radio and business ra- dio users because of its superior signal quality. Many amateurs who operate SSB and transmit below 10 MHz gen- erally use LSB (lower sideband), while amateur and commercial stations who transmit above 10 MHz generally use USB (upper sideband). Your receiver receives both USB and LSB transmis- sions.

Follow these steps to receive SSB stations.

1.Select an SW band (see “Select- ing a Band” on Page 18).

2.If you know the frequency of an SSB station, enter that frequency.

Or, scan the band for SSB stations by slowly rotating MANUAL TUN- ING, tuning through the selected band until you hear an SSB sta- tion. Or, scan the band for USB or LSB stations by holding down

TUNING USING RDS or TUNING Manual backgroundManual background for about 2 seconds until you hear an USB or LSB station

Note: SSB stations sound dis- torted when you tune to them in the normal SW band. To help you find SSB stations, watch for deflections on the signal strength indicator. Since SSB is transmit- ted with a suppressed carrier, the signal strength indicator will move more quickly when there is a transmission and more slowly dur- ing pauses in the transmission.

3.When you have located an SSB station, press AM MODE to receive the transmission. Repeatedly press AM MODE to switch between USB or LSB transmissions (try LSB for frequencies below 10 MHz or USB for frequencies above 10 MHz).

4.Set STEP to SLOW then readjust

MANUAL TUNING for maximum intelligibility.

USING RDS

The receiver displays information about FM radio stations that transmit a Radio Data System (RDS) signal. When the receiver receives an RDS station, the station’s call letters appear on the display. Also, if the station broadcasts CT (clock time) informa- tion, the receiver automatically cor- rects the displayed time.

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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 TIMEManual Tuning TUNING STATIONSSelecting a Band 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 MOVING A FREQUENCY TO ANOTHER MEMORY LOCATION LOCKING/UNLOCKING A STORED STATIONDELETING A STATION YOU STORED USING PRIORITY USING THE TIMER ALARMS TIMER FUNCTIONSSetting an Alarm Silencing the AlarmTurning a Timer Alarm On or Off USING THE SLEEP TIMERTimer Recording 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