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15

Operation

• If  you  enter  an  incorrect  digit,

press

C

 (cancel) once to erase

the  last  digit,  twice  to  erase
the  last  two  digits,  and  so  on,
then enter the correct digit. 

Manual Tuning 

You can select a lower or higher fre-
quency  by  pressing 

  or 

.  Each

press  of 

  or 

  decreases  or  in-

creases the frequency increments.

Preset Tuning Steps

You can also rotate 

TUNING/

 

to se-

lect a higher or lower frequency. 

As you turn 

TUNING/

 to fine tune a

frequency,  you  might  find  that  you
need the frequencies to change more
slowly.  To  change  the  rate  the  fre-
quencies  change  as  you  rotate  the
knob, press and rotate 

TUNING/

un-

til 

STEP

 appears, which tunes to the

desired step.

Preset Fine Tuning Steps

Notes:

• Fine tuning only works when you

use rotary tuning. 

• When  you  tune  to  a  station  and

the  TUNE/SSB  tuning  indicator
lights  but  the  sound  is  not  clear,
rotate

TUNING/

up  or  down  to

fine tune the station until you get
the clearest sound.

Scan Tuning 

To  automatically  tune  up  or  down  to
the  next  active  frequency  in  the  se-
lected band, hold down 

 or 

 for

about  1  second.  The  receiver  scans
up  or  down  the  selected  band  and
tunes  to  the  first  frequency  it  finds
with a strong signal. 

Note:

  When  scanning,  the  receiver

only  searches  for  frequencies  with
strong signals. To search for stations
with  weaker  signals,  use  one  of  the
manual tuning methods.

Tuning an SW Meter Band

Follow  these  steps  to  tune  an  SW
Meter band.

1. Repeatedly press 

BAND

 until 

SW

appears.

2. Repeatedly  press 

SW SELECT

until  the  desired  meter  band
appears.

FM

AM

SW

LW

0.1 or 0.2 

MHz

9 or 10 

kHz

5

kHz

9

kHz

FM

AM

LW

SW

.05MHz
(50 kHz)

1 kHz

1 kHz

1 kHz

20-230.fm  Page 15  Friday, March 24, 2000  9:07 AM

Summary of Contents for DX-402

Page 1: ...Owner s Manual Please read before using this equipment 45 Memory Digital SSB Shortwave Receiver with AM FM Radio 20 230 fm Page 1 Friday March 24 2000 9 07 AM...

Page 2: ...to alert you to the presence of uninsulated dangerous volt age within the product s enclosure that might be of sufficient magnitude to con stitute a risk of electric shock Do not open the product s ca...

Page 3: ...ternal Antenna 12 Setting the AM Tuning Increment 12 Using the Folding Stand 12 Operation 12 Turning the Receiver On Off 12 Adjusting the Antenna 12 Tuning 13 Selecting the Band 13 Improving Reception...

Page 4: ...erence Sources 21 Frequency Conversion 21 Band Allocations 22 Amateur Radio Frequencies 22 International Frequencies 22 Aircraft Frequencies 23 Ships and Coastal Station Frequencies 23 Time Standard F...

Page 5: ...ers Continuous SW Coverage from 1 711 MHz to 29 999 MHz allows you to scan the entire SW band Digital Synthesized Receiver en sures fast accurate and drift free tuning Memory Tuning you can store up t...

Page 6: ...ING CLARIFY SW EXT ANT FM SW DX LOCAL FM FM ST SSB AM Jack DC IN 6V Jack AUTO M E M O TUNE SSB Indicator Display Backlight POWER DISPLAY MODE ALARM ALARM TUNING AUTO MEMO ENTER FREQ TIME SET Band SW S...

Page 7: ...W shortwave meter bands see Selecting the Band on Page 13 BAND toggles between the AM LW longwave FM and SW bands VOLUME controls the volume Control Lock prevents you from accidentally turning the rec...

Page 8: ...cover in the direction of the arrow and remove it 2 Slide four AA batteries into the compartment according to the polarity symbols and marked next to the compartment For easy removal place the bat te...

Page 9: ...is connect it from the receiver Insert the adapter s barrel plug into the receiver s DC IN 6V jack then plug the adapter into a standard AC outlet Using Vehicle Battery Power You can power the receive...

Page 10: ...The signal be comes monaural but the sound might improve To return to a stereo signal slide FM FM ST SSB AM to FM ST Listening Safely To protect your hearing follow these guidelines when you use head...

Page 11: ...nd Err appears prompting you to enter the correct time To change the 12 hour format to a 24 hour format see Using Mode on Page 20 3 To set AM or PM press M 4 Press to store the setting The CLOCK 1 tim...

Page 12: ...1 sec ond then disappears If you are in a country where the AM frequency increments are 9 kHz set the tuning increment to 9kHz by pressing MODE 2 0 then AM 9 kHz appears for 1 second then dis appears...

Page 13: ...tunes to the stronger lo cal station Note Interference can be caused by a computer motor or other electronic device nearby To improve reception move the receiver away from these devices To improve rec...

Page 14: ...s 1 Repeatedly press BAND until the desired band appears 2 Press If you selected the FM band FM MHz flashes and appears for about 7 seconds If you selected the AM or LW band AM or LW flashes and kHz a...

Page 15: ...rotary tuning When you tune to a station and the TUNE SSB tuning indicator lights but the sound is not clear rotate TUNING up or down to fine tune the station until you get the clearest sound Scan Tun...

Page 16: ...use TUNING to get the best SSB reception Memory Tuning For quick tuning you can store up to 45 stations in your receiver s memory locations The 45 memory locations are grouped into pages M1 and M2 Yo...

Page 17: ...ation number appears in a frame Deleting a Station from Memory 1 Repeatedly press BAND until the desired band appears 2 Use the number keys to enter the memory location number you want to delete 3 Pre...

Page 18: ...Page 20 4 While is flashing use the number keys to enter the desired alarm time then press M to set AM or PM If you enter an incorrect digit press C cancel once to erase the last digit twice to erase...

Page 19: ...rm At the set alarm time the radio turns on or the buzzer sounds and or flashes After several seconds the buzzer s volume increases After a few more seconds the volume increases again The buzzer autom...

Page 20: ...EP appears briefly to confirm the setting To rearrange manually stored FM fre quencies in memory locations 1 9 press MODE 5 0 The receiver or ders the frequencies from the lowest to the highest Note F...

Page 21: ...publications can help you learn about the conditions that make long dis tance reception possible and provide up to date listings for shortwave broadcasts in English and in other languages FREQUENCY CO...

Page 22: ...ters 3 500 3 800 kHz CW 3 800 4 000 kHz SSB 40 meters 7 000 7 150 kHz CW 7 150 7 300 kHz SSB 20 meters 14 000 14 200 kHz CW 14 200 14 350 kHz SSB 15 meters 21 000 21 250 kHz CW 21 250 21 450 kHz SSB 1...

Page 23: ...issions from ships and coastal stations are in SSB and CW You can hear these transmissions in the following bands 2 000 2 300 kHz 4 063 4 139 kHz 4 361 4 438 kHz 8 195 8 181 kHz 12 330 12 420 kHz 13 1...

Page 24: ...North America However reception varies based on the sea son time of day and a number of other conditions This information can change at any time For sources of yearly up to date listings see Referenc...

Page 25: ...ish 4 980 Ecos del Torbes San Cristobal Venezuela Programs in Spanish 5 020 Solomon Islands Broadcasting Service Honiara Solomon Islands 5 057 Radio Gjirokaster Gjirokaster Albania Programs in Albania...

Page 26: ...Radio Noumea Noumea New Caledonia Programs in French 7 300 Radio Tirana Tirana Albania 9 475 Radio Cairo Cairo Egypt 9 515 Voice of Greece Athens Greece 9 525 Radio Korea Seoul South Korea 9 530 Spani...

Page 27: ...eden Stockholm Sweden 11 720 Radio Moscow Moscow Russia 11 735 Radio Sofia Sofia Bulgaria 11 745 Voice of Free China Taipei Taiwan 11 815 Radio Japan Tokyo Japan 11 825 Radio Tahiti Papeete Tahiti Pro...

Page 28: ...l India Radio New Delhi India 15 260 BBC London England 15 265 Finnish Radio Helsinki Finland 15 275 Radio Sweden Stockholm Sweden 15 305 Swiss Radio International Berne Switzerland 15 310 Radio Japan...

Page 29: ...in LSB Lower Side Band mode Morse code operators are gen erally found in the lower areas of each band The ham operators with the most advanced classification are found in the upper areas of each band...

Page 30: ...termittent sound The internal batteries are weak Check the batteries and replace or recharge them as necessary The antenna needs adjusting Adjust the telescoping antenna or connect an external antenna...

Page 31: ...set the receiver only when you are sure it is not working properly Insert a pointed object such as a straightened paperclip into the RESET hole lo cated on the bottom of the receiver then press and r...

Page 32: ...dirt which can cause prema ture wear of parts Handle the receiver gently and carefully Dropping it can damage circuit boards and cases and can cause the receiver to work im properly Use only fresh bat...

Page 33: ...her device Connecting your receiver to an outlet that is on a different electri cal circuit from the other device Contacting your local RadioShack store for help If you cannot eliminate the interfer e...

Page 34: ...0 3 400 MHz 90 meters 13 500 13 870 MHz 21 meters 3 850 4 000 MHz 75 meters 15 100 15 800 MHz 19 meters 4 750 5 060 MHz 60 meters 17 480 17 900 MHz 16 meters 5 900 6 200 MHz 49 meters 18 900 19 020 MH...

Page 35: ...mA Center Tip Negative DC Requires Optional Adapter 6V 300mA Center Tip Negative Battery Life Alkaline 12 Hours Continuous Operation 50 mW Dimensions HWD 5 81 2 13 8 in 128 215 35 mm Weight with batte...

Page 36: ...ect during the warranty period take the product and the RadioShack sales receipt as proof of purchase date to any RadioShack store RadioShack will at its option unless otherwise provided by law a corr...

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