manualshive.com logo in svg

Radio Shack DX-402, Руководство пользователя, Страница: 30 / 36

Поделиться
Скачать
Radio Shack DX-402 Скачать руководство пользователя страница 30

30

Troubleshooting

Amateur Shortwave Bands (in MHz)

ˆ

Troubleshooting

We do not expect you to have any problems with your receiver, but if you have a
problem, the information in this chart might help. If the problem persists, take the
receiver to your local RadioShack store for assistance.

3.500 – 4.000 

80 Meters

7.000 

–

 7.300 

40 Meters

10.100 – 10.150 

30 Meters

14.0 

–

 14.350 

20 Meters

18.068

–

 18.168 

17 Meters

21.000 

–

 21.450 

15 Meters

24.890

–

 24.990 

12 Meters

28.000 

–

 29.700 

10 Meters

Problem

Possible Cause

Suggestion

Weak or intermittent 
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.

The signal is blocked by 
metal or concrete.

Move the receiver near a win-
dow when you use it inside a 
vehicle or metal-frame building.

The frequency is not tuned 
properly.

Fine-tune the frequency.
See “Tuning” on Page 13. 

Scanning stops on a 
frequency that has an 
unclear transmission.

The frequency is not tuned 
properly.

Fine-tune the frequency. 
See “Tuning” on Page 13. 

The frequency is one of 
the receiver’s birdie fre-
quencies.

Tune another frequency. 
See “Birdies” on Page 29.

20-230.fm  Page 30  Friday, March 24, 2000  9:07 AM

Содержание DX-402

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Отзывы:

Нет отзывов