Radio Shack DX-350 Owner'S Manual Download Page 10

10

LISTENING GUIDE

Worldwide, there are thousands of shortwave listeners. The short-
wave hobby can be very exciting. Newscasts of a country where
important events are taking place give you a sense of immediacy
and participation that reports on local stations cannot deliver.

Being a shortwave listener requires no special knowledge. Random
tuning is a good way to become acquainted with various bands and
stations. But as you gain expertise, you will probably acquire spe-
cial listening techniques.

BAND ALLOCATION

Certain portions of the radio frequency spectrum are set aside for
specific purposes. Each range of frequencies is called a radio band.
See “Specifications” on Page 15 for the band frequencies. The fol-
lowing sections list some of the most interesting band allocations.

Ham Radio Frequencies

Ham radio operators often broadcast emergency information when
other means of communication break down. They use Morse code
(called continuous wave) and single sideband. The following chart
shows the continuous wave frequencies you can receive on the
DX-350. The DX-350 cannot receive single sideband signals. 

3,500–3,800 kHz

7,000–7,150 kHz

14,000–14,200 kHz

21,000–21,250 kHz

28,000–28,500 kHz

20-209A.fm  Page 10  Wednesday, August 4, 1999  8:36 AM

Summary of Contents for DX-350

Page 1: ...Cat No 20 209A OWNER S MANUAL Please read before using this equipment DX 350 AM FM LW SW1 9 12 Band Portable Receiver 20 209A fm Page 1 Wednesday August 4 1999 8 36 AM...

Page 2: ...y power To get the most enjoyment from your receiver take a few minutes to com pletely read this manual before using the DX 350 FCC NOTICE Your receiver might cause radio or TV interference even when...

Page 3: ...e Receiver 7 Adjusting the Antennas 7 Using Headphones 8 Listening Safely 8 Traffic Safety 9 Listening Guide 10 Band Allocation 10 Ham Radio Frequencies 10 Time Standard Frequencies 11 International R...

Page 4: ...to power your receiver For the best results we recommend alkaline batteries such as Ra dioShack Cat No 23 552 Cautions Use only fresh batteries of the required size and recommended type Do not mix old...

Page 5: ...rom standard AC power with an AC adapter such as Cat No 273 1454 not supplied Insert the adapter s small connector into the receiver s DC 6V jack Then plug the adapter into a standard AC outlet Intern...

Page 6: ...into the vehicle s cigarette lighter socket Internal batteries automatically disconnect Cautions The recommended adapter supplies 6 volts DC and delivers at least 300 milliamps with its center tip se...

Page 7: ...hen a station is tuned properly 4 Set VOLUME to a comfortable listening level ADJUSTING THE ANTENNAS For the best reception adjust the antenna according to this chart Band Frequency Range Antenna AM 5...

Page 8: ...e Listening Safely To protect your hearing follow these guidelines when you use headphones Set the volume to the lowest setting before you begin listening After you begin listening adjust the volume t...

Page 9: ...zard and could be illegal in some areas If you use headphones with your receiver while riding a bicycle be very careful Do not listen to a continuous broadcast Even though some earphones headphones le...

Page 10: ...rtions of the radio frequency spectrum are set aside for specific purposes Each range of frequencies is called a radio band See Specifications on Page 15 for the band frequencies The fol lowing sectio...

Page 11: ...ands You can hear these most often during the evening hours between 6 00 PM and midnight your time Programming often in English usually contains news commentaries music and special features reflecting...

Page 12: ...find your way around interna tional broadcasts it is helpful to be able to convert frequencies from MHz to kHz kHz to MHz and MHz to meters 1 MHz million 1 000 kHz thousand To convert MHz to kHz multi...

Page 13: ...a ture environments High temperatures can shorten the life of electronic devices damage batteries and distort or melt plastic parts Handle the DX 350 gently and carefully Dropping it can damage circui...

Page 14: ...ectronic cir cuits Modifying or tampering with the DX 350 s internal components can cause a malfunction and might invalidate the it s warranty and void your FCC authorization to use it If your DX 350...

Page 15: ...SW9 11 m 25 67 26 10 MHz Sensitivity Max for 50 mW output 8 Ohm 631 V at 1 000 kHz Usable sensitivity for 20 dB S N 1 000 V at 1 000 kHz Speaker 2 5 Inch 8 Ohm 0 5 Watt Output Power 200 mW 8 Ohm 10 TH...

Page 16: ...arranty 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 correct the de fect...

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