BIRDIES

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