Shortwave Bands; Day Bands / Night Bands - Eton S350 Operación Manual

22

SHORTWAVE BANDS

BAND MEGAHERTZ (MHz)
(as on some radios)
120 meters 2,300-2,500 MHz
90 meters 3,20-3,40 MHz
75 meters 3,90-4,00 MHz
60 meters 4,750-5,060 MHz
49 meters 5,950-6,20 MHz
41 meters 7,10-7,60 MHz
31 meters 9,20-9,90 MHz
25 meters 11,600-12,200 MHz
22 meters 13,570-13,870 MHz
19 meters 15,10-15,80 MHz
16 meters 17,480-17,90 MHz
13 meters 21,450-21,850 MHz
11 meters 25,60-26,10 MHz
10 meters 26,965-27,41 MHz
also called 'citizens band' or CB
22
KILOHERTZ (KHz) S350
(as on the model S350) switch setting
2300- 2500 KHz SW1
3200-3400 KHz SW1
3900-4000 KHz SW1
4750-5060 KHz SW1
5950-6200 KHz SW1
7100-7600 KHz SW1
9500-9900 KHz SW2
11600-12100 KHz SW2
13570-13870 KHz SW2
15100-15800 KHz SW2
17480-17900 KHz SW3
21450-21850 KHz SW3
25600-26100 KHz SW3
26965-27410 KHz SW3
23

DAY BANDS / NIGHT BANDS

D AY B A N D S / N I G H T B A N D S –
T H E D I F F E R E N C E I S V E RY
I M P O R TA N T
Because shortwave signals depend on such fac-
tors as the sun, the ionosphere and interaction
with the earth itself, signals cannot be heard on
all bands throughout the day. Some bands are
best during the daylight hours, and some are best
at night. Here are some good 'rules of thumb'.
• In general, the bands with frequencies
below 13000 KHz are better at night and the
bands with frequencies above 13000 KHz are
best during the day. This guideline is not 'cast
in concrete' but is a useful general rule of
thumb.
• Around sunrise and sunset, both the day
and night bands might be good, sometimes
exceptionally good.
S 3 5 0 O P E R A T I O N M A N U A L
• In the summer time, the day bands often are
good into the early night.
• While most shortwave stations are found
within the frequency limits of these defined
bands, some are found outside of them. It
pays to take the time to tune in-between
bands too.
• These guidelines can be used worldwide and
are not dependent on location.
Listed on the next page are the characteristics of
the major shortwave bands. Follow these guide-
lines for best listening results.
23