Radio Shack PRO-71 - Manual (Page 30)

30
A GENERAL GUIDE TO SCANNING
Reception of the frequencies covered by your scanner is mainly “line-
of-sight.” That means you usually cannot hear stations that are beyond
the horizon.
During the summer months, you might be able to hear stations in the
30–50 MHz range located several hundred or even thousands of miles
away. This is because of summer atmospheric conditions. This type of
reception is unpredictable but often very interesting!
GUIDE TO FREQUENCIES
Weather Frequencies
*These frequencies are not preprogrammed in this scanner, but you
can manually program them.
Ham Radio Frequencies
Ham radio operators often broadcast emergency information when oth-
er means of communication break down. The following chart shows the
frequencies this scanner receives that Hams normally use:
Note: Your scanner cannot receive some types of transmissions on
these bands.
National
162.400 162.425 162.440* 162.450
162.475 162.500 162.525 162.550
Canadian
161.650* 161.775* 163.275*
Wavelength (meters) Frequency (MHz)
10-meter 29.000–29.700
6-meter 50.000–54.000
2-meter 144.000–148.000
70-meter 420.000–450.000
20-311a.fm Page 30 Friday, February 12, 1999 4:51 PM