Radio-shack 20-404 User Manual download pdf (Page 4)

Features

which is grouped with other channels in a channel-

storage bank. You can then scan the channel-storage

banks to see if there is activity on the frequencies stored

there. Each time the scanner ﬁnds an active frequency, it

stays on that channel until the transmission ends.

Channel Storage Banks

To make it easier to identify and select the channels you

want to listen to, your scanner divides the channels into

10 banks (1 to 10) with 20 channels each, for a total of

200 channels. You can use each channel-storage bank

to group frequencies, such as those used by the police

department, ﬁre department, ambulance services, or

aircraft.

For example, you could program the frequencies used

by your local police department starting with Channel

1 (the ﬁrst channel in bank 1) and program the ﬁre

department frequencies starting with Channel 21 (the

ﬁrst channel in bank 2).

Service Banks

The scanner is preprogrammed with the frequencies

allocated to marine, ﬁre/police, aircraft, ham radio, and

weather services. This is handy for quickly ﬁnding active

frequencies instead of searching through an entire bank

(see “Service Bank Search” on page 22).

Preprogrammed Service Bank

Frequencies

Marine Service Bank

Channel Frequency

(MHz)

Channel Frequency

(MHz)

01 156.0500 63 156.1750

02 156.2500 64 156.2250

06 156.3000 160.8250

07 156.3500 65 156.2750

08 156.4000 66 156.3250

09 156.4500 67 156.3750

10 156.5000 68 156.4250

Channel Frequency

(MHz)

Channel Frequency

(MHz)

11 156.5500 69 156.4750

12 156.6000 70 156.5250

13 156.6500 71 156.5750

14 156.7000 72 156.6250

15 156.7500 73 156.6750

16 156.8000 74 156.7250

17 156.8500 77 156.8750

18 156.9000 78 156.9250

19 156.9500 79 156.9750

20 157.0000 80 157.0250

161.6000 81 157.0750

21 157.0500 82 157.1250

22 157.1000 83 157.1750

23 157.1500 84 157.2250

24 157.2000 161.8250

161.8000 85 157.2750

25 157.2500 161.8750

161.8500 86 157.3250

26 157.3000 161.9250

161.9000 87 157.3750

27 157.3500 161.9750

161.9500 88 157.4250

28 157.4000

162.0000

n Note: Both frequencies (transmission and reception)

are shown for marine channels used for duplex

transmission.

1 2 3 4 5 ... 21

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Radio-shack 20-404 User Manual Page 4

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