Radio Shack 20-163 User's Guide download pdf (Page 15)

FM – Frequency Modulation, used for most public safety

transmissions, broadcast, business, and amateur radio

transmissions.

CT – FM transmissions with Continuous Tone Coded Squelch

System (CTCSS)

DC – FM transmissions with Digital Coded Squelch (DCS)

MO – Motorola Trunking System

ED – EDACS Trunking System

LT – LTR Trunking System

If you change the receive mode using MODE key, the scanner

shows the receive mode for small caps (ex. fm, am, ct, or dc). If

you want to change the default setting, press FUNC then press

MODE.

Deﬁning a Channel

Go to www.radioreference.com for the latest frequency references.

To dene a channel:

1. Press MAN.

2. Enter the bank (0-9) and channel number (00-99) where you want

to store the frequency (Example: 101 for Bank 1, Channel 1).

3. Press MAN again. M and the bank and channel number appear.

4. Press PROG. M changes to P.

5. Use the number keys to enter the frequency (including the

decimal point). If you make a mistake, press CL to delete a single

digit or hold CL about 2 seconds to start over.

Your scanner automatically rounds to the nearest valid

frequency. For example, if you enter 151.553, your scanner

rounds to 151.550.

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Radio Shack 20-163 User's Guide Page 15