Tamron IC-R10 instruction manual Operating Theory

TABLE OF CONTENTS
	■General	51
	■Memory channel edit	51
	■Program scan channel edit	55
	■EASY mode channel edit	55
	■Program scan or EASY mode channel edit	57
9	SET MODE	59 – 62
	■General	62
10	OTHER FUNCTIONS	63 – 71
	■Low battery indicator	63
	■AFC function	63
	■Monitor function	64
	■Lock function	64
	■ATT function	65
	■NB/ANL function	65
	■Sleep timer	66
	■User TS setting	66
	■Memory search function	67
	■Auto mode and TS function	69
	■Resetting the CPU	70
	■Data cloning	71
11	ALPHANUMERIC KEY ASSIGNMENT	72
12	CONTROL COMMANDS	73 – 74
	■General	73
	■Data format	73
	■Command table	73
13	TROUBLESHOOTING	75 – 76
14	SPECIFICATIONS	77
15	OPTIONS	78

OPERATING THEORY

Electromagnetic radiation which has frequencies of 20,000 Hz (20 kHz*) and above is called radio frequency (RF) energy because it is useful in radio transmissions. The IC-R10 re- ceives RF energy from 0.5 MHz to 1300 MHz* and converts it into audio frequency (AF) energy which in turn actuates a loudspeaker to create sound waves. AF energy is in the range of 20 to 20,000 Hz.

*kHz is an abbreviation of kilohertz or 1000 hertz, MHz is abbreviation of megahertz or 1,000,000 hertz, where hertz is a unit of frequency.

OPERATING NOTES

The IC-R10 may receives its own oscillated frequency, result- ing in no reception or only noise reception, on some frequen- cies.

The IC-R10 may receive interference from extremely strong signals on different frequencies or when using an external high-gain antenna.

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