User Manual

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RF Technology R220 Page 3

CONTENTS CONTENTS

7 Specifications 18

7.1 General Description 18

7.1.1 Channel Capacity 18

7.1.2 CTCSS 18

7.1.3 Channel Programming 18

7.1.4 Channel Selection 19

7.1.5 Microprocessor 19

7.2 Physical Configuration 19

7.3 Front Panel Controls, Indicators and Test Points 19

7.3.1 Controls 19

7.3.2 Indicators 19

7.3.3 Test Points 20

7.4 Electrical Specifications 20

7.4.1 Power Requirements 20

7.4.2 Frequency Range and Channel Spacing 20

7.4.3 Frequency Synthesizer Step Size 20

7.4.4 Frequency Stability 20

7.4.5 Nominal Antenna Impedance 20

7.4.6 IF Frequencies 21

7.4.7 Sensitivity 21

7.4.8 Selectivity 21

7.4.9 Spurious and Image Rejection 21

7.4.10 Intermodulation 21

7.4.11 Modulation Acceptance BW 21

7.4.12 Noise Squelch 21

7.4.13 Carrier Level Squelch 22

7.4.14 Receiver Frequency Spread 22

7.4.15 Receiver Conducted Spurious Emissions 22

7.4.16 Audio Frequency Response 22

7.4.17 Audio Output Level 22

7.4.18 Audio Distortion 22

7.4.19 Channel Select Input/Output 22

7.4.20 Carrier Operated Switch Output 23

7.4.21 CTCSS 23

7.4.22 External Squelch Input 25

7.5 Connectors 25

7.5.1 Antenna Connector 25

7.5.2 Power and I/O Connector 25

7.5.3 Test Connector 25