Operation and Maintenance Manual

RF Technology T220 Page 3
CONTENTS CONTENTS
7 Specifications 17
7.1 Overall Description 17
7.1.1 Channel Capacity 17
7.1.2 CTCSS 17
7.1.3 Channel Programming 17
7.1.4 Channel Selection 17
7.1.5 Microprossor 18
7.2 Physical Configuration 18
7.3 Front Panel Controls, Indicators and Test Points 18
7.3.1 Controls 18
7.3.2 Indicators 18
7.3.3 Test Points 19
7.4 Electrical Specifications 19
7.4.1 Power Requirements 19
7.4.2 Frequency Range and Channel Spacing 19
7.4.3 Frequency Synthesizer Step Size 19
7.4.4 Frequency Stability 19
7.4.5 Number of Channels 19
7.4.6 Antenna Impedance 19
7.4.7 Output Power 19
7.4.8 Transmit Duty Cycle 20
7.4.9 Spurious and Harmonics 20
7.4.10 Carrier and Modulation Attack Time 20
7.4.11 Modulation 20
7.4.12 Distortion 20
7.4.13 Residual Modulation and Noise 20
7.4.14 600
Ω
Line Input Sensitivity 20
7.4.15 HI-Z Input 20
7.4.16 Test Microphone Input 21
7.4.17 External Tone Input 21
7.4.18 External ALC Input 21
7.4.19 T/R Relay Driver 21
7.4.20 Channel Select Input / Output 21
7.4.21 DC Remote Keying 21
7.4.22 Programmable No-Tone Period 22
7.4.23 Firmware Timers 22
7.4.24 CTCSS 22
7.5 Connectors 22
7.5.1 Antenna Connector 22
Tone Squelch Frequencies 23
7.5.2 Power and I/O Connector 24
7.5.3 Test Connector 24