Operating instructions

RF Technology R50 Page 3
7.2 PHYSICAL C
ONFIGURATION
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 18
7.4 ELECTRICAL S
PECIFICATIONS
18
7.4.1 Power Requirements 18
7.4.2 Frequency Range and Channel Spacing 18
7.4.3 Frequency Synthesizer Step Size 18
7.4.4 Frequency Stability 19
7.4.5 Number of Channels 19
7.4.6 RF Input Impedance 19
7.4.7 IF Frequencies 19
7.4.8 Sensitivity 19
7.4.9 Selectivity 19
7.4.10 Spurious and Image Rejection 19
7.4.11 Intermodulation 19
7.4.12 Modulation Acceptance BW 19
7.4.13 Noise Squelch 19
7.4.14 Carrier Level Squelch 19
7.4.15 Receiver Frequency Spread 20
7.4.16 Receiver Conducted Spurious Emission 20
7.4.17 Audio Frequency Response 20
7.4.18 Audio Output Level 20
7.4.19 Audio Distortion 20
7.4.20 Channel Select Input/Output 20
7.4.21 Carrier Operated Switch (COS) Output 21
7.4.22 COS Output Current Source/Sink, Collector Voltage 21
7.4.23 CTCSS 21
7.4.24 DCS 21
7.4.25 External Squelch Input 21
7.5 CONNECTORS 22
7.5.1 Antenna Connector 22
7.5.2 Power & I/O Connector 22
7.5.3 Test Connector 22
Appendix A EIA CTCSS Tone Frequencies 28
Appendix B Parts List 29
Appendix C Engineering Diagrams
C.1 Block Diagram
C.2 Circuit Diagrams
C.3 Component Overlay Diagrams