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R220
RF Technology R220 Receiver Maintenance Manuals
Manuals and User Guides for RF Technology R220 Receiver Maintenance. We have
1
RF Technology R220 Receiver Maintenance manual available for free PDF download: Operation And Maintenance Manual
RF Technology R220 Operation And Maintenance Manual (32 pages)
Brand:
RF Technology
| Category:
Receiver
| Size: 0.21 MB
Table of Contents
Table of Contents
2
Operating Instructions
5
Front Panel Controls and Indicators
5
Mon. Volume
5
Mon. Sq
5
Line
6
Pwr Led
6
Sq Led
6
Alarm LED
7
Receiver Internal Jumper Options
7
JP1: 240Hz Notch Filter
7
JP2: Audio Response
8
JP3: Audio Filter In/Out
8
JP4: 600 Ω Line DC Loop COS
8
JP6: COS Polarity
8
JP7/8/9: DC Loop COS Configuration
8
JP7, JP8, JP9: Direct Output COS
9
JP11 EPROM Type
9
Receiver I/O Connections
11
Pin Connector
11
Channel and Tone Frequency Programming
12
Circuit Description
12
RF Section
12
IF Section
12
VCO Section
13
PLL Section
13
Audio Signal Processing
14
Noise Filter, Amplifier and Detector
14
Subtone Filter and CTCSS
14
External Squelch
15
Microprocessor Controller
15
Carrier Operated Switch
15
Voltage Regulator
16
Alignment Procedure
16
Standard Input Signal
16
RF Alignment
16
IF Alignment
17
Line Level Adjustment
18
Reference Oscillator Calibration
18
Specifications
18
General Description
18
Channel Capacity
18
Ctcss
18
Channel Programming
18
Channel Selection
19
Microprocessor
19
Physical Configuration
19
Front Panel Controls, Indicators and Test Points
19
Controls
19
Indicators
19
Test Points
20
Electrical Specifications
20
Power Requirements
20
Frequency Range and Channel Spacing
20
Frequency Synthesizer Step Size
20
Frequency Stability
20
Nominal Antenna Impedance
20
IF Frequencies
21
Sensitivity
21
Selectivity
21
Spurious and Image Rejection
21
Intermodulation
21
Modulation Acceptance BW
21
Noise Squelch
21
Carrier Level Squelch
22
Receiver Frequency Spread
22
Receiver Conducted Spurious Emissions
22
Audio Frequency Response
22
Audio Output Level
22
Audio Distortion
22
Channel Select Input/Output
22
Carrier Operated Switch Output
23
Ctcss
23
External Squelch Input
25
Connectors
25
Antenna Connector
25
Power and I/O Connector
25
Test Connector
25
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