User's Manual
Table Of Contents
- 4. - ST-3118 RF DESCRIPTION
- 4.1. Circuit Configuration
- 4.2. Receiver System
- 4.2.1. Front-end RF Receiver
- 4.2.2. ANALOG Audio Processing
- 4.2.3. Virtual Squelch Circuit
- 4.2.4. Virtual VOLUME CONTROL
- 4.2.5. Sub audio signaling
- 4.2.6. ANALOG AUDIBLE SIGNALING
- 4.2.7. DIGITAL AUDIO PROCESSING
- 4.3. Transmitter System
- 4.3.1. ANALOG TX SIGNAL
- 4.3.2. DIGITAL TX AUDIO:
- 4.3.3. Drive and Final Amplifier Stages
- 4.3.4. Automatic Transmit Power Control
- 5. ST-3118 ALIGNMENT
- 5.1. Introduction
- 5.2. ALIGNMENT:
- 5.3. Required Test Equipment
- 5.4. Alignment Procedure
- 5.4.1. GENERAL ALIGNMENT CONSIDERATIONS:
- 5.5. MAIN RADIO ALIGNMENT
- 5.6. TRANSMITTER ALIGNMENT:
- 5.6.1. Main Clock alignment:
- 5.6.2. Transmit Power alignment:
- 5.6.2.1. High POWER LEVEL ALIGNMENT
- 5.6.2.2. Mid POWER LEVEL ALIGNMENT
- 5.6.2.3. LOW POWER LEVEL ALIGNMENT
- 5.6.3. ANALOG MAXIMUM DEVIATION
- 5.6.4. Modulation Gain alignment:
- 5.6.5. FDMA DATA MODULATION alignment:
- 5.6.6. TDMA DATA MODULATION alignment:
- 5.6.7. EIA tones Level Alignment:
- 5.6.8. DTMF signaling level alignment:
- 5.6.9. DCS signaling alignment:
- 5.6.10. CTCSS signaling alignment
- 5.6.11. FSK signaling alignment:
- 5.7. RECEIVER ALIGNMENT
- 5.7.1. DISCRIMINATOR GAIN
- 6. COMPLIMENTARY USER ALIGNMENT
- 6.1. OPTION ALIGNMENT:
- 6.1.1. ANALOG Microphone gain:
- 6.1.2. ANALOG External Mic Gain:
- 6.1.3. Analog AGC
- 6.1.4. DIGITAL AGC
- 6.1.5. MINIMUM VOLUME LEVEL:
- 6.1.6. SQUELCH LEVEL:
- 6.1.7. DISABLE RF POWER
- 7. RADIO APPEARANCE ALIGNMENT
- 7.1. DISPLAYS AND LEDS:
- 7.1.1. Auto backlight delay alignment:
- 7.1.2. Power on Text:
- 7.1.3. Leds:
- 7.2. Tones
- 7.3. ANNUNCIATION
ST-3118C SM R 1.1 SMARTRUNK SYSTEMS, INC.
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5.6.2.1. High POWER LEVEL ALIGNMENT ..................................................................................... 16
5.6.2.2. Mid POWER LEVEL ALIGNMENT ...................................................................................... 17
5.6.2.3. LOW POWER LEVEL ALIGNMENT .................................................................................... 17
5.6.3. ANALOG MAXIMUM DEVIATION ........................................................................................ 17
5.6.4. Modulation Gain alignment: ............................................................................................... 18
5.6.5. FDMA DATA MODULATION alignment: .............................................................................. 18
5.6.6. TDMA DATA MODULATION alignment: .............................................................................. 19
5.6.7. EIA tones Level Alignment: ................................................................................................. 19
5.6.8. DTMF signaling level alignment: ......................................................................................... 20
5.6.9. DCS signaling alignment: ..................................................................................................... 20
5.6.10. CTCSS signaling alignment .................................................................................................. 21
5.6.11. FSK signaling alignment: ..................................................................................................... 21
5.7. RECEIVER ALIGNMENT ............................................................................................................ 23
5.7.1. DISCRIMINATOR GAIN ......................................................................................................... 23
6. COMPLIMENTARY USER ALIGNMENT ......................................................................................... 24
6.1. OPTION ALIGNMENT: .............................................................................................................. 24
6.1.1. ANALOG Microphone gain: ................................................................................................. 24
6.1.2. ANALOG External Mic Gain: ................................................................................................ 25
6.1.3. Analog AGC ......................................................................................................................... 25
6.1.4. DIGITAL AGC ........................................................................................................................ 25
6.1.5. MINIMUM VOLUME LEVEL: ................................................................................................ 26
6.1.6. SQUELCH LEVEL: .................................................................................................................. 26
6.1.7. DISABLE RF POWER ............................................................................................................. 27
7. RADIO APPEARANCE ALIGNMENT .............................................................................................. 28
7.1. DISPLAYS AND LEDS: ............................................................................................................... 28
7.1.1. Auto backlight delay alignment: ......................................................................................... 28
7.1.2. Power on Text: .................................................................................................................... 28
7.1.3. Leds: .................................................................................................................................... 28
7.2. Tones ....................................................................................................................................... 28
7.3. ANNUNCIATION ...................................................................................................................... 29
8. ST-3118C MAIN BOARD SCHEMATIC .......................................................................................... 32