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-3118V SM R 1.1 SMARTRUNK SYSTEMS, INC.
14
Please be sure you turn the radio on
before continue with this alignment
procedure.
5.5. MAIN RADIO ALIGNMENT
Before setup any parameter, run
SDR programming software then
select Radio Alignment from top bar
menu.
A complementary message will be
displayed on the time the software
detects the radio connected to USB
port on the computer.
If the radio isn’t connected, then the
program will be timed out after 20
seconds.
As soon as the radio is detected,
actual radio parameters are loaded.
Once the radio is connected, a new
screen pops up showing all
alignment parameters. The
software downloads actual
alignment parameters stored into
radio memory, so the information
displayed on each alignment step is
the real value form the previous
alignment.
The radio also stores in a special
memory area, original values
assigned in factory. You can go
back to those values anytime for
any particular alignment step.
In case the radio is password
protected, dealer password is
required to access to this alignment
menu.
At any time, press to end
the alignment procedure then the
radio will returns to alignment
menu.
For any transmit related alignment
parameter, low power will be used.
5.6. TRANSMITTER ALIGNMENT:
7.5V Power Supply
PC compatible
On Line Wattimeter
30dB pad
Deviation Meter
Frequency Counter
Figure 9s: Transmitter Alignment Instruments
Connection
13.8Vdc Power Supply
Figure 7: Accessing to the Alignment Menu
Figure 8: Connecting to the Alignment Mode