Crystal DB477C User Manual
DB477C
1
Version 3
Thank you for choosing this vehicle transceiver,
always strives to provide high quality products, And this transceiver is
no exception. As you learn how to use this transceiver, you will nd that
your unit is very user friendly. For example, each time you
select a menu item, you will see a text message on the display that lets
you know what you are conguring.
Though it is user friendly, this transceiver is technically complicated
and some features may be new to you. Consider this manual to be a
personal tutorial from the designers, allow the manual to guide you
through the learning process now, then act as a reference in the coming
years.
2
Precautions
Please observe the following precautions to prevent re, personal injury,
or transceiver damage:
Do not attempt to configure your transceiver while driving, it is
dangerous.
This transceiver is designed for a 13.8V DC power supply. Don't use
a 24V battery to power on the transceiver.
Do not place the transceiver in excessively dusty, humid or wet
areas, nor unstable surfaces.
Please keep it away from interferential
devices (such as TV, generator etc.).
Do not expose the transceiver to long
periods of direct sunlight nor place it close
to heating appliances.
If an abnormal odor or smoke is detected
coming from the transceiver, turn OFF
the power immediately. Contact a Crystal
service agent or your dealer.
CONTENTS
New and Innovative Features .............................................. 5
Supplied Accessories/Optional Accessories .....................6
Supplied Accessories ....................................................................... 6
Initial Installation ..................................................................7
Mobile Installation ............................................................................ 7
DC Power Cable Connection ........................................................... 8
Power Supply Voltage Display .........................................................10
Antenna Connection ........................................................................10
Accessories Connections .................................................................11
Getting Acquainted ..............................................................12
Front panel ....................................................................................... 12
Rear panel .......................................................................................13
Display ............................................................................................. 13
Microphone ...................................................................................... 14
Amateur Transceiver Mode
Basic Operations ................................................................. 16
Switching the Power On/Off ............................................................ 16
Adjusting the Volume ......................................................................16
Switch between VFO and Channel mode ....................................... 16
Adjusting Frequency/Channel Through Selector Knob .................... 16
Receiving ......................................................................................... 16
Transmitting .....................................................................................16
Transmitting Tone-Pulse .................................................................. 17
Transmitting Optional Signaling ......................................................17
Channel Edit ....................................................................................17
...................................................... 15
Channel Delete ................................................................................ 17
Shortcut Operations ............................................................. 18
Squelch Off/Squelch Off Momentary................................................18
Squelch Level Setup ........................................................................ 18
Frequency/Channel Scan ................................................................18
Channel Scan ..................................................................................18
CTCSS/DCS Encode and Decode Setup ........................................ 18
CTCSS Scan ....................................................................................19
DCS Scan ........................................................................................ 19
Compander (Decrease the background noise and enhance audio
clarity .................................................................................................. 19
Keypad Lockout ............................................................................... 20
Current Voltage Enquiry ...................................................................20
Auto-Dialer Setup .............................................................................20
Transmitting Edited DTMF Tones in the Auto-dialer Memory ...........20
General Setting ..................................................................... 21
DTMF, DTMF ANI, 2Tone or 5Tone Signaling ..................................21
Sending 2-Tone Call .........................................................................21
Sending 5-Tone Call .........................................................................22
Sending DTMF call ..........................................................................22
Signaling Combination Setup ...........................................................22
TX OFF Setup .................................................................................. 23
Busy Channel Lockout ..................................................................... 23
Editing Channel Name ..................................................................... 23
Reverse TX/RX ................................................................................23
3
Talk Around ......................................................................................24
Voice Compander
Scrambler Setup (Encryption)
Radio's DTMF SELF ID ENQUIRY
Voice Prompt ....................................................................................25
TOT (Time-out timer)
APO (Auto power off)
DTMF Transmitting Time
Squelch Level Setup
Scan Dwell Time Setup
LCD Backlight
Pilot Frequency
Display Mode Setup
4
PIN Setup
Address List
Factory Default
...........................................................................24
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.................................................................................28
Microphone Operation .........................................................29
Function Setup By Microphone Keypad ...........................................29
Squelch Level
Optional Signaling
Scan Skip
Frequency/Channel Scan
Busy Channel Lockout
Reverse TX/RX
..................................................................................29
........................................................................... 29
........................................................................................ 30
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CONTENTS
TOT (Time-out timer)
CTCSS/DCS Encode and Decode
Talk Around
Voice Prompt
LCD Backlight
Long-distance Anti-theft Alarm .......................................... 32
Cable Clone
Maintenance
Default Setting after Resetting ......................................................... 33
Trouble Shooting
Specications .......................................................................33
Attached Chart
50 groups CTCSS Tone Frequency(Hz) ..........................................34
1024 groups DCS Code.
Australian Broardcasting Requirements ...........................36
Transmit and Receive Procedure. ...................................................36
Radio Operation and EME Exposure.
Electromagnetic Interference/Compatibility.
Aircraft.
Medical Devices
General warnings.
Transmitting
Call Ring Tone
Roger Beep
Duplex Operation Via Repeaters and Licence information...............38
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New and Innovative Features
DB477C Mobile Radio has a stylish and sturdy housing, advanced and reliable functions and is especially designed for drivers while pusuing the
company philosophy of innovation and practicality. More functions as follows:
Display on a large LCD with adjustable brightness, convenient
for night-time use..
Buttons are distributed reasonably for convenient operation.
Using superior quality material, better technology and high
quality heatsink to ensure stable and durable operation.
Programming different CTCSS, DCS, 2Tone, 5Tone in per
channel, rejecting extra calling from other radios.
Various scan functions including CTCSS/DCS Scan function.
Using 5Tone to send Message, Emergency alarm, Call all, ANI,
Remotely kill, Remotely Waken, etc.
Automatic calling Identication function by DTMF--ANI or 5Tone-
-ANI .
Scramble function (Optional).
Compander function for decrease the background noise and
enhance audio clarity, it can set compander ON/OFF per
channel.
Theft alarm provides extra safety.
5
Supplied Accessories/Optional Accessories
Supplied Accessories
After carefully unpacking the transceiver, identify the items listed in the
table below. We suggest you keep the box and packaging.
Transceiver
Mobile Mounting
Bracket (QMB-01)
6
Microphone (QHM-03)
(with DTMF keyboard)
DC Power Cable with
Fuse Holder(QPL-01)
User Manual
Hardware Kit for Bracket
Spare Fuses
[QF-01]
(one pair)
Black screws
(M4X8mm)
4PCS(QSS-01A)
Tapping screws
(M5X8mm)
4PCS(QSS-01B)
S-Washer
(QSS-01D)
Mobile installation
To install the transceiver, select a safe, convenient location inside your
vehicle that minimizes danger to your passengers and yourself while the
vehicle is in motion. Consider installing the unit at an appropriate position
so that knees or legs will not strike it during sudden braking of your
vehicle. Try to pick a well ventilated location that is shielded from direct
sunlight.
Install the mounting bracket in the vehicle using the supplied self-
1.
tapping screws (4pcs) and at washers (4pcs).
Car body
Washer (M5)
Tapping screw
(M5x20mm)
Initial Installation
Determine the appropriate angle of the transceiver, using the 3 screw
hole positions on the side of the mounting bracket.
Mounting bracket
Position the transceiver, then insert and tighten the supplied
2.
hexagon SEMS screws.
Double check that all screws are tightened to prevent vehicle
vibration from loosening the bracket or transceiver.
7
Initial Installation
DC Power Cable Connection
Locate the power input connector as close to the transceiver as possible.
Mobile Operation
The vehicle battery must have a nominal rating of 12V. Never
connect the transceiver to a 24V battery. Be sure to use a 12V
vehicle battery that has sufficient current capacity. If the current
to the transceiver is insufficient, the display may darken during
transmission, or transmitting output power may drop excessively.
Route the DC power cable supplied with the transceiver directly
1.
to the vehicle's battery terminals using the shortest path from the
transceiver.
We recommend you do not use the cigarette lighter socket as some
cigarette lighter sockets introduce an unacceptable voltage drop.
The entire length of the cable must be dressed so it is isolated from
8
heat, moisture, and the engine secondary (high voltage) ignition
system/ cables.
After installing cable, in order to avoid the risk of damp, please
2.
use heat-resistant tap to tie together with fuse box. Don't forget to
reinforce whole cable.
In order to avoid the risk of short circuit, please remove negative (-)
3.
terminal of battery, then connect with radio.
Confirm the correct polarity of the connections, then attach the
4.
power cable to the battery terminals; red connects to the positive (+)
terminal and black connects to the negative (-) terminal.
Use the full length of the cable without cutting off excess even if the
cable is longer than required. In particular, never remove the fuse
holders from the cable.
Reconnect any wiring removed from the negative terminal.
5.
Red
Black
Connect the DC power cable to the transceiver's power supply
6.
connector.
Press the connectors rmly together until the locking tab clicks.
If the ignition-key on/off feature is desired (optional feature), use the
DC power cable
Ext. Power jack
optional 12V Plug cable. Connect one of the cables between the ACC
terminal or a 12v Plug that operates with the vehicle ignition or ACC
switch on the vehicle and EXT POWER jack on the rear side of the
unit.
In some cars,the 12V plug is always powered. If this is the case, you cannot
use it for the ignition key on/off function.
When the ignition key is turned to ACC or ON(Start) position with
7.
the radio turned off, the power switch illuminates. The illumination
will be turned off when the ignition key is turned to the off position.
To turn on the unit, press the power switch manually while it is
illuminated. (While ignition key is at ACC or ON position)
When the ignition key is turned to ACC or ON position with the
8.
radio's power switch on, the unit turns on automatically and the
power switch will be lit. Turn the ignition key to OFF position or
manually turn the power switch off to shut down the radio.
Using extra cable, power consumption:5MAH.
9.
Without this function, user can turn on/off radio by Power knob.
10.
ACC terminal
12V Plug connection
Ext. Power jack
Fixed Station Operation
In order to use this transceiver for fixed station operation, you will
need a separate 13.8V DC power supply (not included), power
supply( QRP-01) as optional accessories. Please contact local dealer
to require.
The recommended current capacity of your power supply is 12A.
Connect the DC power cable to the regulated DC power supply
1.
and ensure that the polarities are correct. (Red: positive, Black:
negative).
Do not directly connect the transceiver to an AC outlet.
Initial Installation
Use the supplied DC power cable to connect the transceiver to a
regulated power supply (not supplied).
Do not substitute a cable with smaller gauge wires.
Regulated
power supply
Regulated power supply
DC power cable with fuse holder (QPL-01)
Connect the transceiver's DC power connector to the connector on
2.
the DC power cable.
Press the connectors rmly together until the locking tab clicks.
Before connecting the DC power to the transceiver, be sure to switch
the transceiver and the DC power supply OFF.
Do not plug the DC power supply into an AC outlet until you make all
connections.
Black
Red
9
Initial Installation
REPLACING FUSES
If the fuse blows, determine the cause, then correct the problem.
After the problem is resolved, replace the fuse. If newly installed fuses
continue to blow, disconnect the power cable and contact your authorized dealer or an authorized service
center for assistance.
Fuse Location Fuse Current Rating
Transceiver 15A
Supplied Accessory DC
power cable
Only use fuses of the specified type and rating, otherwise the
10
transceiver could be damaged.
If you use the transceiver for a long period when the vehicle battery is
not fully charged, or when the engine is OFF, the battery may become
discharged, and will not have sufcient reserves to start the vehicle. Avoid
using the transceiver in these conditions.
20A
Power supply voltage Display
After connecting the transceiver to the power supply, the supply voltage
can be displayed on LCD by pressing the
key.
The display immediately changes as the voltage supply changes, It also
displays voltage during transmission.
The transceiver will return to its normal operation when the power is
switched ON or repeat above operation.
FUN
key together with the
The range of displayed voltage is only from 7V to16V DC, because the
displayed value is estimated, please use a voltmeter when a more precise
Important
reading is desired.
Antenna Connection
Before operating, install an efcient, well-tuned antenna. The success of
your installation will depend largely on the type of antenna and its correct
installation. The transceiver can give excellent results if the antenna
system and its installation are given careful attention.
Use a 50Ω impedance antenna and low-loss coaxial feed-line that
has a characteristic impedance of 50Ω, to match the transceiver input
impedance. Coupling the antenna to the transceiver via feed-lines having
an impedance other than 50Ω reduces the efficiency of the antenna
system and can cause interference to nearby broadcast television
receivers, radio receivers, and other electronic equipment.
Transmitting without first connecting an antenna or other matched
load may damage the transceiver. Always connect the antenna to the
transceiver before transmitting.
All xed stations should be equipped with a lightning arrester to reduce
the risk of re, electric shock, and transceiver damage.
The possible locations of antenna on a car are shown as following:
Initial Installation
Optional Accessory Connections
External Speaker (not included)
If you plan to use an external speaker, choose a speaker with an
impedance of 8Ω. The external speaker jack accepts a 3.5mm (1/8")
mono (2-conductor) plug.
External speaker adopt double port BTL, please care about the connecting
way. The speaker can not connect with the ground, otherwise the speaker
will be fault. The wrong connecting way as the following picture.
Error
Ground
Mute Out
Capable of muting the car stereo when you receive incoming traffic on
the tranceiver. This transceiver has a mute out function allowing you to
hardwire directly to a compatable head unit with existing mute functionality.
Microphone
For voice communications, connect a microphone equipped with an
8-pin modular plug into the modular socket on the front of the main
unit. Press rmly on the plug until the locking tab clicks. Attach the
supplied microphone hanger in an appropriate location using the
screws included in the screw set.
Microphone
connector
Microphone [QHM-03]
External speaker (not included)
Antenna
(not included)
11
Getting Acquainted
Front panel
Basic Functions
NO. KEY FUNCTION
Pow(Power) Power on/Off
1
12
VOL Adjust Volume Key
2
Main Dial
3
FUN/SET Function Key
4
V/M/MW
5
MHz/SHIFT Step Size Key ( step:1MHz)
6
TS/DCS/LOCK Sets CTCSS and DCS value
7
CAL/H/L Call key
8
SQL/D Squelch off
9
Data Terminal
10
TX lights during Transmitting
11
Mic.connector Microphone connection port
12
Change frequency, memory channel and scan
direction etc.
Switches between VFO mode and Channel
mode
Data and Cloning port
Press key until icon appears then press the following
key.
NO. KEY FUNCTION
FUN/SET Conrms the selective functions and exit
4
V/M/MW Stores data into channels
5
TS/DCS/LOCK Sets Keypad lock function
7
SQL/D Compander mode on/off
9
Press key and following key together to activate
following function:
NO. KEY FUNCTION
Pow(Power)
1
V/M/MW Erase the memory
5
TS/DCS/LOCK Auto dialer
7
CAL/H/L
8
SQL/D Enters power supply voltage indication mode
9
Reset to factory default settings
Enters clone data function mode
Functions that require continuous pressing following key
to be activated
NO. KEY FUNCTION
FUN/SET
4
SQL/D Monitor mode
9
Press and hold for 2s to enter the Setting
mode
Getting Acquainted
Rear panel
21
NO. KEY FUNCTION
Terminal for connecting optional cable QCC01 for
Ext. Power
1
Jack
use with ignition key On/Off function.
The radio will auto power on when car is driving.
The radio will auto power off when car stops.
Ext.Speaker
2
Terminal
Antenna
3
Connector
Terminal for optional external speaker SP01
Connection for 50Ω coaxial cable and antenna.
DISPLAY
19
1
2
14
15
13
NO. KEY FUNCTION
SQL
3
1
2
M
3
Decimal point
4
Decimal point
5
6
7
8
9
10
DCS
11
12
_
+
13
14
A
15
13
12
10
11
9
8
19
Squelch level.
In channel mode.
Indicates the channel number in channel mode.
Channel skip.
Indicates the decimal point of frequency and the
scanning function.
Indicates the frequency or memory name.
Signal is being received or monitor.
Signal strength of receiving and transmitting.
Compander.
Keypad lock .
Set DCS function.
Set CTCSS function.
Offset frequency direction.
Scramble.
Auto power off.
Pressing key.
13
4
3
5
6
7
Getting Acquainted
microphone
NO. KEY FUNCTION
UP Increase frequency, channel number or setting value.
1
14
DOWN Decrease frequency, channel number or setting value.
2
PTT Press the PTT (Push-TO-Talk) key to transmit.
3
Number Key Input VFO frequency or DTMF dial out etc..
4
DTMF ON/
5
OFF
LOCK Switch
6
MIC Speak here during transmission.
7
Switches between DTMF dialing or function operating.
Locks out the UP、Down、Numerical keys and Function
keys.
MIC Connector Diagram(in the front view of connector)
KeyPadSerialData
+5V
DOWN
UP
MICGND
MIC
PTT
GND
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