Page 2
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.
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..
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. DC Power Cable with Fuse Holder(QPL-01) Transceiver Mobile Mounting Bracket (QMB-01) User Manual Microphone (QHM-03) (with DTMF keyboard) Hardware Kit for Bracket Spare Fuses...
Initial Installation Mobile installation Determine the appropriate angle of the transceiver, using the 3 screw hole positions on the side of the mounting bracket. 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.
Initial Installation DC Power Cable Connection Locate the power input connector as close to the transceiver as possible. Mobile Operation Black The vehicle battery must have a nominal rating of 12V. Never connect the transceiver to a 24V battery. Be sure to use a 12V Connect the DC power cable to the transceiver's power supply vehicle battery that has sufficient current capacity.
Page 9
Initial Installation Use the supplied DC power cable to connect the transceiver to a To turn on the unit, press the power switch manually while it is regulated power supply (not supplied). illuminated. (While ignition key is at ACC or ON position) When the ignition key is turned to ACC or ON position with the Do not substitute a cable with smaller gauge wires.
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 autho- rized dealer or an authorized service The range of displayed voltage is only from 7V to16V DC, because the center for assistance.
Initial Installation Optional Accessory Connections Microphone For voice communications, connect a microphone equipped with an External Speaker (not included) 8-pin modular plug into the modular socket on the front of the main If you plan to use an external speaker, choose a speaker with an unit.
Getting Acquainted Front panel Press key until icon appears then press the following key. NO. KEY FUNCTION FUN/SET Confirms the selective functions and exit V/M/MW Stores data into channels TS/DCS/LOCK Sets Keypad lock function SQL/D Compander mode on/off Press key and following key together to activate following function: Basic Functions NO.
Getting Acquainted Rear panel NO. KEY FUNCTION Squelch level. SQL In channel mode. Indicates the channel number in channel mode. Channel skip. Decimal point Indicates the decimal point of frequency and the Decimal point scanning function. Indicates the frequency or memory name. Signal is being received or monitor.
Getting Acquainted microphone MIC Connector Diagram(in the front view of connector) KeyPadSerialData DOWN MICGND NO. KEY FUNCTION Increase frequency, channel number or setting value. DOWN Decrease frequency, channel number or setting value. Press the PTT (Push-TO-Talk) key to transmit. Number Key Input VFO frequency or DTMF dial out etc..
PROFESSIONAL TRANSCEIVER MODE According to practical application, you can set the radio works in C. V F O M o d e ( F r e q u e n c y m o d e ) : Professional Transceiver mode. This mode shows only frequency on There are 2 levels operation menu to set functions as you need.
Basic Operations frequency in screen will be auto-hidden. In this status, turn selector Switching The Power On/Off PWR KEY knob or Microphone [ ] key will increase or decrease According to the option selected during installation frequency quickly by 1MHz step. Press the switch or turn the ignition key to Under channel mode, you can change the current channel to the...
Basic Operations Please hold the microphone approximately 2.5-5.0cm from your lips, Channel Delete and then speak into the microphone in your normal speaking voice to Under channel mode, turn selector knob to select channel which get best timbre. you want to delete. Press and hold [PTT] key, LED lights RED and power intensity showed in Press key and...
Shortcut Operations In VFO mode, press for 1s to squelch off/squelch off momeNTARY enter into frequency scan. key programmed as Squelch Off or Squelch Off Momentary to Turn selector knob or press Microphone monitor the weak signal. ] key to change scan direction. Squelch Off: Press key to disable squelch, press Press any key except...
Shortcut Operations When LCD appears icon, it means Compander (Decrease the background noise and ENHANCE current channel can be set with DCS AUDIO CLARITY) encode and decode together, turn selector knob or press Microphone's [ ] to select Compander function will decrease the background noise and enhance desired DCS encode and decode.
Shortcut Operations KEYPAD LOCKOUT Turn selector knob to choose group you desired. Total:16 group, 01-16. Avoiding unintentional operation, this function will lock main keys, all Press key to enter into editing of keys except key are invalid. 、 current group, press MIC's numeric Press key until LCD displays keys to set your desired data.
General Setting "2TONE": The channel will be mute Press and hold key for over 2s to enter general setting menu. by a 2-Tone signal. The speaker Press to select the desired function option. won’t be open until receiving a Turn selector knob to select the desired setup. correspondent 2-Tone signal.
General Setting Signaling Combination setup Content and name of 2TONE will be edited by programming software. This function is used to prevent the This radio only query edited group or name. If there is radio from receiving irrelevent signals. corresponding name for 2TONE, this operation will display 2TONE corresponding name.
General Setting OFF: Busy channel lockout is disabled.It can transmit in any receiving TX OFF SETUP status. Disable this function, it is invalid to press PTT, current channel only works in RX mode. Press key to confirm and exit. Press and hold key for over 2s to enter general setting menu.
General Setting Turn selector knob to select the desired setting. Turn selector knob to select the desired setting. ON: Enable compander ON: Enable Frequency Reverse OFF: Disable compander OFF: Disable Frequency Reverse. Press key to confirm and exit. After edition, press key to exit.
General Setting Voice Prompt The prompting tone provides confirmation of entry, error status or malfunctions of the transceiver. You can enable or disable this function. Press and hold key for over 2s to enter general setting menu. Press key to choose No.18 menu, LCD displays "BEEP-- ON".
General Setting TOT (Time-out timer) DTMF Transmitting Time The time-out timer limits the amount of transmitting time. When you reach the time limit which has been programmed by your dealer, your Press and hold key for over 2s transmission will be cut off. In order to transmit again, you must release to enter general setting.
General Setting Pilot Frequency Scan Dwell Time Setup This function uses to start repeater. It needs a certain intensity Pilot There are 3 kinds of Scan Dwell Time for option. Frequency to start dormant repeater. As usual, no need to send pilot frequency again once repeater started.
General Setting Press to enter into ID setting, Turn selector knob to select the desired mode. press to select the desired FR:Frequency+Channel mode(Amateur transceiver mode). group (00-127, total is 128 group ID). CH:Channel mode(Professional transceiver mode). Turn selector knob to select desired number, press confirm and move NM:Channel+Name Tag mode(Amateur transceiver mode),...
Microphone Operation DOWN Switches between VFO and channel mode In standby, press key to switch between channel mode and Frequency mode (VFO). Short Calling Numeric Keys In standby, press to transmit the selected DTMF/2TONE/5TONE in current channel. DTMF ON/OFF Lock Transmitting DTMF Code:In standby, press , LCD displays DTMF Speaker...
Microphone Operation RL: Enable BTLO, transmitting is inhibited when current channel When first bit of Exa byte in frequency displays "F", it indicates receives a matching carrier but dis-matching CTCSS/DCS. 5Tone function enable. Press [PTT] to emit error voice prompt It can transmit in any This function can be temporarily used in channel mode.
In standby, press , then press LCD displays "TOT-X". Press [ ] to select the desired setting. Press [ ] to select the desired value. ON:Enable Talk Around Press number key to confirm and exit. OFF:Disable Talk Around CTCSS/DCS Encode and Decode Press number key to confirm and exit.
Long-distance Anti-theft Alarm This function is mainly use for simple anti-theft alarm device in vehicles. When the alarm cable QL-01(A) or QL-01(B) is removed from the When the transceiver be removed in an improper manner, the transceiver DATA jack or cut by improper sequence, the alarm function enable will emit and transmit alarming and background voice to system and and will alarm as programmed.
Australian Broardcasting Requirements Transmit and Receive Procedure Medical Devices Your two-way radio contains a transmitter and a receiver. To control Pacemakers your exposure and ensure compliance with the general population/ The Advanced Medical Technology Association recommends that a uncontrolled environment exposure limits, always adhere to the minimum separation of 6 inches (15cm) be maintained between a following procedure: •...
Talk range depends on the terrain. It will be affected by concrete structures, heavy foliage and by operating radios indoors or in vehicles. Your DB477C is simplex “one way at a time”. While you are speaking, For others to receive your transmission, they must be on the same you can not receive a transmission.
Australian Broardcasting Requirements Channel 5 and 35 (paired for Duplex repeaters) are reserved as emergency channels and should be used only in an emergency. CTCSS and DCS will not operate on channels 5 and 35. A list of currently authorised channels can be obtained from the ACMA website in Australia and the MED website in New Zealand.
Page 40
Technical Assistance If you need assistance setting up or using your CRYSTAL product now or in the future, call CRYSTAL Support. Australia TEL: 03 – 8587 8898 FAX: 03 – 8587 8866 Mon-Fri 9am – 5pm AEST Please retain this user guide for future reference.
Page 41
CRYSTAL MOBILE WARRANTY AGAINST DEFECTS This warranty against manufacturing defects is given by TDJ Australia Pty Ltd ACN 006 385 191). Our contact details are set out in clause 2.7. 1. Consumer guarantee Our goods come with guarantees that cannot be excluded under the Australian Consumer Law.
Page 42
2. Warranty against defects 2.1 This Warranty is in addition to and does not limit, exclude or restrict your rights under the Competition and Consumer Act 2010 (Australia) or any other mandatory protection laws that may apply. Consumer guarantees are a set of rules that apply to goods and services purchased by consumers under the Australian Consumer Law (ACL).
Page 43
repair or replace (at our option) any materials or workmanship which we are satisfied do not meet manufacturers specifications. 2.5 We warrant that we will perform services with reasonable care and skill and agree to investigate any complaint regarding our services made in good faith. If we are satisfied that the complaint is justified, and as our sole liability to you under this warranty (to the extent permitted at law), we agree to supply those services again at no extra charge to you.
Page 44
(f) goods where the serial number has been removed or made illegal. 4. Warranty period 4.1 We provide the following warranty on Crystal Mobile products. No repair or replacement during the warranty period will renew or extend the warranty period past the period from original date of purchase.
Need help?
Do you have a question about the DB477C and is the answer not in the manual?
Questions and answers