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What are the key features of the ALINCO DR-M03?
The ALINCO DR-M03 features some of the most advanced features and reliable engineering available. The design philosophy focuses on developing innovative and usable features, including the following:
• The DR-M03 comes equipped with 50 CTCSS Tone encoders. With the optional EJ-20U Tone Squelch Decoder Unit, the CTCSS Tones can be decoded for selective receiving.
• 100 Memory Channels.
• Programmed Memory Scan, which passes over any empty memory channel. In the scan mode, the scan cycle will by-pass any un-programmed channels, which considerably speeds up memory scan.
• The Time Out Timer can be set to a Duty Cycle most accommodating to the user’s requirements.
What standard accessories are included with the ALINCO DR-M03?
When you unpack your ALINCO DR-M03 transceiver, you will find the following Standard Accessories included:
1. Hand Microphone (Condenser Type).
2. Mobile Mounting Bracket.
3. Installation Hardware (4 Black screws, 4 Screws, 1 Spanner, 4 Sets Bolt/Nut, 2 Fuse).
4. DC Power Cord.
What optional accessories are available for the ALINCO DR-M03?
The following optional accessory is available for the ALINCO DR-M03:
• EJ-20U Tone Squelch Decoder Unit
How do I install the ALINCO DR-M03 in a vehicle?
Mobile Antenna Installation:
A 50 Ohm coaxial cable is required for antenna installation. Use an appropriate mounting base for your mobile antenna. Refer to the antenna manufacturer’s manual for proper installation and mounting. After installing, ensure you have proper matching and the best possible SWR reading. High SWR or improper matching can cause severe damage to your unit. Caution: High RF environments can cause severe damage to your unit.
Mobile Installation:
1. Location: The transceiver may be installed in any position in your car where the controls and microphone are easily accessible and safe operation of the vehicle is not interfered with. Refer to the diagrams in the manual for installing the Mounting Bracket.
2. Power Requirements: The transceiver operates from any regulated 12 or 13.8 V negative ground source. For mobile use, power connections should be made directly to the battery to minimize possible ignition noise pickup.
How do I set up the ALINCO DR-M03 as a base station?
For fixed base station operation, a 13.8 V D.C. Power Supply capable of providing at least 5 A continuously is required. Connect the red lead of the power cable to the Positive (+) terminal, and the black lead to the Negative (-) terminal of the D.C. Power Supply.
What are the technical specifications of the ALINCO DR-M03?
All specifications are for Ham Bands ONLY.
GENERAL
| Frequency Coverage: | 28.000 – 29.700 MHz |
| Frequency Resolution: | 5, 10, 12.5, 15, 20 & 25 kHz Steps |
| Antenna Impedance: | 50 Ohms Unbalanced |
| Power Supply Requirements: | 13.8 ± 10% Volts DC |
| Current Drain at 13.8V: | Receiving: Squelched less than 800 mA Transmitting: 3 A approx |
| Dimension: | 140mm(W) x 40mm(H) x 115mm(D) |
| Weight: | Approx. 680 gs |
TRANSMITTER
| Output Power: | Hi 10W / Low 1 W |
| Emission Mode: | F3E (FM) |
| Modulation System: | Variable Reactance Frequency Modulation |
| Max. Frequency Deviation: | ±5 kHz |
| Spurious Emission: | -40 dB or under below carrier |
| Microphone: | Electret Condenser Microphone |
| Operation Mode: | Simplex/Semi-Duplex |
| Offset: | Offset from 0 to 15.995 MHz |
RECEIVER
| Receiving System: | Superheterodyne Dual Conversion |
| Intermediate Frequency: | 1st 10.7MHz & 2nd 455 kHz |
| Sensitivity: | 12dB SINAD -12dBμ |
| Selectivity: | More than ±5 kHz at -6dB Less than ±12.5 kHz at -60dB |
| Audio Power Output: | More than 2.5W at 10% Dist. |
| Speaker Impedance: | 8 Ohms |
FEATURES
| Memory Capacity: | 100 Memory Channels |
| Reverse: | REV |
| Time Out Timer: | TOT |
| Priority: | PRI |
| Repeater Shift: | SHIFT |
| Channel Step: | CH.SP |
| Scanning: | (Mic) UP/DOWN |
| Sub audible Tone: | CTCSS Encoder 57 Hz – 250 Hz with 50 Selections (Decoder optional) |
| Power Selection: | H/L |
| MHz Selection: | MHz |
| Function: | F |
| VFO/Memory: | VFO/M |
| Call Channel: | CALL |
| Key Lock: | LOCK |
What are the functions of the front panel and microphone controls on the ALINCO DR-M03?
Front Panel
• MAIN TUNING DIAL: Rotate to select transmit/receive frequencies, memory channels, transmit frequency offsets, and sub-audible tones.
• TRANSMIT/RECEIVE INDICATOR LAMP: Red light is on when PTT is held; green light is on when a signal is received.
• VOLUME CONTROL: Turn clockwise to increase volume, counterclockwise to decrease.
• SQUELCH CONTROL: Eliminates noise when no signal is present. Adjust clockwise to the noise threshold level.
• MHz KEY / H-L KEY: Changes the frequency Up or Down in one MHz steps. With the Func. Key, it selects the output power.
• POWER SWITCH: Press to turn On, press again to turn Off.
• F KEY / MONI KEY: Accesses secondary functions. Holding for over 0.5 sec. opens the squelch to monitor weak signals.
• REV / PRI KEY: Inverts TX and RX frequency in Duplex (Repeater) Mode. With the Func. Key, it selects priority mode.
• T.SQ / LOCK KEY: Selects Sub audible Tone. With the Func. Key, it turns the Lock Function On & Off.
• TOT / SHIFT KEY: Accesses the “Time Out Timer” setting. With the Func. Key, it selects the Repeater Off Set Step and Direction (+ or -).
• VFO/M / MW KEY: Toggles between VFO (Variable Frequency Oscillator) and Memory Modes. With the Func. Key, it functions as MW (Memory Write) to store selections to a memory channel.
• CALL / CH.SP KEY: Accesses a pre-programmed frequency (memory channel “CALL”). With the Func. Key, it is used to select the desired incremental changes of the receive/transmit frequencies in steps.
Microphone
• UP & DOWN KEYS: Used to step the VFO, Memory Channels, Off Set Shifts, Tone Selections, and Channel Step Selections. Holding one of these keys for 0.5 – 3 seconds will activate the scan.
• PTT KEY: The unit transmits when this Push To Talk key is depressed.
What do the indicators on the LCD display of the ALINCO DR-M03 mean?
• FUNC: Indicates that the Function key is on and Secondary function keys may be activated.
• ENC: Indicates CTCSS tone is encoded and the selected tone will be transmitted with the main carrier.
• DEC: Indicates CTCSS tone is decoded for selective listening. Incoming CTCSS tones will be received and decoded (This is an Optional Feature).
• “+”: Indicates Up transmitter offset in the Duplex mode.
• “-“: Indicates Down transmitter offset in the Duplex mode.
• LOW: Indicates Low Power transmission. When the display is off, transmission is in High Power.
• Main Frequency Display (888.888): Displays the selected transmit/receive frequencies, channel step, Time Out Timer, Offset, or sub audible tone frequencies.
• M: Indicates activation of the Memory Mode.
• Memory Channel Display (88): Indicates the selected Memory Channel. (“EE” will appear during transmission with CTCSS encoded.)
• BUSY: Indicates a signal is being received and the squelch is open.
• Signal Meter: Indicates relative received or transmitted signal strength. (This is for reference purposes only).
How do I perform basic receive operations with the ALINCO DR-M03?
1. Power On: Connect to a DC (13.8V) Power Supply, and push the POWER Switch.
2. Squelch: Set the squelch control knob to the noise threshold. The BUSY indicator will turn off.
3. Frequency Selection: Turn the Main Dial left or right to select the VFO frequency in kHz steps, according to the selected channel step value. Use the MHz Key to select one MHz Up or Down.
4. Volume Control: Use the Volume Control Knob to set the desired audio volume.
How do I transmit with the ALINCO DR-M03?
1. Select the desired transmit frequency.
2. Hold in the PTT switch; the Transmit Lamp will turn on. Speak into the Mic.
3. Release the PTT switch, and the unit will revert to monitoring mode.
4. If the LCD displays “OFF”, the transmit frequency has exceeded the transmit range of the unit, and no transmission is possible.
How do I switch between VFO, Memory, and Call modes on the ALINCO DR-M03?
• VFO Mode (Variable Frequency Oscillator): Press the VFO/M key to toggle between Memory Mode and VFO Mode. In VFO mode, the “M” character and memory channel number disappear. This mode is used to change frequency using the Main Tuning Dial.
• Memory Mode: Press the VFO/M key. In Memory Mode, the “M” character and a memory channel number are displayed. Turning the Main Tuning Dial or using the Up/Down keys on the mic changes the selected memory channel. Free (empty) memory channels are indicated by a blinking “M” on the LCD.
• Call Mode: From either VFO or Memory Mode, you can access your Call Channel by pushing the CALL Key. A blinking “M” indicates the Call Channel is blank. You can write your chosen frequency, shift, tone, etc., to the Call Channel with the same procedures used for Memory Write.
How do I select a CTCSS (Sub-Audible) tone on the ALINCO DR-M03?
To select a CTCSS tone on your ALINCO DR-M03:
1. Push the “T.SQ” key. The sub-audible tone frequency will display (in Hz) on the LCD.
2. To select a tone, turn the Main Dial or use the Up/Down keys on the Mic.
3. Push the VFO/M Key to return to VFO Mode.
To activate Tone Decode (optional EJ-20U Tone Squelch Unit required), press the “T.SQ” key before returning to VFO Mode.
Encode/Decode Tones (Hz)
| 67.0 | 69.3 | 71.9 | 74.4 | 77.0 |
| 79.7 | 82.5 | 85.4 | 88.5 | 91.5 |
| 94.8 | 97.4 | 100.0 | 103.5 | 107.2 |
| 110.9 | 114.8 | 118.8 | 123.0 | 127.3 |
| 131.8 | 136.5 | 141.3 | 146.2 | 151.4 |
| 156.7 | 159.8 | 162.2 | 165.5 | 167.9 |
| 171.3 | 173.8 | 177.3 | 179.9 | 183.5 |
| 186.2 | 189.9 | 192.8 | 196.6 | 199.5 |
| 203.5 | 206.5 | 210.7 | 218.1 | 225.7 |
| 229.1 | 233.6 | 241.8 | 250.3 | 254.1 |
How do I use the scan feature on the ALINCO DR-M03?
The ALINCO DR-M03 has two scanning modes that use a Timer Scan system. The scan stops for a maximum of 5 seconds if a signal is received and resumes immediately if the signal disappears.
A. VFO Scan (Scans the entire tuning range)
1. Press the VFO/M Key to select the VFO mode.
2. Hold the Up/Down keys on the Mic for 0.5 – 3.0 seconds to start scanning.
3. To change scan direction, turn the Main Dial opposite to the direction of the scan.
4. To stop scanning, press the PTT key or the VFO/M key.
B. Memory Scan (Scans all programmed memory channels)
1. Press the VFO/M key to select the memory mode.
2. Hold the Up/Down keys on the Mic for 0.5 – 3.0 seconds to start scanning.
3. To change scan direction, turn the Main Dial opposite to the direction of the scan.
4. To stop scanning, press the PTT key or the VFO/M key.
How do I use the Priority feature on the ALINCO DR-M03?
The Priority feature of the ALINCO DR-M03 monitors a primary channel for 5 seconds, then cycles to a secondary channel for 0.5 seconds. If a signal exists on the primary channel, it remains receiving for 2 seconds. To select the Priority feature, press the Func Key and then press the PRI Key. When VFO is selected, a “P” will be displayed on the LCD.
• A. VFO Priority: Sets up VFO as the primary channel. The last selected memory channel is the secondary channel.
• B. Memory Priority: Sets up your last selected Memory Channel as the primary channel. The VFO frequency becomes the secondary channel.
• C. Call Priority: Sets up your programmed Call Channel as the primary channel. The VFO frequency becomes the secondary channel.
How do I use the Key Lock function on the ALINCO DR-M03?
The Key Lock Function locks off most of the features and functions accessible from the touch tone pad and dials. To activate Key Lock on your ALINCO DR-M03, push the Func. Key and then the Lock Key. The LCD will display “FL” to indicate the Key Lock function is on. When Key Lock is on, only PTT, Power Selection, Monitor, and Key Unlock functions are available. (N.B. “PL” will be displayed if key-locked during the Priority monitor.)
How do I set the repeater offset and shift direction on the ALINCO DR-M03?
To select the Shift direction (+ or -) and Off-Set for Repeater operation on your ALINCO DR-M03, press the Func key and then press the TOT Key. The LCD will display a “-” mark and show the Off-Set value (in MHz).
A. Selecting and Changing Off-Set Value
Turn the Main Dial or use the Up/Down keys on the Mic to change the Off-Set value. The Off-Set can be set from 0 – 15.995 MHz, and programmed in each memory channel.
B. Setting Shift Direction
By pressing the FUNC Key and then pressing the TOT Key, the “-” will change to a “+”.
To return to VFO, press the VFO/M Key or the PTT Key.
How do I program and manage memory channels on the ALINCO DR-M03?
To select the Memory Mode on your ALINCO DR-M03, press the VFO/M Key. If you are in VFO, the radio will go to Memory Mode. If you are in Memory Mode, it will go to VFO Mode.
A. Memory Recall
From the VFO Mode, select the Memory Mode by pushing the VFO/M Key. The LCD will display an “M” and Channel number.
B. Memory Write
1. In the VFO Mode, select the desired Frequency, Shift, Off-Set, Tone, etc.
2. Press the Func Key. A “FUNC” will be displayed on the LCD.
3. Use the Main Dial or the Up/Down Keys on the Mic to select the desired Memory Channel number.
4. Press the MW Key to write to memory.
C. Memory Clear
1. In Memory Mode, press the Func. Key; a “FUNC” is displayed.
2. Select the desired Memory Channel with the Main Dial or Up/Down keys on the Mic.
3. Press the MW Key and the data is cleared from that Memory Channel.
How do I change the channel step on the ALINCO DR-M03?
The ALINCO DR-M03 has six selectable channel steps: 5k, 10k, 12.5k, 15k, 20k, 25k.
1. Press the Func Key, and then press CH.SP Key. The display will show the current Channel Step setting.
2. Turn the Main Dial or use the Up/Down Keys on the Mic to change the Channel Step to one of the six programmed selections.
3. Push the VFO/M Key or the PTT Key to return to VFO.
The Channel Steps are displayed on the LCD as follows:
• 5 kHz is shown as “5”
• 10 kHz is shown as “10”
• 12.5 kHz is shown as “12”
• 15 kHz is shown as “15”
• 20 kHz is shown as “20”
• 25 kHz is shown as “25”
How do I select the transmit power on the ALINCO DR-M03?
The ALINCO DR-M03 has two transmit power levels: High (no display) and Low (LOW displayed). High Power is factory set at 10 Watts, and Low Power is factory set at 1 watt. To change the Transmit Power selection, press the Func Key and then the MHz Key.
How do I set the Time Out Timer (TOT) on the ALINCO DR-M03?
To protect the ALINCO DR-M03 from excessive transmit, a Time Out Timer is installed. This can be programmed to activate from 0 seconds to 450 seconds (7.5 Minutes).
To set the timer, press the TOT Key. The LCD will display the selected Time Out Time in seconds. Use the Main Dial or the Up/Down Keys on the Mic to change the Time Out setting. Push the VFO/M Key to return to VFO or Memory Mode.
How do I use the Reverse (REV) function on the ALINCO DR-M03?
Activating the Reverse function on your ALINCO DR-M03 reverses the selected Off-Set transmit and receive frequencies. This is useful for determining whether to transmit in Semi-Duplex (utilizing a Repeater) or Simplex.
How do I temporarily open the squelch to monitor weak signals on my ALINCO DR-M03?
To monitor weak signals on your ALINCO DR-M03, press and hold the Func key for more than 0.5 seconds. The squelch will open. Release the Func key to return to the normal squelch system.
How do I enable or disable the beep tone on the ALINCO DR-M03?
• To disable the Beep Tone: Turn the unit off. While holding the VFO/M key, turn the unit on from the Power Switch.
• To enable the Beep Tone: Repeat the above procedure.
How do I perform a factory reset on the ALINCO DR-M03?
To re-set the ALINCO DR-M03, first turn the unit off. Then, while holding the Func Key, turn the unit on from the Power Switch. Re-setting the unit puts all features and functions back to the original factory settings and erases all memory channels.
What are the factory default settings for the ALINCO DR-M03?
| Factory Setting | DR-M03 |
| VFO | 29.000 MHz |
| CALL | 29.000 MHz |
| Memory Channels | Empty (100 CH) |
| Shift | None |
| Off Set | 0.1 MHz |
| Tone Encode/Decode | Disabled |
| Tone Frequency | 88.5 Hz |
| Channel Step | 20 kHz |
| Power | High |
| Key Lock | Off |
| Beep | On |
| TOT | Zero |
What should I do if my ALINCO DR-M03 is causing interference with TV or radio reception?
If your ALINCO DR-M03 causes harmful interference to radio or television reception, which can be determined by turning the equipment off and on, you are encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
How to use the PDF below:
* Touchscreen: Swipe up/down with-in the PDF to scroll and pinch or spread with two fingers to zoom.
* Mouse: While your mouse is hovering over the PDF, use the mouse wheel to scroll and click on the – / + buttons at the bottom of the PDF to zoom.
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