To Next PageTo Next PageWhat to do if the Alinco DR-138 Transceiver PTT key is pressed but doesn't transmit?
If the PTT key is pressed on your Alinco Transceiver but it doesn't transmit, check that the microphone and antenna are properly connected.
Why no sound from Alinco DR-138 speaker?
If no sound comes from the speaker of your Alinco Transceiver, the squelch level might be too high. Try decreasing the squelch level. Also, if selective-calling like TSQ is activated, press the [Moni] key to monitor.
How to unlock Alinco DR-138 Transceiver key and dial?
If the keys and dial on your Alinco Transceiver do not function, the key-lock function may be activated. Cancel the key-lock function to restore functionality.
Why won't the Alinco DR-138 rotating dial change the memory channel?
If the rotating dial on your Alinco Transceiver will not change the memory channel, the transceiver might be in CALL mode. Press the key to exit CALL mode.
What to do if Alinco DR-138 power is on, but nothing appears on the display?
If the power is on but nothing appears on the display of your Alinco Transceiver, check the polarities of the power connection. Ensure that the red lead is connected to the plus terminal and the black lead to the minus terminal of the DC power supply.
What to do if Alinco DR-138 Transceiver fuse is blown?
To resolve a blown fuse in your Alinco Transceiver, first, identify and fix the underlying problem that caused the fuse to blow. Then, replace the blown fuse with a new one.
General| Frequency Range (TX) | 144-148 MHz |
|---|---|
| Frequency Range (RX) | 136-174 MHz |
| Modes | FM |
| Channel Capacity | 200 Channels |
| CTCSS/DCS | Yes |
| Power Supply | 13.8V DC |
| Channels | 200 |
| Output Power | 50/25/10 Watts |
Overview of the Alinco transceiver and manual reading advice.
Advice on avoiding interference and lightning precautions.
Lists key features like output power, PC-programmable, Voice Compander, etc.
Displays CE/RoHS symbols and conformity certificates.
Details RF energy generation and classification as "Occupational Use Only".
Guidelines for ensuring RF exposure limits are met.
Specifies minimum distance and duty cycle for RF exposure compliance.
Explains potential interference and precautions during transmission.
Defines the intended use for users aware of RF hazards and control.
Instructions on handling, audio levels, modifications, and operating environment.
Actions to take in case of unusual situations like smoke, damage, or liquid penetration.
Guidance on maintenance and consulting dealers for service.
Warnings about traffic regulations, device proximity, children, leaks, and prohibited facilities.
Advice on connecting devices, power disconnection, and proper cleaning methods.
Note on software availability and requirements for PC programming.
Detailed list of included accessories like transceiver, microphone, fuses, and manual.
Steps to install the mounting bracket and transceiver in a car.
Detailed steps for connecting the DC power cable to the vehicle battery and transceiver.
Guidance on connecting the transceiver to a 13.8V DC power supply for fixed station use.
Procedure for replacing blown fuses and precautions.
How to display the supply voltage on the LCD.
Recommendations for connecting an efficient antenna and impedance matching.
How to connect external speakers and microphones to the transceiver.
Details on choosing and connecting an external speaker, including impedance and plug type.
How to connect the microphone and attach the hanger.
Identifies and explains the functions of the front panel keys and indicators.
Lists and explains basic functions accessible via key presses.
Lists functions that need keys to be pressed and held.
Explains the rear panel connectors and their purposes.
Details the various indicators and icons displayed on the transceiver's LCD.
Details the functions of the microphone keys and the connector pinout.
How to set the operating mode via software or manual setup.
Details the Frequency + Memory, Channel + Name Tag, and Frequency modes.
Describes the Commercial radio mode and its PC software dependency.
How to turn on/off, adjust volume, and switch between VFO/Memory modes.
How to adjust frequency/channel using the knob and set the squelch level.
Steps for receiving signals and initiating transmission.
How to transmit a tone-burst signal.
How to transmit pre-stored DTMF/2Tone/5Tone signaling.
Step-by-step guide to programming memory channels.
How to delete stored memory channels.
How to disable squelch temporarily or permanently.
How to perform frequency and memory channel scans.
How to scan through memory channels.
Setting up CTCSS/DCS for selective calling and squelch.
How to scan for CTCSS tones.
How to scan for DCS codes.
How to switch between high, middle, and low power output.
How to enable and use the compander function for clearer audio.
How to set the offset direction and frequency for repeater operation.
How to activate and deactivate the keypad lockout function.
How to display the current battery voltage.
How to set up and program Auto-dialer tones for automatic transmission.
How to transmit programmed DTMF tones from the auto-dialer memory.
How to set the frequency channel step size.
Explains DTMF, ANI, 2Tone, and 5Tone signaling functions.
How to send a 2-Tone call.
How to send a 5-Tone call.
How to send a DTMF call.
How to set up signaling combinations for radio protection.
How to select the transmission power level (High, Mid, Low).
How to select the appropriate bandwidth for local band plans.
How to prohibit transmission and use the radio as a receiver.
How to enable Busy Channel Lockout to prevent transmitting on a busy channel.
How to edit channel names in memory mode.
How to reverse transmit and receive frequencies.
How to enable Talk Around for direct communication.
How to enable the compander function for improved audio clarity.
How to enable the scrambler function for secure communication.
How to check the radio's DTMF Self ID.
How to check the radio's 5Tone Self ID.
How to enable or disable beep sounds for confirmations and errors.
How to set the time-out timer to limit transmission duration.
How to set the auto power off timer.
How to set the time for sending DTMF signals.
How to select the display illumination color.
How to set the scan resume conditions (Timed, Busy, Signal).
How to adjust the LCD brightness.
How to select the pilot frequency for tone-burst tones.
How to select display modes (Freq+Mem, Channel, Channel+Name).
How to enable or disable the PIN setup function.
How to store and manage ID and name entries in the address list.
How to reset the transceiver to factory default settings.
Resumes factory default settings for channel, signaling, and general settings.
Returns to initial setup for general settings menu items.
How to switch between VFO and Channel modes using the microphone.
How to transmit selected DTMF/2Tone/5Tone using the microphone.
How to set the frequency channel step size using the microphone.
How to set DTMF, 2Tone, or 5Tone signaling using the microphone.
How to set channels to skip during scanning.
How to initiate frequency and channel scans.
How to enable Busy Channel Lockout using the microphone.
How to reverse TX/RX frequencies using the microphone.
How to set the time-out timer using the microphone.
How to set CTCSS/DCS encode and decode using the microphone.
How to enable Talk Around using the microphone.
How to enable or disable voice prompts using the microphone.
How to select power levels using the microphone.
How to adjust the LCD backlight brightness using the microphone.
Steps for connecting the alarm cable and enabling the long-distance anti-theft alarm.
Steps to connect units and initiate the cloning process.
Steps to install the USB to COM port driver for the programming cable.
Lists the default settings after performing a reset.
Lists common problems and their potential causes and solutions.
Table of 50 CTCSS tone frequencies.
Table of 1024 DCS codes.
