Why Alinco Transceiver does not transmit and cannot be reset?
If your Alinco Transceiver won't transmit and can't be reset, it could be because the DSUB-9 port has been connected to a PC without installing the EJ-41U. Disconnect the cable and install EJ-41U properly.
Why is there no sound coming from the Alinco Transceiver speaker?
If no sound is coming from the Alinco Transceiver's speaker, there might be a couple of reasons: * The squelch might be muted. Try decreasing the squelch level. * Tone or DCS squelch might be active. In this case, turn off CTCSS or DCS squelch.
What to do if PTT key is pressed but transmission does not occur on Alinco DR-135TMkIII Transceiver?
If you press the PTT key on your Alinco Transceiver and transmission doesn't occur, check these potential causes: * Ensure the microphone connection is properly connected. * Verify the antenna connection is properly connected.
Why Alinco DR-135TMkIII Transceiver does not work in the APRS mode?
If your Alinco Transceiver isn't working in APRS mode, consider the following: * Ensure the connections and parameters are configured properly. * Use PC to configure the TNC, if the unit is not configured for automatic transmission. * Adjust squelch level properly, if the squelch is open. * Wait until GPS receiver receives data from satellites, if GPS receiver is not receiving the data from the satellites.
Why Alinco DR-135TMkIII Transceiver does not work in the packet mode?
If your Alinco Transceiver isn't working in packet mode, here are some things to check: * Make sure the connections and configurations are properly set for EJ-41U/TNC. * Follow the instruction, configure and retry, if the unit is not in the data mode. * Adjust squelch level properly, if the squelch is open. * Use command to configure the speed, if the data transmission speed is not configured. * Use straight RS-232C cable, if the cable is not straight type.
How to unlock the Alinco DR-135TMkIII Transceiver if key and dial do not function?
If the key and dial on your Alinco Transceiver aren't working, it's possible that the key-lock function is activated. Try canceling the Key-lock function.
What to do if rotating dial will not change memory channel on Alinco DR-135TMkIII?
If the rotating dial on your Alinco Transceiver won't change the memory channel, the transceiver might be in CALL mode. Press the VFO or memory mode.
What to do if Alinco DR-135TMkIII fuse is blown?
If the fuse is blown, check and solve the problem that resulted in the blown fuse. Replace the fuse with a new one.
What to do if power is on but nothing appears on Alinco DR-135TMkIII display?
If the power is on but nothing appears on the Alinco Transceiver's display, the + and - polarities of the power connection might be reversed. Connect the red lead to the plus terminal and the black lead to the minus terminal of the DC power supply.
Safety guidelines for operating environment and conditions.
Precautions for safe handling and operation of the device.
Guidelines for proper power supply connection and usage.
Procedures to follow in emergency situations concerning the product.
General advice and precautions for using the transceiver.
Specific advice on power supply connection and usage, including European standards.
Environmental and usage restrictions to prevent damage or hazards.
Important points to note before operating the transceiver.
Special notice for California users regarding product materials.
Step-by-step guide for setting up the transceiver as a base station.
Instructions for installing the transceiver in a vehicle.
Critical safety warning regarding radio frequency exposure during operation.
Explanation of external power supply connection and power lamp operation.
How to display and check the transceiver's power supply voltage.
Identification and function of controls on the front panel of the transceiver.
Identification and function of connectors and controls on the rear panel.
Explanation of the transceiver's LCD display icons and their meanings.
Details of the microphone controls and connector pinout.
Step-by-step instructions for powering the transceiver on and off.
How to adjust the audio output volume level.
Adjusting the squelch to control background noise and signal reception.
Explanation of the Variable Frequency Oscillator mode for frequency selection.
How to select the frequency step size for tuning and scanning.
Setting CTCSS tones and DCS codes for selective calling and squelch.
Managing memory channels for storing and recalling frequencies and settings.
Using the CALL mode for quick recall of a specific memory channel.
Procedures for receiving signals and monitoring activity.
Steps for transmitting signals, including power level selection.
Configuring repeater offset and shift direction for duplex operation.
Guide on how to enter and navigate the parameter setting menu.
Configuring the frequency step size for VFO operation.
Selecting the condition for resuming scan operations.
Enabling or disabling audible beeps for key presses and settings.
Setting a limit for continuous transmission to prevent repeater lockout.
Configuring a penalty time after TOT expiration to prevent immediate re-transmission.
Enabling automatic power off feature to save battery.
Setting the audible tone frequency for activating repeaters.
Preventing transmission when a channel is busy.
Setting up an alarm to deter improper removal of the unit.
Assigning text tags to memory channels for easier identification.
Adjusting the display brightness for better visibility.
Utilizing the transceiver's automatic signal search capabilities.
Scanning within a user-defined frequency range.
Searching for CTCSS tones on incoming signals.
Searching for DCS codes on incoming signals.
Locking keys to prevent accidental changes.
Transmitting a tone burst for repeater activation.
Enabling digital voice communication via an optional unit.
Switching between wide and narrow modes for transmission and reception.
Transmitting pre-programmed DTMF tones for remote control.
Setting up an alarm to deter improper removal of the unit.
Switching to AM reception mode for specific frequency bands.
Copying programmed data and settings between units.
Connecting and operating packet mode using the EJ-41U unit.
Configuring settings for packet mode operation.
Connecting and operating packet mode with an external TNC.
Operating Automatic Packet Reporting System (APRS).
Setting up the transceiver and GPS receiver for APRS operation.
Performing APRS operations using the transceiver and PC.
Entering commands or frequencies for remote control operation.
Preventing remote control inputs by activating the lock function.
Inputting frequencies directly using the microphone's numerical keys.
Understanding how tuning step affects direct frequency entry.
Procedure for resetting the transceiver to factory default settings.
Common problems and their potential causes and solutions.
List of commands supported by the built-in TNC for packet operations.
General| Mode | FM |
|---|---|
| Voltage | 13.8V DC ±15% |
| Antenna Impedance | 50 ohms |
| Adjacent Channel Selectivity | 70 dB |
| Frequency Range | 144-148 MHz |
| Current Consumption (RX) | 0.5A |
| Weight | 1 kg |
| Modulation | F3E |
| Sensitivity | 0.25 μV |
| Audio Output | 2W (at 10% distortion) |
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