Alinco DR-138 MKII VHF Mobile Radio 136-174 MHz

Alinco DR-138 MKII VHF Mobile Radio

The Alinco DR-138 MKII is a reliable VHF mobile transceiver designed for amateur radio operators, emergency communication teams and professional communication users. Operating across 136-174 MHz, this radio provides dependable performance, excellent receiver sensitivity and easy programming capabilities.

Whether installed in a vehicle or used as a base station, the DR-138 MKII delivers clear communication and long-term reliability.

Key Features

✔ 136-174 MHz VHF Coverage

✔ 200 Programmable Channels

✔ Excellent Receiver Sensitivity

✔ Compact Mobile Design

✔ Stable Frequency Control

✔ Multiple Channel Step Options

✔ Suitable for Repeater Operation

✔ Clear and Powerful Audio Output

✔ Rugged Construction

✔ Easy Programming

Applications

• Amateur Radio

• Emergency Communications

• Repeater Systems

• Vehicle Installation

• Commercial Communications

• Base Station Operation

• Security Networks

General Specifications:

• Frequency Range:Transmission (TX) and Reception (RX): 136.000 to 173.9975 MHz
• Number of Channels: 200 programmable channels
• Channel Spacing:Wide Mode: 25 kHz
  Middle Mode: 20 kHz
  Narrow Mode: 12.5 kHz
• Channel Steps: 2.5, 5, 6.25, 8.33, 10, 12.5, 15, 20, 25, 30, and 50 kHz
• Operating Voltage: 13.8V DC ±15%
• Frequency Stability: ±2.5 ppm
• Operating Temperature Range: -20°C to +60°C
• Dimensions: Approximately 145 mm (W) x 47 mm (H) x 190 mm (D)
• Weight: Approximately 1.2 kg

Receiver Specifications:

• Sensitivity (12dB SINAD):Wide Mode: ≤0.25 µV
  Narrow Mode: ≤0.35 µV
• Adjacent Channel Selectivity:Wide Mode: ≥70 dB
  Narrow Mode: ≥60 dB
• Intermodulation Rejection:Wide Mode: ≥65 dB
  Narrow Mode: ≥60 dB
• Spurious Rejection: ≥70 dB
• Audio Output Power: >2W at 10% distortion

Transmitter Specifications:

• Power Output Levels:High: 60W
  Medium: 25W
  Low: 10W
• Modulation:Wide Mode: 16KΦF3E
  Narrow Mode: 11KΦF3E
• Adjacent Channel Power:Wide Mode: ≥70 dB
  Narrow Mode: ≥60 dB
• Spurious Emission: ≥60 dB
• Audio Distortion: ≤5%
  

  Frequently Asked Questions

  Q. Is the Alinco DR-138 MKII suitable for amateur radio use?

  Yes, the DR-138 MKII is widely used by amateur radio operators for reliable VHF communication.

  Q. What frequency range does the radio cover?

  The radio operates from 136 MHz to 174 MHz.

  Q. How many channels can be programmed?

  The DR-138 MKII supports 200 programmable memory channels.

  Q. Can it be used as a base station?

  Yes, with a suitable 13.8V power supply and antenna.

  Q. Does it support repeater operation?

  Yes, the radio is suitable for repeater communication.