Yaesu FTM-310DRASP C4FM/FM 144/430MHz Dual Band Digital Mobile Transceivers deliver an impressive power output of 55 watts on VHF and 50 watts on UHF, and selectable power levels of 25W and 5W for flexible operation. Audio performance is strong, featuring a total output of 6 watts—split between a 3W front speaker and a 3W main-unit speaker enhanced by AESS (Acoustic Enhanced Speaker System) technology. The SPU-1 Audio Signal Processing (ASP) module comes pre-installed in the FTM-310DRASP, providing optimized audio clarity in noisy environments.

The clear, easy-to-read full dot-matrix display ensures excellent visibility of settings and status, with selectable backlight color options in amber or white for personalized viewing comfort.

Dual receive functionality allows simultaneous C4FM/C4FM monitoring across various combinations including V/U, V/V, U/V, and U/U. Both models support Super-DX sensitivity boost for enhanced reception

The PMG (Primary Memory Group) function enables monitoring of up to five channels with both automatic and manual modes. MAG (Memory Auto Grouping) organizes memory channels either by band or user-defined criteria. Users can customize their experience with the CFL (Custom Function List), selecting up to nine functions from a menu of 127 options.

Band scope functionality supports up to 47 channels and allows toggling between dual receive and scope views. AMS (Automatic Mode Select) intelligently switches between C4FM digital and FM analog modes. For group communication, DG-ID and GM features use ID codes for streamlined monitoring and interaction.

Integrated GPS includes a 66-channel high-sensitivity receiver, and APRS® is supported at both 1200bps and 9600bps for data communication. WiRES-X is fully supported for digital voice and data networking. Receiver coverage spans from 108MHz to 550MHz on both main and sub bands.

Bluetooth® capability is available via the optional BU-5 module, enabling hands-free operation, and the control head is angle-adjustable with the optional SJMK-500 mounting kit. Microphone jacks are conveniently located on both the head and main unit.

Key Features

- C4FM Digital Mode: Offers excellent digital audio quality thanks to outstanding C4FM BER (Bit Error Rate Characteristics).

- Super-DX Audio Processing: Offers unparalleled expanded FM Communication Range enhancing weak signal reception in both digital and analog modes.

- AESS (Acoustic Enhanced Speaker System): The Phase Modification Dual Speaker system offers clear and high-fidelity audio.

- ASP (Audio Signal Processing): The SPU-1 Audio Signal Processing (ASP) module comes pre-installed in the FTM-310DRASP, providing optimized audio clarity in noisy environments.

- PMG (Primary Memory Group) Monitoring: Up to 5 frequencies can be easily registered and monitored in real-time in a bar graph.

Features and Specifications:

• ASP (Audio Signal Processing): SPU-1 ASP module pre-installed

• Frequency Range RX: 108MHz–550MHz (MAIN/SUB)

• Frequency Range TX: 144-148, 430-450MHz

• Output Power: 55W (144MHz), 50W (430MHz); selectable 25W, 5W

• FACC Cooling System: Funnel Air Convection

• Audio Output: 6W total (3W front speaker + 3W main-unit speaker via AESS)

• Power Supply: 13.8VDC

• Current Consumption: 0.5A Receive, 11A (55W TX, 144MHz), 10A (50W TX, 430MHz)

• Display: Full dot-matrix

• Selectable Backlight Color: Amber or White

• Split Memory Function

• Dual Receive: C4FM/C4FM simultaneous (V/U, V/V, U/V, U/U)

• Handsfree Bluetooth®: Requires the optional BU-5 module for hands-free operation

• GPS: 66-channel high-sensitivity receiver

• APRS®: 1200/9600bps data communication

• ARS: Automatic Repeater Shift

• NOAA Weather & Alerts: (When available in service area)

• Super-DX Sensitivity Boost: Available on both models

• PMG: Monitor up to 5 channels with AUTO/MANUAL modes

• Memory Channels: 1103

• MAG: Auto memory grouping by band or user-defined

• CFL: Custom Function List (up to 9 functions from 127 menus)

• Band Scope: Up to 47 channels; dual receive/scope toggle

• AMS (Automatic Mode Select): Auto-switch between C4FM and FM analog

• APO (Automatic Power Off)

• DG-ID & GM: Group communication and monitoring via ID codes

• WiRES-X: Worldwide Portable Digital Node Function

• Control Head: Adjustable angle with optional SJMK-500 kit; mic jack on head and main unit

• microSD Card Slot

• Dimensions:

  • Radio Head Unit: (WxHxD) 5.47 x 1.66 x 5.23in. w/o fan

  • Controller: (WxHxD) 5.82 x 2.20 x 2.20in.

• Weight: 2.64lbs.

*Super-DX is available with the FTM-310DR without the SPU-1 board.

** The main-unit speaker will not sound when the ASP function is in use but 3W front speaker positioned inside the front head ensures clear and powerful audio.