Yaesu FT-991A HF/50MHz/VHF/UHF All Mode C4FM 100W

The Yaesu FT-991A is a compact and versatile amateur radio transceiver, combining HF, 50MHz, VHF and UHF operation in a single unit, with support for analogue, digital and C4FM System Fusion modes.

With 100W output power on HF and 50MHz and 50W on VHF/UHF, the FT-991A is suitable for base station use, portable installation, mobile operation or as a main radio for operators who want to cover multiple bands with one transceiver.

The radio supports USB, LSB, CW, AM, FM, RTTY, Packet, PSK31 and C4FM modes, allowing voice, CW, digital modes, FM communication, repeaters and System Fusion digital networks.

The front panel features a 3.5-inch colour TFT touch display, with real-time spectrum scope and multi-colour waterfall, making it easier to view signals across the band and quickly select the desired frequency.

Reception benefits from the Yaesu IF DSP system, 3kHz roofing filter, interference rejection functions, noise reduction and digital filtering. The radio also includes an internal automatic antenna tuner, with memory to reduce tuning time when returning to previously used frequencies.

The USB connection allows computer integration for CAT control, firmware updates and digital audio/control use depending on setup and software.

The Yaesu FT-991A is a suitable solution for amateur radio operators looking for a modern, compact and complete radio capable of operating from HF to UHF in traditional and digital modes.

Main features

All band / all mode transceiver
Manufacturer / brand: Yaesu
Model: FT-991A
Equipment type: HF/50MHz/VHF/UHF transceiver
Operating modes: USB, LSB, CW, AM, FM, RTTY/FSK, Packet, PSK31 and C4FM
Digital system: C4FM System Fusion
HF/50MHz output power: up to 100W
VHF/UHF output power: up to 50W
AM power on HF/50MHz: up to 25W carrier
AM power on VHF/UHF: up to 12.5W carrier
Receive coverage: 30kHz to 56MHz, 118MHz to 164MHz and 420MHz to 470MHz
Transmit coverage: 1.8MHz to 54MHz, 144MHz and 430MHz, depending on version and applicable regulations
Display: 3.5" colour TFT touch screen
Spectrum scope: real-time
Waterfall: multi-colour
DSP: Yaesu IF DSP system
Roofing filter: 3kHz
Antenna tuner: internal automatic tuner
ATU memories: up to 100 channels
Local oscillator: high-accuracy ±0.5ppm TCXO
USB: yes, for CAT, firmware and audio/control depending on configuration
SSB/CW/AM receiver type: triple-conversion superheterodyne
FM/C4FM receiver type: double-conversion superheterodyne
HF/50MHz antenna connector: SO-239
VHF/UHF antenna connector: SO-239
Power supply: 13.8V DC
Fuse: 25A
Approximate dimensions: 229 x 81 x 236mm, without knobs and connectors
Approximate weight: 4.3kg
Listed country of origin: Japan
Manufacturer listed warranty: 3 years
Supplied accessories: MH-31A8J hand microphone, DC power cord, spare fuse, operating manual, depending on version
Suitable for HF, 6m, 2m, 70cm, portable operation, base station use and digital modes

Recommended applications

HF amateur radio operation
50MHz / 6 metre operation
VHF 144MHz / 2 metre operation
UHF 430MHz / 70 centimetre operation
SSB communication
CW operation
Digital modes such as RTTY, Packet and PSK31
C4FM System Fusion
FM and repeaters
Compact base station
Portable and field operation
Contests, DX and local contacts
Computer integration via USB
Use with compatible HF, VHF and UHF antennas

Important note

Before use, always confirm the equipment version, authorised bands, permitted power, power supply, compatible antennas, grounding, cabling, connectors and required accessories.

Transmission on amateur radio bands requires a valid licence and must comply with the regulations applicable in the country of use, including frequencies, modes, power and permitted antenna types.

The Yaesu FT-991A requires a 13.8V DC power supply with sufficient current for transmission. For safe operation, use a suitable power supply, cables, fuses and antennas for the operating power.

Final performance depends on the antenna, propagation conditions, installation, power supply quality, SWR, coaxial cable loss and local interference level. Power supply, antennas, coaxial cable, mobile bracket and optional accessories may not be included unless expressly stated otherwise.