Yaesu FTX-1 Field SDR Transceiver (HF/50/144/430 MHz)

The Yaesu FTX-1 Field is an HF SDR transceiver providing wide-range continuous reception coverage from 30 kHz to 174 MHz and 400 MHz to 470 MHz, including SWL, FM broadcast, and airband. The FTX-1 Field is supplied with a high-capacity 6,400 mAh Li-Ion battery (SBR-52LI) for field operations. By connecting the SBR-52LI to the rear of the headshell, the FTX-1 provides 6W (5W for QRP) of power in standalone operation on the HF to V/UHF bands in all modes: SSB, CW, AM, FM, and C4FM digital. It has 9 hours of runtime at 6W on the HF bands (SSB) and 8 hours at 6W on the V/UHF bands (FM) (6-6-48 hour duty cycle). The SBR-52LI is recharged separately using a third-party USB Type-C cable (45W or more/15V 2A). Using an external 13.8 V DC power supply, it delivers up to 10 W of output power and the head automatically charges the SBR-52LI. The Yaesu SPA-1 (optional) can be connected to the rear of the head, and the FTX-1 becomes a 100 W base station. No tools are required for connection.

FEATURES

• Excellent handling of nearby signals, thanks to a powerful RF front-end with 10 band-pass filters (BPFs) for the HF to UHF amateur radio bands, and a low noise figure (NF) RF amplifier, ideal for combating intermodulation. A high-purity oscillator at 110.592 MHz provides a high-quality sampling clock signal to the A/D converter, with excellent C/N characteristics.
• SDR architecture ensures superior reception performance, utilizing the same high-resolution A/D converter and FPGA as the FTDX10.
• Effective QRM rejection via a high-speed 32-bit DSP with SHIFT/WIDTH/NOTCH/CONTOUR/APF (Audio Peak Filter)/DNR (Digital Noise Reduction)/NB (Noise Blanker) functions.
• Dual-band operation, including simultaneous C4FM/C4FM reception (HF/V, HF/U, V/U, U/V, V/V, U/U) – HF/HF not available.
• 3DSS (Three-Dimensional Spectrum) with a high-resolution 4.3-inch color TFT touchscreen.
• Intuitive front panel with dual LEDs above the MAIN VFO to indicate MAIN/SUB reception status, VMI LED (VFO mode indicator), and FUNC dial for quick access to menus and parameter adjustment.
• Super-DX extends communication range – available on all bands and modes except C4FM.
• “PRESET” mode, ideal for FT8.
• Two large front-facing speakers provide powerful, high-quality audio.
• Die-cast aluminum chassis with multiple slots for efficient heat dissipation, ensuring stable, high-power output.

FUNCTIONS

• MAG (Memory Auto Grouping) for HF/VHF/UHF: Memory channels are automatically grouped and can be recalled by band groups. In M-GRP (My Group), any memory channel can be assigned, regardless of frequency.
• QMB (Quick Memory Bank) for HF/VHF/UHF: QMB saves the frequency, mode, transmit/receive settings, filters, and other parameters of the received channel. Up to 10 channels can be recalled with a single press of the [QMB] button.
• PMG (Primary Memory Group) for VHF/UHF: Up to 5 PMG channels can be registered and quickly monitored. In AUTO mode, all PMG channels are scanned, and up to two active channels can be received simultaneously. In MANUAL mode, the selected PMG channel is constantly monitored, and the others are also scanned and received if there is a signal. Ideal for monitoring club communication channels.
• AMS (Automatic Mode Select) for VHF/UHF: Automatically detects whether the received signal is digital C4FM or FM and adjusts the receiver to the appropriate mode. No manual switching is required.
• Memory Channel Scope for HF/VHF/UHF: Displays the reception status of up to 43 memory channels in bar graph form. Transmit/receive channels can be selected by touching the bars.

Other Features:

• APRS® data communication at 1200/9600 bps
• WiRES-X compatible (available August 2025)
• Micro SD card slot
• CW functions (CW zero-in, CW Auto zero-in, CW Reverse, CW keying signal shaping, etc.)
• USB ports for CAT control, audio input/output, and transmit control
• Versatile FM functions – DCS, CTCSS tone encoder/decoder, ARS (Auto Repeater Shift), DTMF
• AGC (Automatic Gain Control)
• Compatible with YAESU auto-tuning antennas: ATAS-120A, ATAS-25, and FC-40 external autotuner for long-wire antennas (100W HF/50MHz and 50W V/UHF)

TECHNICAL SPECIFICATIONS

GENERAL:

• Range TX frequencies: 1.8MHz – 450MHz (Amateur bands only) / 70MHz – 70.5MHz (Amateur bands only)
• RX frequency range: 30KHz – 174MHz / 400MHz – 470MHz (Amateur bands only)
• Transmission modes: A1A (CW), A3E (AM), J3E (LSB, USB), F3E (FM), F7W (C4FM), F1F, F2D
• Frequency steps: 1*5/10/20Hz (CW, SSB, AM), 5/6.25/10/12.5/20/25 kHz (FM) *Fine tuning ON
• Antenna impedance: 50 Ω, unbalanced
• Temperature range: -10°C to +50°C
• Power supply voltage: DC 10.8V (SBR-52LI) / DC 13.8V ±15% (EXT)
• Approximate power consumption:
  • RX (no signal) 0.6A
  • RX (signal present) 0.9A
  • TX (6W) 2.5A
  • TX (10W) 3A
• Dimensions (width x height x depth): 213 x 89 x 55 mm
• Weight: 1.25 kg

TRANSMITTER:

• Output Power:
  • 0.5–6 W (0.5–2.5 W AM carrier) @ SBR-52LI
  • 0.5–10 W (70 MHz: 0.5–6 W) / (0.5–2.5 W AM carrier) @ EXT DC 13.8 V
• Modulation Types:
  • J3E (SSB): Balanced
  • A3E (AM): Low Level (Primary Stage)
  • F1D, F2D, F3E (FM): Variable Reactance
  • F7W (C4FM): 4-Level FSK
• Maximum FM Deviation: ±5.0 kHz / ±2.5 kHz (Narrow)
• Harmonic Radiation:
  • Greater than -50 dB (1.8 MHz–29.7 MHz for Amateur Radio bands)
  • Greater than -60 dB (50 MHz for Amateur Radio bands) 10 W)
  • Greater than -51 dB (70 MHz for amateur radio bands, 6 W)
• SSB Carrier Suppression: At least 60 dB below peak output
• Unwanted Sideband Suppression: At least 60 dB below peak output
• Bandwidth: 3 kHz (LSB, USB), 500 Hz (CW), 6 kHz (AM), 16 kHz (FM/C4FM)
• Audio Response (SSB): No greater than -6 dB from 300 Hz to 2700 Hz
• Microphone Impedance: 600 Ω (200 kΩ to 10 kΩ)

RECEIVER:

• Circuit Type:
  • Superheterodyne Direct Sampling (below 48 MHz)
  • Single-Conversion IF Sampling (48 MHz and above)
• Intermediate Frequencies: MAIN: 44.5 – 49.5 MHz, SUB: 41.3 – 44.3 MHz (48 MHz and above)
• Sensitivity (typ.):
  • SSB/CW (BW: 2.4 kHz, 10 dB S+N/N)
    • 1.8MHz – 30MHz 0.16μV (IPO: AMP2)
    • 50MHz – 54MHz 0.125μV (IPO: AMP2)
    • 70MHz – 70.5MHz 0.16 μV (IPO: AMP2)
    • 144MHz – 148MHz 0.125 μV (AMP: ON)
    • 430MHz – 450MHz 0.125 μV (AMP: ON)
  • AM (BW: 6 kHz/10 dB S+N/N, 30% modulation @400 Hz)
    • 0.5MHz – 1.8MHz 7.9 μV
    • 1.8MHz – 30MHz 2 μV (IPO: AMP2)
    • 50MHz – 54MHz 1μV (IPO: AMP2)
    • 70MHz – 70.5MHz 2μV (IPO: AMP2)
    • 144 MHz – 148 MHz 1 μV (AMP: ON)
    • 430 MHz – 450 MHz 1 μV (AMP: ON)
  • FM (BW: 12 kHz, 12 dB SINAD, 3.5 kHz DEV at 1 kHz)
    • 28MHz – 30MHz 0.25μV (IPO: AMP2)
    • 50MHz – 54MHz 0.2 μV (IPO: AMP2)
    • 70MHz – 70.5MHz 0.25μV (IPO: AMP2)
    • 144 MHz – 148 MHz 0.125 μV (AMP: ON)
    • 430 MHz – 450 MHz 0.125 μV (AMP: ON)
• Selectivity (WIDTH: Center): Mode                              -6 dB                                -60 dB
  • • • CW (BW = 0.5 kHz)           0.5 kHz or better             0.75 kHz or less
      • SSB (BW = 2.4 kHz)          2.4 kHz or better              3.6 kHz or less
      • AM (BW = 6 kHz)              6 kHz or better                 15 kHz or less
      • FM (BW = 12 kHz)             12 kHz or better               25 kHz or less
• Image Frequency Rejection:
  • 70 dB or better (1.8 MHz–28 MHz for Amateur Radio bands)
  • 60 dB or better (50 MHz, 70 MHz, 144 MHz, 430 MHz for Amateur Radio bands)
• Maximum Audio Output: 1.5 W (4 Ω at 10% THD)
• Audio output impedance: 4 Ω to 16 Ω (4 Ω: nominal)
• Conducted radiation: Less than 4 nW

CONTENTS

• FTX-1 Field
• SBR-52LI – 6400mAh lithium-ion battery
• DC power cable with connector for the FTX-1 Field front panel
• SSM-75E – Handheld microphone
• User manual

User manual in English