uSOTA-ATU USDX HF QRP SDR Transceiver Built-in ATU-100 Antenna Tuner with Dual OLED Displays 8 Bands Design

uSOTA-ATU uSDX HF QRP SDR Transceiver

This compact uSDX-based QRP transceiver combines an HF SDR radio section with an integrated automatic antenna tuner and dual OLED displays. The page offers 4-band and 8-band configurations; band coverage follows the selected version.

Radio and Tuner Functions

• USB, LSB, CW, AM and FM modes.
• Listed RF output of approximately 3-5 W across the supported bands.
• Integrated QRP automatic tuner derived from the ATU-100 design and adapted for operation up to 10 W.
• DSP filtering, AGC, noise reduction, VOX, receive attenuation and transmit-drive control.
• PC control for compatible digital-mode workflows such as FT8, JS8 and FT4.

8-Band Version

The exact-model source lists 3.5, 5.3, 7, 10, 14, 18, 21 and 29 MHz bands for the 8-band version. Do not apply this list to the 4-band option without checking the selected configuration.

Connections and Power

• BNC antenna interface with the listed adapter and cable package.
• 3.5 mm connections for headphones, microphone/PTT, speaker/microphone and PTT output.
• External 12.6-13.8 V DC supply required.
• No built-in battery or speaker is listed.

Operating Notes

Use a matched antenna system, begin at low power and observe local amateur-radio licensing and band limits. Included accessories follow the selected package.