USDX USDX-Plus HF 1.8-30 MHz QRP SDR Radio
Brand:
USDX
USDX USDX-Plus HF 1.8-30 MHz QRP SDR Radio
The USDX Plus is an ultra-compact HF QRP SDR transceiver designed for portable amateur radio operation across the HF spectrum. Utilizing a software-defined radio architecture with embedded DSP processing and an efficient Class-E transmitter design, the uSDX Plus delivers multi-mode HF communication in a lightweight, field-friendly package ideal for portable operating, digital modes, experimentation, and low-power DX operation.
Key Features
- HF coverage from 1.8 MHz to 30 MHz amateur bands
- Multi-band operation covering 160m through 10m amateur bands
- All-mode support including SSB, CW, AM, FM, and digital modes
- Software Defined Radio (SDR) receiver architecture
- Embedded DSP signal processing functions
- Efficient Class-E transmitter design for reduced power consumption
- Up to 5 Watts PEP RF output on external 13.8 VDC supply
- Continuously tunable across supported HF frequency ranges
- Built-in DSP filtering with multiple bandwidth selections
- Automatic Gain Control (AGC) functionality
- Digital Noise Reduction (NR)
- Selectable receiver attenuator settings
- Voice Operated Transmit (VOX) support
- TX noise gate and transmit drive adjustment
- Integrated S-meter and signal strength display
- CW decoder and built-in electronic keyer
- Straight key and Iambic A/B keyer support
- VFO A/B operation with split functionality
- RIT (Receiver Incremental Tuning) support
- CAT control compatibility for computer integration
- Compatible with FT8, FT4, JS8Call, and other digital mode software
- Built-in speaker for standalone operation
- Front-panel controls for portable operation
- TCXO frequency reference for improved frequency stability
- Open-source firmware platform for customization and experimentation
- Compact lightweight design suitable for field deployment
- Ideal for QRP operation, portable activations, and amateur radio experimentation
Typical Uses
- Portable HF amateur radio operation
- QRP field communications
- POTA and SOTA activations
- FT8, FT4, JS8Call, and digital modes
- Emergency and backup communication setups
- HF experimentation and SDR learning
- Low-power DX operation
In the Box
- USDX Plus HF QRP SDR Transceiver
- Hand Microphone
- Power Cable
- User Documentation
| Brand | USDX |
| Model Number | USDX Plus |
| Product Type | HF QRP SDR Transceiver |
| Frequency Coverage TX | 1.8-30 MHz |
| Frequency Coverage RX | 1.8-30 MHz |
| Amateur Bands | 160m/80m/60m/40m/30m/20m/17m/15m/12m/10m |
| Operating Modes | USB/LSB/CW/AM/FM |
| RF Output Power | Up to 5 W PEP |
| Receiver Architecture | SDR |
| Transmitter Type | Class-E |
| DSP Processing | Embedded DSP |
| AGC | Built-In |
| Noise Reduction | Built-In |
| VOX | Built-In |
| CW Decoder | Built-In |
| Electronic Keyer | Iambic A/B Supported |
| VFOs | Dual VFO A/B |
| RIT | Supported |
| Split Operation | Supported |
| CAT Control | Supported |
| Digital Modes | FT8/FT4/JS8Call Compatible |
| Frequency Reference | TCXO |
| Display | LCD Display |
| Speaker | Built-In |
| Power Supply | 13.8 VDC |
| Audio Output | Built-In Speaker |
| Portability | Ultra-Compact QRP Design |
| Firmware | Open Source |