Features:
* This is a shortwave QRP SSB/CW transceiver. It has a 1602 screen, built-in microphone, built-in speaker! It can be connected to the auto key and can decode via CW.
* Adopts IRF series transmitting tube, which is sturdy and practical.
* Connect the antenna and it can be used (BNC connector).
* 3 frequency bands. Power standing wave digital display!
* Marking on aluminum shell.
USDX software open source;
- https://.com/threeme3/QCX-SSB/tree/feature- for RX-improved
Some hardware open source websites;
- https://dl2man.de/
- https://antrak. for org.tr/blog/projeler/usdx-an-for arduino-based-all-mode-hf-transceiver-pcb-iteration-v1-02/
- https://www.qsl.net/py2ohh/trx/usdx/usdx.html
Group;
- https://groups.io/g/ucx/topics

Specifications:
Name: Transceiver
Material: Metal
Size: 80 40 x 100mm
Color: Black
Feature List;
- Simple, fun, versatile QRP SSB HF transceiver with embedded for DSP and capabilities.
- EER Class E driven SSB transmitter stage.
- 12V power supply provides about 5W Max PEP SSB output.
- Full mode support: USB, LSB, CW, AM, FM.
- For DSP : 4000, 2500, 1700, 500, 200, 100, 50Hz passband.
- For DSP functions: Automatic Gain Control (AGC), Noise Reduction (NR), Voice Trigger, Voice Trigger Xmit, for RX Attenuator Attenuator (ATT), TX Noise Gate, TX Driver Control, Volume Control, dBm/S-meter.
- SSB Anti-Sideband/Carrier Suppression Transmit: Better than -45dBc, IMD3 ( for two-tone) -33dBc, Receive: Better than -50dBc.
- Multi-band support, continuously adjustable in 160m-10m band (performance loss from 20kHz to 99MHz).
- Open source firmware, built into the for Arduino IDE; allows experimentation, new features can be added, contributions can be shared via , software complexity: 2000 lines of code.
- Software-based can be used as a fast full-break (QSK and semi-QSK operation), or assists in running in digital mode (no CAT or PTT interface) with for RX/TX switching, external PTT output with TX/PA control delay.
- Simple installation modification, only 8 component changes and 8 wires.
- Lightweight, low-cost transceiver: thanks to the EER transmitter class E, it has high power efficiency (no bulky heat sink required), simple design (no complex balanced linear power required).
- Fully digital and software-based SSB transmit stage: samples microphone input and reconstructs SSB signal (PA key shaping circuit) by controlling phase of SI5351 PLL (small frequency changes over 800kbit/s via I2C) and amplitude of PA ( for PWM via for PWM).
- Fully digital and software-based receiver stage (optional): samples I/Q (complex) signal from quadrature sampling detector digital mixer and performs 90 degree phase shift (Hilbert transform) in software and eliminates by adding sideband.
- Three independently switchable analog front-end receiver attenuators (0dB, -13dB, -20dB, -33dB, -53dB, -60dB, -73dB).
- Receiver noise level MDS: -135 dBm (200Hz BW), 28MHz.
- Receiver front-end selectivity: steep tuning frequency -45dB / decade roll-off +/- 2kHz.
- Blocking for dynamic range: 123dB at 20kHz offset, 78dB at 2kHz offset.
- CW decoder, linear/iambric-A/B keyer.
- VFO A/B + for RIT and Split, and switching of corresponding relay band via I2C.
- CAT support (TS480 subset), audio, keystrokes and display text can be transmitted over CAT.
- This is probably the most cost-effective and easy to build standalone SSB transceiver. Greatly simplified The QCX circuit is simplified (i.e. 50% fewer components to install, 50% fewer components to install, no complicated transformer windings, no alignment procedures required), and is more versatile.

Package Contents:
1 x Transceiver
1 x Handheld Microphone
1 x Audio cable
1 x For Morse key