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eBay Description 5W usDX SDR QRP Transceiver QCX-SSB to SSB 3-Band All Mode HF Transceiver with Handheld Microphone USDX Software Opensource: – https://github.com/threeme3/QCX-SSB/tree/feature-rx-improved Some Hardware Opensource Sites: – https://dl2man.de/ – https://antrak.org.tr/blog/projeler/usdx-an-arduino-based-sdr-all-mode-hf-transceiver-pcb-iteration-v1-02/ – https://www.qsl.net/py2ohh/trx/usdx/usdx.html Group: – https://groups.io/g/ucx/topics Description: – This is a shortwave QRP SSB/CW transceiver. It boasts 1602 screen, built-in mic, built-in speaker! It can be connected to an automatic key, and can be decoded by CW. Features: – Using IRF series launch tube, durable – Can be used by connecting the antenna (BNC connector) – 3 bands. Power standing wave digital display! – Dimensions: 80 x 40 x 100mm – Provide ft8 option connector later – Aluminum shell laser marking Function List: – Simple, interesting and versatile QRP SSB HF transceiver with embedded DSP and SDR functions. – EER E-level driven SSB launch stage. – 12V power supply provides about 5W Max PEP SSB output. – Full mode support: USB, LSB, CW, AM, FM. – DSP filter: 4000, 2500, 1700, 500, 200, 100, 50Hz passband. – DSP function: automatic gain control (AGC), noise reduction (NR), voice trigger, voice trigger Xmit (VOX), RX attenuator attenuator (ATT), TX noise gate, TX driver control, volume control, dBm/S-meter. – SSB reverse sideband/carrier suppression transmission: better than -45dBc, IMD3 (two tones) -33dBc, reception: better than -50dBc. – Multi-band support, continuously adjustable in the 160m-10m frequency band (and performance loss from 20kHz to 99MHz). – Open source firmware, built in for Arduino IDE; allows experimentation, can add new functions, can share contributions through Github, software complexity: 2000 lines of code. – Software-based VOX can be used as a fast full invasive (QSK and semi-QSK operation), or to assist in running in digital mode (without CAT or PTT interface) for RX/TX switching, external PTT output with TX/PA control-delay. – Simple installation modification with 8 component changes and 8 wires. – Lightweight, low-cost transceiver: Thanks to EER transmitter E-level, it has high power efficiency (no bulky heat sink required), and simple design (no need for complex balanced linear power amplifiers). – SSB transmitter stage based entirely on digital and software: By controlling the phase of the SI5351 PLL (via the tiny frequency change of I2C over 800kbit/s) and the amplitude of the PA (via the PWM of PWM) to sample the microphone input and reconstruct the SSB signal. PA key shaping circuit). – Fully digital and software-based SDR receiver stage (optional): sample the I/Q (complex) signal from the quadrature sampling detector digital mixer, and perform a 90-degree phase shift in the software (Hilber transform) and eliminate one by adding sidebands. – Three independent switchable analog front-end receiver attenuators (0dB, -13dB, -20dB, -33dB, -53dB, -60dB, -73dB). – Receiver noise level MDS: -135 dBm (200Hz BW) at 28MHz. – Receiver front-end selectivity: steep tuning frequency -45dB / ten times roll-off +/- 2kHz. – Blocking dynamic range: 20kHz offset 123dB, 2kHz offset 78dB. – CW decoder, straight/Iambic-A/B keyer. – VFO A/B + RIT and and Split, and switch the corresponding relay band filter through I2C. – CAT support (TS480 subset), you can stream audio, press keys, and display text through CAT. – This is probably the most cost-effective and easy to build standalone SDR/SSB transceiver. Great simplification Simplifies the original QCX circuit (that is, reduces the installation components by 50%, reduces the installation components by 50%, does not require complex transformer windings, and does not require alignment procedures), and is more versatile. Package Included: – 1 x Transceiver – 1 x Handheld Microphone Payment Terms 1. We accept PayPal,Payoneer,Visa Card,Google pay,Credit card etc. 2. We ship to your eBay or Paypal address. Please make sure your eBay and Paypal address is correct before you pay. Shipping Terms 1. We will process the order within the handling time ,if you have any questions, please contact us via eBay message or email. 2. For remote regions of DHL/FedEx…, extra shipping costs might be charged. Usually it costs about 30USD-50USD. We will contact you if shipping company informed us your address belongs to remote area. Thanks for your understanding. Return Terms If you receive the item that not satisfied or defective, please do not open case and kindly notify us within 30 days. We will guide you the returning process for replacement or refund. Custom Duties & Taxes 1. It is buyer’s responsibility to cover the import duties, taxes.We do not charge any taxes and fees, and the possible taxes and fees will be collected by the platform or by third parties such as customs and carriers. 2. Please check with your country’s customs office and inform us what/how much should declare before shipping. Feedback 1. Please kindly leave us a positive feedback and 5 star DSR if you satisfied with our product and service. Please feel free to contact us firstly if you have any problem with your order, we are responsible and credible seller and will solve the issue it for you asap. 2. If you are dissatisfied for any reason, please don’t be quick to leave us neutral or negative feedback. 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