uSDX 80m/40m/20/17m/15m/10m 6 Bands USDR HF QRP SSB SDR Transceiver

Description: uSDX 80m/40m/20/17m/15m/10m 6 Bands USDR HF QRP SSB SDR Transceiver DescriptionNote : 6BandsSupport 6 frequency bands: 80 meters range (3.5mhz); 40 meters range (10mhz); 20 meters range (14mhz); 17 meters range (18mhz); 15 meters range (21mhz); 10m range (29mhz); Description:GitHub: https://github.com/threeme3/QCX-SSB/tree/feature-rx-improvedSize: 38*88*155mm(Aluminum case)Standby current: 13.8vdc 80--90maFull HF reception, commonly used 6-band transmission design:80m/40m/20/17m/15m/10mOver view:This is a shortwave QRP SSB/CW transceiver.The ultra-small size makes it easy to carry for outdoor use.It adopts 0.91inch OLED screen.Support to connect to PC and use FT8, JS8, FT4 and other digital mode software control, and support CW automatic decoding.Function:Simple, fun and versatile QRP SSB HF transceiver with embedded DSP and SDR functions;EER Class-E driven SSB transmit-stage;Approximately 5W PEP SSB output from 13.8V supply;All-Mode support: USB, LSB, CW, AM, FM;DSP filters: 3000, 2500, 1700, 500, 200, 100, 50 Hz passband;DSP features: Automatic Gain Control (AGC), Noise-reduction (NR), Voice-triggered Xmit (VOX), RX Attentuators (ATT), TX noise gate, TX drive control, Volume control, dBm/S-meter;SSB opposite side-band/carrier supression Transmit: better than -45dBc, IMD3 (two-tone) -33dBc, Receive: better than -50dBc;Multiband support, continuously tunable through bands 160m-10m (and from 20kHz..99MHz with loss in performance);Open source firmware, built with Arduino IDE; allows experimentation, new features can be added, contributions can be shared via Github, software-complexity: 2000 lines of code;Software-based VOX that can be used as fast Full Break-In (QSK and semi-QSK operation) or assist in RX/TX switching for operating digital modes (no CAT or PTT interface required), external PTT output/PA control with TX-delay;Simple to install modification with 6 component changes and 6 wires;Lightweight and low-cost transceiver design: because of the EER-transmitter class-E stage it is highly power-efficient (no bulky heatsinks required), and has a simple design (no complex balanced linear power amplifier required);Fully digital and software-based SSB transmit-stage: samples microphone-input and reconstruct a SSB-signal by controlling the phase of the SI5351 PLL (through tiny frequency changes over 800kbits/s I2C) and the amplitude of the PA (through PWM of the PA key-shaping circuit);Fully digital and software-based SDR receiver-stages (optionally): samples I/Q (complex) signal from Quadrature Sampling Detector digital mixer, and performs a 90-degree phase-shift mathematically in software (Hilbert-transform) and cancels out one side-band by adding them;Use high-precision TCXO, frequency accuracy is better than 1PPM, frequency stability is better than 0.5PPM;Three independent switchable analog front-end receiver attenuators (0dB, -13dB, -20dB, -33dB, -53dB, -60dB, -73dB);Receiver Noise floor MDS: –135 dBm at 28MHz (in 200Hz BW);Receiver Front-end selectivity: steep -45dB/decade roll-off +/-2kHz from tuned-frequency;Blocking dynamic range: 20kHz offset 123dB, 2kHz offset 78dB;CW decoder, Straight/Iambic-A/B keyer;VFO A/B + RIT and Split, and corresponding relay band-filter switching via I2C;CAT support (TS480 subset), possibility to stream audio, keys, display-text over CAT;Probably the most cost effective and easy to build standalone SDR/SSB transceiver that you can find. Very much simplifies the original QCX circuit (i.e. 50% less components to install, no complex transformer windings, no alignment procedure) and more versatile in use;Use original genuine LM4562 op amp chip;All LPF parts use 100V C0G/NP0 capacitors;SMA-kwe antenna interfacePackage Included:1 x TransceiverPayment1.We accept PayPal only. 2.All major credit cards are accepted through secure payment processor PayPal. 3.Payment must be received within 7 business days of auction closing. 4.We ship to your eBay or Paypal address. Please make sure your eBay and Paypal address is correct before you pay.Shipping1.We ship to your eBay or Paypal address. Please make sure your eBay and Paypal address is correct before you pay. 2.Items will be shipped within 1-3 business day when we received payment. 3.Delivery time depends on destination and other factors; 4.International buyers please note: a.Import duties, taxes and charges are not included in the item price or shipping charges. These charges are buyer’s responsibility. We will try our best to reduce the risk of the custom duties. b.Please check with your country's customs office to determine what these additional costs will be prior to buying. 's customs office to determine what these additional costs will be prior to buying. Returns policy1.If the item is not as described or damaged in transportation, please send it back within 7 days upon date of receipt2.For defective item, we guarantee free exchange or full refund within 30 days from the day of placing order3.Buyers pay shipping fees at their own cost to return products for exchange or refund. We will be responsible for the postage of replacements4.Items must be unused, in original packaging and include all parts, accessories and packaging5.When we receive your returned item, we will investigate the situation and consider to offer replacement or refund according to the situation Terms of sales1. All the items will be tested before shipping. 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Price: 148 USD

Location: shenzhen

End Time: 2024-03-14T13:22:17.000Z

Shipping Cost: 10 USD