$105.2 Buy It Now or Best Offer
free,30-Day Returns
Seller Store shengjieda
(183) 98.4%,
Location: 101111
Ships to: US,
Item: 364604902139
Restocking Fee:No
Return shipping will be paid by:Buyer
All returns accepted:Returns Accepted
Item must be returned within:30 Days
Refund will be given as:Money Back
Unbranded:Unbranded
Type:Transceiver
Manufacturer Warranty:2 Years
Color:Black
USDR:USDR
Year Manufactured:2024
Country/Region of Manufacture:China
USDR SDR Transceiver All Mode 8 Band HF Ham Radio QRP CW Transceiver 80M/60M/40M/30M/20M/17M/15M/10M Description: uSDR is optimized and modified based on the open source work uSDX/QCX-SSB. uSDX/QCX-SSB GitHub:github.com/threeme3/QCX-SSB/tree/feature-rx-improved This is a shortwave QRP SSB/CW transceiver. The ultra-small size makes it easy to carry for outdoor use. It adopts 1602N LCD screen, built-in speakers. Support to connect to PC and use FT8, JS8, FT4 and other digital mode software control, support CW automatic decoding. Features: – 8 band coverage 80m/60m/40m/30m/20m/17m/15m/10m – Excellent PCB layout design in line with high-frequency circuit design principles to ensure excellent performance – Can reach 3-5W power in 8 bands and reserve TO-220 package pads required for upgrades – High emission efficiency, 80m/60m/40m/30m/20m efficiency is higher than 85%, 17m/15m efficiency is higher than 80%, 10m efficiency is higher than 70% – High-precision for KDS brand TCXO, frequency accuracy is better than 1PPM, frequency stability is better than 0.5PPM – Independent core board and RF board to avoid own signal interference. – Ultra-small size: 82.8 x 28.8 x 110mm/3.3 x 1.1 x 4.3″ (excluding protruding parts) – Rich interfaces (CAT, PTT OUT, MIC/KEY, K-head microphone) – All LPF parts use 100V C0G/NP0 capacitors – Use original genuine Omron magnetic latching relay – Use original genuine LM4562 or LM833 op amp chip – Built-in speaker with cavity – BNC antenna interface Function List: – 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: 4000, 2500, 1700, 500, 200, 100, 50 Hz passband – DSP features: Automatic Gain Control (AGC), Noise-reduction (NR), Voice-triggered Xmit (VOX), RX Attenuators (ATT), TX noise gate, TX drive control, Volume control, dBm/S-meter – SSB opposite side-band/carrier suppression 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 IDE for Arduino; 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 8 component changes and 8 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 – Three independent switchable analog front-end receiver attenuators (0dB, -13dB, -20dB, -33dB, -53dB, -60dB, -73dB) – Receiver Noise level 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) Package Included: – 1 x Transceiver – 1 x MicNote:The device not include batteries, need to prepare charger by yourslef. About Payment: 1. We accept PayPal. 2.we have no Combined shipping when you bid much of order. Thanks for your kindly understand. 3. Payment must be received within 7 days after auctions ended. Please do not bid if you are not intending to buy. Unpaid dispute will be filed to eBay for the non payable bidders. 4. We do not combine shipping cost.thanks again. About Shipping: 1. All items will be arranged shipping within one business day upon payment cleared. 2. Ship by Standard Flat Rate Shipping Service,under normal circumstance, .In most cases, international shipping takes around 12-24 business days. We try our best to provide you the most reliable, affordable way of shipping service. But sometimes international delivery is highly depended on the local customs and post service. If you do not receive your item on time, please contact us immediately for further assistance. We will be responsible for any damages or losses incurred in the shipping process. About Returens: 1. If you are dissatisfied with our item or service, then please follow the good eBay practice to contact us by ebay message before leaving any feedback. We are committed to resolve all issues in a friendly and satisfactory manner. 2. We always reply to ebay messages within 1-2 business days. If you do not get a response from us, then please check your ebay message. we only reply ebay message, no send email. 3. Original and return shipping fee will not be refunded or reimbursed under all circumstances. You must agree and acknowledge this term if you bid for this item. Therefore, please do not complain about having to ship back at your own expense. Contact Us: 1. If have any question, Please contact us by ebay message. Reply within 24hours. 2. We care about our valued buyers, if you have any questions, our Customer Service staffs will be very glad to help you. We try our best to reply to your emails as soon as possible, however, due to high volume of daily incoming emails and time zone difference, we may not be able to reply your emails immediately. Please allow 24 business hours for us to response. Feedback: Dear buyers, we appreciate your business, if you are satisfied with our service, please leave us a positive feedback and rate the details of the transaction (Detailed Seller Ratings) with a «PERFECT 5 STARS». [When you rate the shipping time part please take international transit into consideration.] Your recognition will make us more confident to develop business and serve you better. Our goal is to make sure you are a happy buyer and pleasant shopping with us. Please give us ebay message before leaving any 1 or 2 ratings, neutral, negative feedback or open any dispute. We understand the concerns and frustrations you might have, and will do our endeavor to resolve the issues. 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