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Location: Shenzhen
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Item: 186754342937

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HAMGEEK:HAMGEEK
Type:Ham Radio Transceiver
Unit Type:Unit
HAMGEEK USDX-CW:HAMGEEK USDX-CW
Unit Quantity:1

Description HAMGEEK USDX-CW 5W usDX SDR QRP Transceiver QCX-SSB to SSB 15m/20m/40m 3-Band All Mode HF Transceiver Advantages: * Not less than 5W in 15m, 20m and 40m bands * With a firmware upgrade interface. Through this interface, you can update the firmware for HAMGEEK USDX-CW or HAMGEEK USDX-FT8 transceiver * With an aluminum alloy housing * Later, the firmware of CW and FT8 versions can be flashed for each other Attention: * Menu 8.6 is the CAT data switch. Please turn it off when FT8 is not used. * When the firmware is for CW version, please turn off the CAT data switch in menu 8.6 to avoid the screen displaying incomplete frequency text (mainly due to a bug in the firmware). About Bluetooth: * The CW and FT8 versions support Bluetooth. * CW version: Turn off the Bluetooth function if you do not want to use it. * FT8 version: Menu 8.6 CAT data switch should be turned on. At the same time, the radio in Bluetooth mode should be powered by the physical Bluetooth switch. In this way, the radio’s Bluetooth function can be used. Description: HAMGEEK USDX SDR QRP transceiver is a 3-band HF transceiver. It is optimized and modified based on the open-source work uSDX/QCX-SSB. The open source URL is:Please contact us for it,thanks It supports 15m, 20m and 40m bands. The HF transceiver supports USB, LSB, CW, AM and FM (AM and FM modes are complimentary features from open source authors. AM mode has poor practical results, and the FM function late program has not been developed yet). The transmit power of HAMGEEK transceiver is up to 5W at 13.8V. Using TCXO, its operating frequency stability is up to 0.5PPM. List of Features: * 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 Attenuator (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 * Open source firmware, built with Ar-duino 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 hardware design with only 4 ICs, a micro-controller and few transistors/passives * 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 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 * Optional SWR/Power measurement and PA efficiency/overload control * Probably the most cost effective and easy to build standalone SDR/SSB transceiver that you can find. Very much simplified circuit and versatile in use Schematic: Specifications: * Working voltage: DC 13.8V 2A (Note: it is easy to burn out the radio if the voltage is too high) * DC power plug specifications: 5.5*2.1 (Attention: Positive inside and negative outside. Reverse connection is not allowed) * Operating frequency band: 40m, 20m and 15m bands * Receiver sensitivity: ≥100dbm * Transmit power: 5W * Audio output power: 2W * Headphone jack: With * Morse key jack: With (Plug specification is 3.5mm. It supports manual and automatic CW keys, set by yourselves in the menu. Manual CW key is supported by default) * Antenna interface type: BNC Description of the Functions of the USDX Menu: Common menu function keys and options: 1.1. Volume preamplifier 1.2. Mode selection 1.3. Bandpass selection 1.4. Band selection 1.8. Gain attenuation for receiving 1.12. Display category selection 2.2. Sidetone frequencies 600Hz and 700Hz 2.4. Transmit and receive delay ON 2.5. Speed of automatic CW keyer 2.6. Selection of CW key types 2.7. Left/right hand habit selection 2.8. ON is for Morse code trainer, and OFF is for TX 2.9. Sidetone volume 0-16 3.1. Voice-activated PTT 3.2. Voice-activated sensitivity 3.3. Voice-activated volume 4.1. Automatic call interval time 4.2. Automatic calls 8.1. Minimum voltage of the grid of transmitting tube: 0-255 8.2. Maximum voltage of the grid of transmitting tube 8.3. Reference frequency adjustment. TCXO 0.5PPM generally does not need to be adjusted 8.6. CAT data switch. It should be turned off if FT8 is not used. Package Included: * 1 x HamGeek transceiver * 1 x Handheld microphone * 1 x Power adapter Packaging Details: * Weight: 0.6kg FAQ: Q: Does the product include batteries? What is the capacity of the battery? A: The product does not contain batteries. The HamGeek transceiver should be plugged into DC 12V or 13.8V. The voltage should not be too high because it is easy to burn out the radio. Note: * Batteries are not included in the package. 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. We work hard to make sure EVERY CUSTOMER 100% SATISFIED and resolve any problem for you and always leave positive feedback to all our customers.On Oct 29, 2024 at 20:52:38 PDT, seller added the following information:

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