USDR/USDX HF QRP SDR Transceiver SSB/CW Transceiver 8-Band Radio W/ Mic Antenna. Features: Multifunctional Indication System: It features power and SWR (Standing Wave Ratio) indications, providing critical operational parameters for users to ensure effective communication. High-Capacity Battery Life: Equipped with a 6000mAh high-capacity battery, it guarantees long-lasting outdoor communication needs without frequent charging. Adjustable CW Tone and Sidetone: Both CW tone and sidetone volume can be adjusted to meet personalized requirements in different communication environments. Durable Transmitter Tube Design: Utilizing IRF series transmitter tubes, which are less prone to damage compared to BS170, enhancing the device’s service life. Convenient Handheld Operation: With a side PTT button and built-in microphone, it supports handheld use, facilitating outdoor communication activities. Wide Multi-Band Coverage: Supporting 8-band SSB/CW communication, covering the frequency range from 160m to 10m, meeting various communication needs. Efficient DSP and SDR Capabilities: Built-in DSP and SDR functions provide advanced communication features such as automatic gain control, noise reduction, and voice triggering. High Power Efficiency and Low Cost: Adopting EER (Electronic Emitter Regulator) technology, it improves power efficiency without the need for a bulky radiator, reducing costs. Digital Software-Controlled SSB Signal: The SSB transmitter phase is fully controlled by digital and software, ensuring stable and reliable signal quality. Optional Full-Digital SDR Receiver: An optional full-digital and software-based SDR receiver level provides higher communication performance and flexibility. High Selectivity of Pre-Receiver: The pre-receiver features steep frequency adjustment characteristics, improving the selectivity and clarity of communication signals. Powerful CW Decoder and CAT Support: It supports CW decoding and multiple keying modes, as well as CAT streaming for audio, key pressing, and display text, enhancing communication functionality and compatibility. Economical and Easy-to-Build Transceiver: Simplified from the original QCX circuit, with a 50% reduction in installation components and no need for complex transformer windings or wiring procedures, lowering building difficulty and cost. Specifications: Power Supply: 13.8V 10W Frequency Range: 160m-10m Battery Capacity: 6000mAh Filters: 4000Hz, 2500Hz, 1700Hz, 500Hz, 200Hz, 100Hz, 50Hz Three independently switchable analog attenuators from the pre-receiver: 0dB, -13dB, -20dB, -33dB, -53dB, -60dB, -73dB Mds receiver noise level: -135dbm (200hz bw) at 28mhz Pre-receiver selectivity: steep frequency adjustment -45db/ ten times roll-off +/- 2khz Blocking dynamic range: 20khz offset 123db, 2khz offset 78db DSP functions: Controlling Automatic Gain Control (AGC), Noise Reduction (NR), Voice Activation (VA), Voice Activation for Transmission (VA xmit), Receiver Attenuator (ATT), Transmit (TX) Noise Gate, TX Drive Control, Volume Control, and DBM/S-Meter Suitable Activities: For SOTA (Summit on the Air) and for POTA (Parks on the Air), as well as other scenarios where lightweight and efficient communication equipment is required Interface Introduction: Charging: Built-in lithium battery charging port. Only use the included charger! It is forbidden to use chargers by other producers. DC13.8V/3A: External power interface Key: Automatic key body connection (a, b, single key) PA: External power amplifier, PTT signal MIC: External microphone interface UART: Serial communication (TS-480 compatible command) SPK: External speakers Package Included: 1 x Transceiver 1 x Power Adapter 1 x Mic 1 x Tuner 1 x Antenna. We usually respond within 24 hours. We recommend that you try again after 3-4 days. Always believe we can figure things out with communication, if it comes to return, the pacakge must be intact and the same as you receive. We will reply you ASAP. We strive to answer all questions and resolve any problems as quickly as possible. 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 give us the opportunity to resolve any problem. We understand the concerns and frustrations you might have, and will try our best to resolve the issues. We care about our valued customers, and will always try to help you.