Product Description: * new and high quality * Made of high quality materials, * This is a shortwave QRP SSB/CW transceiver. It is ultra-small and easy to carry outdoors. It uses a 1602N LCD screen and a built-in speaker. It supports connection to a PC. It can be controlled by digital mode software such as FT8, JS8, FT4, etc., and supports CW automatic decoding. notes: * This product has no built-in battery and no power supply. It needs to be equipped by the user. Please make sure you don't mind before purchasing!!! * The power interface is 5.5mm, the power supply voltage is 12.6V, and both 1A and 2A can be used. * Battery specifications are 11.1V/12.6V 4000mAh lithium battery. * You can purchase a power supply or battery based on the above values, thank you. Features: * 8 tracks covering 80m/60m/40m/30m/20m/17m/15m/10m * Excellent PCB layout design, in line with high-frequency circuit design principles, ensuring excellent performance * Whether using the built-in battery or an external 13.8V power supply, 8 levels of 3-5W power can be achieved, and the SOT-223 and TO-220 Pack for pads required for upgrades are reserved. * High emission efficiency, 80m/60m/40m/30m/20m efficiency is greater than 80%, 17m efficiency is greater than 70%, 15m/10m efficiency is greater than 60% * High-precision KDS TCXO, frequency accuracy is better than 1ppm, frequency stability is better than 0.5ppm * Ultra-small size: 83*38*124mm(excluding protruding parts) * Rich interfaces(cat, ptt out, mic/key, k-head mic) * All LPF parts use 100v c0g/np0 capacitors * Use gen uine Om ron orig inal magnetic latching relay * Use an op amp chip with lower noise than LM4562 * Built-in cavity speaker * BNC antenna interface usdx+ is updated as follows: - Moved the headphone and power key/microphone j ack to the front panel for easier access to the headphone and power buttons. - Move the keys to the bottom of the LCD screen for a larger touch area and a more comfortable keystroke experience. - The built-in speaker effect to double the sound! - PCB reserves various for pads, ready for use out of the box, and can be used as a template for DIY learning - Quickly change qrp CW frequency. -Supports CW sidetone volume adjustment. - Supports CW sidetone adjustment. function list: 1. Support all modes: usb, lsb, cw, am, fm(ssb mode has good receiving effect, but poor transmitting effect. AM and FM modes are free, but the effect is not good) Filter for DSP filter: 4000, 2500, 1700, 500, 200, 100, 50hz passba 2. Function for DSP functions: automatic gain control(AGC), noise reduction(NR), Xmit voice trigger(), RX attenuator(ATT), TX noise gate, tx unit control, volume control, dbm/s meter. 3. Sidebar/Carrier Suppression SSSSB Transmit: Better than-45dbc, imd3(dual tone)-33dbc, Receive: Better than-50dbc 4. Supports multi-ba support, continuously adjustable 10m within the 80m frequency range(from 20khz..99mhz, loss performance) 5. Open source firmware, built using Ardu ino IDE; allows experimentation, new features can be added, contributions can be shared via github, software complexity: 2000 lines of software-based Vovox cod e available for fast full control(qsk and half-qsk operations) or rx/ auxiliary switch tx for external control of ptt/pa output using fully digital tx delay stage and software based ssb level transmitter in digital mode(no need for cat or ptt interface): control phase of sill si5351(via 800kbits under i2c/s for switching) and the amplitude of the PA(through the PWM PA key shaping circuit) 6. Software-based all-digital receive stage(optional): I/Q(complex) signals are sampled from a quadrature sampling detector digital mixer and mathematically performed in software by 90-degree phase shifting(Hilbert special transform) and three indepe ndent switchable analog faders(0db,-13db,-20db,-33db,-53db,-60db,-73db) from the pre-receiver by adding atten sideba nds 7. Receiver noise floor mds:-135dbm at 28mhz(200hz bw) 8. Receiver front-end selectivity:+/-2khz steep 45db/ten times tuning frequency rolling 9. Blocking dynamic range: 20khz offset 123db, 2khz offset 78db 10.cw decoder, direct/iambic-a/b keyer 11.vvfo a/b+ rit and split, corresponding relay through i2c 12.cat supports cat with filter switch(using for Kenwood TS-480 protocol) Specification: Type: hf qrp transceiver Mode: Single Sideba/Continuous Wave RF output: 13.8v DC output, maximum 10w Frequency range: 3.5-30mhz Built-in microphone Antenna/Connector: 50ohms/so-239 Package Included: 1 x usdx+ transceiver 1 x microphone 4 x machine foot for pads Note: 1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2.Please allow slight manual measurement deviation for the data. _x000D_ _x000D_