5W usDX SDR QRP Transceiver QCX-SSB to SSB 3-Band All Mode High Frequency Transceiver with Handheld Microphone<br> Name: SDR Transceiver<br> Material: metal<br> Radio frequency output: 5W maximum PEP SSB output power at 12 V exit direct current in<br> Frequency bands: 160m-10m<br> Full mode support: usb, lsb, cw, am, frequency modulation<br> DSP filter: 4000, 2500, 1700, 500, 200, 100, 50Hz passband<br> DSP function: automatic gain control (AGC), noise reduction (NR), voice trigger, voice trigger Xmit (VOX), RX attenuator attenuator (ATT), TX noise gate, TX driver control, volumes control, dBm/S-meter.<br> SSB reverse sideband/carrierwave suppression transmission: better than -45dBc, IMD3 (two tones) -33dBc, reception: better than -50dBc.<br> Multi-band support: continuously adjustable in the 160m-10m frequency band (and performance loss from 20kHz to 99MHz).<br> Open source firmware, built in for IDE; allows experimentation, can add new functions, can share contributions through Github, software complexity: 2000 lines of code.<br> SSB emitter stage based entirely on digital and software: By controlling the phase of the SI5351 PLL (via the tiny frequency change of I2C over 800kbit/s) and the amplitude of the PA (via the PWM of PWM) to sample the microphone input and reconstruct the SSB signal. PA key shaping circuit).<br> Noise floor MDS: -135 dBm at 28MHz (in 200Hz BW)<br> Front-end selectivity: steep -45dB/decade roll-off +/-2kHz from tuned-frequency<br> Blocking dynamic ranges: 20kHz offset 123dB, 2kHz offset 78dB<br> CW decoder, Straight/Iambic-A/B keyer<br> Package size: 60 * 60 * 50mm / 2.36 * 2.36 * 1.97in<br> Package weight: 550g / 1.21lb<br> <br> <br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia