USOTA-ATU USDX SDR Transceiver Mode 8 Band HF Ham Radio QRP CW Transceiver F8E5

  
USOTA-ATU USDX SDR Transceiver Mode 8 Band HF Ham Radio QRP CW Transceiver F8E5. USDX: HF QRP SDR Transceiver: uSDX is optimized and modified based on Guido PE1NNZ's open source project uSDX/QCX-SSB. USDX is a shortwave QRP SSB/CW transceiver.

With 1602 LCD screen and ultra-small size, it is easy to carry. ATU: (Automatic Antenna Tuner Unit):Automatic Antenna Tuner Unit is a miniaturized clone of David Fainitski, N7DDC's 7X7 ATU100 automatic antenna tuner unit adapted for QRP operation up to 10 watts. USDX:8 bands: 3.5MHz; 5.3MHz; 7MHz; 10MHz; 14MHz; 18MHz; 21MHz; 29MHz. Emission efficiency: higher than 85% (3.5MHz; 5.3MHz; 7MHz; 10MHz; 14MHz); higher than 80% (18MHz and 21MHz); higher than 70% for 29MHz. Connect to PC, use FT8, JS8, FT4 and other digital mode software control, support CW automatic decoding It can reach 3-5W power in 8 bands and can freely upgrade the PA module (TO-220) High-precision TCXO for KDS, frequency accuracy 1PPM, frequency stability 0.5PPM.

Core board, RF PA board and ATU board to avoid own signal interference. Ultra-small size: 100 x 90 x 57mm/3.9 x 3.5 x 2.2inch(without protrusions) All parts use 100V C0G/NP0 capacitors Use LM4562 or LM833 or LT6231 op amp chip Rich interfaces: HEADPHONE, PTT OUT, MIC/PTT, SPK/MIC BNC antenna interface (with BCN-SL16 adapter, easy to match antenna) External power supply: 12.6VDC (13.8VDC power adapter) 2.