HamGeek uSOTA-ATU USDX HF QRP SDR Transceiver Built-in ATU-100 Antenna Tuner with Dual OLED Display uSDX_ATU: 1. 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 infamous 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 better than 1PPM, frequency stability better than 0.5PPM - Independent 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 2.2 (without protrusions) - All LPF parts use 100V C0G/NP0 capacitors - Use original 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. Headphone Jack (3.5 mm): Tip-Audio out Ring-Audio out Sleep-GND 2. MIC/PTT (KEY) Jack (3.5 mm): Tip-Mic input Ring-PTT Sleep-GND CW-KEY INPUT MODE: Tip-DAH Ring-DIT Sleep-GND 3. SPK/MIC Jack (3.5 mm): TIP: SPEAKER RING 1: MIC RING 2: PTT SLEEVE: GND 4. PTT OUT Jack (3.5 mm): Tip-SSR output Ring-SSR output Sleep-GND Package Included: - 1 x Main Unit uSDX_ATU - 1 x 12.6VDC Power Adapter (or 13.8VDC) - 1 x BNC-SL16 Adapter - 1 x BNC-BNC Cable - 1 x UV-3R Handheld Microphone (including MIC, PTT, SPEAKER functions) Note: - Note that there is no built-in battery or built-in speaker.
External power supply 13.6v is required. Usually it cost about 35USD-50USD. If you receive defective item, please kindly notify us within 14 days.