uSDX-Lite 5W uSDX 80m/60m/40m/30m/20m 5 Band SDR All Mode HF SSB QRP Transceiver

Description

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Product Overview
uSDX-Lite 5W uSDX 80m/60m/40m/30m/20m 5 Band SDR All Mode HF SSB QRP Transceiver
Detail
uSDX Lite is optimized and modified based on the open source work: uSDX/QCX-SSB.
uSDX/QCX-SSB GitHub：
https://github.com/threeme3/usdx
Introduction:
This is a shortwave QRP SSB/CW transceiver. The ultra-small size is easy to carry for outdoor use. It uses a 0.91-inch OLED display and built-in speakers. It supports connecting to a PC and using digital mode software control such as FT8, JS8, and FT4. It supports CW automatic decoding.
Although named uSDX Lite this time, it is not a 8-band uSDX or uSDX+ that simply removes 3 bands. It has a more compact structure design, a more convenient interface design, and a perfect solution to OLED screens. caused by noise interference. So, it's a very useful 5-band HF-band QRP machine.
Features:
- 5 bands covering 80m/60m/40m/30m/20m.
- Excellent PCB layout design in line with high frequency circuit design principles to ensure excellent performance.
- The output power of the 5-band reaches 3-5W power, and the SOT-223 package pads required for the upgrade are
reserved.
- High transmission efficiency, all frequency bands are more than 75% efficient.
- High-precision KDS brand TCXO, the frequency accuracy is better than 1PPM, and the frequency stability is better than
0.5PPM.
- Ultra-small size: 82.8*28.8*114mm (excluding protruding parts).
- Abundant interfaces (CAT, PTT OUT, MIC/KEY, K-head microphone).
- All LPF parts use 100V C0G/NP0 capacitors.
- Use original genuine Omron magnetic latching relays.
- Use lower noise op amp chip than LM4562.
- Built-in speaker with cavity.
- BNC antenna interface.
List of features:
Simple, fun and versatile QRP SSB HF transceiver with embedded DSP and SDR functions;
EER Class-E driven SSB transmit-stage
Approximately 5W PEP SSB output from 13.8V supply
All-Mode support: USB, LSB, CW, AM, FM
DSP filters: 4000, 2500, 1700, 500, 200, 100, 50 Hz passband
DSP features: Automatic Gain Control (AGC), Noise-reduction (NR), Voice-triggered Xmit (VOX), RX Attentuators (ATT), TX
noise gate, TX drive control, Volume control, dBm/S-meter.
SSB opposite side-band/carrier supression Transmit: better than -45dBc, IMD3 (two-tone) -33dBc, Receive: better than -50dBc
Multiband support, continuously tunable through bands 160m-10m (and from 20kHz..99MHz with loss in performance)
Open source firmware, built with Arduino IDE; allows experimentation, new features can be added, contributions can be
shared via Github, software-complexity: 2000 lines of code
Software-based VOX that can be used as fast Full Break-In (QSK and semi-QSK operation) or assist in RX/TX switching for
operating digital modes (no CAT or PTT interface required), external PTT output/PA control with TX-delay
Simple to install modification with 8 component changes and 8 wires
Lightweight and low-cost transceiver design: because of the EER-transmitter class-E stage it is highly power-efficient (no bulky
heatsinks required), and has a simple design (no complex balanced linear power amplifier required)
Fully digital and software-based SSB transmit-stage: samples microphone-input and reconstruct a SSB-signal by controlling
the phase of the SI5351 PLL (through tiny frequency changes over 800kbits/s I2C) and the amplitude of the PA (through PWM
of the PA key-shaping circuit)
Fully digital and software-based SDR receiver-stages (optionally): samples I/Q (complex) signal from Quadrature Sampling
Detector digital mixer, and performs a 90-degree phase-shift mathematically in software (Hilbert-transform) and cancels out
one side-band by adding them
Three independent switchable analog front-end receiver attenuators (0dB, -13dB, -20dB, -33dB, -53dB, -60dB, -73dB)
Receiver Noise floor MDS: –135 dBm at 28MHz (in 200Hz BW)
Receiver Front-end selectivity: steep -45dB/decade roll-off +/-2kHz from tuned-frequency
Blocking dynamic range: 20kHz offset 123dB, 2kHz offset 78dB
CW decoder, Straight/Iambic-A/B keyer
VFO A/B + RIT and Split, and corresponding relay band-filter switching via I2C
CAT support (TS480 subset)
Note: if you need the user manual or more information, please feel free to contact our customer service.
Pacakge included:
1 x USDX-LITE
1 X Handheld Mic
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Returns Policy
1. Customer satisfaction is our top goal. We believe our items are so outstanding. All products are quality checked. They are new and in good condition when shipped to our customers. We are convinced you will be happy with your Purchase.
2. If product is defective or damage upon arrival, or wrong product shipped, please contact us immediately. Returns accepted within 14 days of delivery date and item must be in original new condition, not worn or altered in any way with attached tags & wrap. Otherwise deal is final. Return shipping must be paid by buyer.
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On May 20, 2022 at 06:59:28 PDT, seller added the following information: