uSDR/USDX Mini 8-Band SSB/CW QRP Transceiver for Amateur Radio

Packing size: 20 * 15 * 10cm Product size: 13.3 * 7.5 * 4cm without protruding parts, packaging weight: 920g

The advantages of our machines are:

1. Have power and Tsukuba swr indication, which is very important
2. Large battery capacity: 6000mAh!!
3.cw tone can be adjusted!!
4.cw side volume can be adjusted!
5. The power mos tube is not bs170! It is not easy to break!
6. Exquisite aluminum oxide shell!
7. Side ptt! Built-in mic! Can be used hand-held!
Please know!!

Software:
https://github.com/threeme3/QCX-SSB/tree/feature-rx-improved

uSDR Mini 8-Band SSB/CW QRP Transceiver

uSDR/uSDX is a compact 8-band SSB/CW QRP transceiver with a built-in lithium battery, built-in microphone, PTT button and very low RX current consumption.It is a good partner for SOTA, POTA or any other portable activity.

Description:
This QRP SSB/CW shortwave transceiver has a 1602 screen, built-in battery, charger, built-in microphone, speaker, can be connected to automatic buttons, and can also be CW decoded.

productFeatures:

1. Using IRF series launch tube, durable.

2. Can be used to connect the antenna (instrument base).

3. Aluminum laser shell marking, all aluminum buttons, translucent silicone buttons.

4．The original QCX circuit is greatly simplified, with 50% fewer installed components. No complex transformer windings or wiring procedures are required, making it the most cost-effective and easy to construct.

(Receive green and red)

5: -8 band. Radio wave digital display! Maximum external power supply 13.8v 10w! Built-in 12.6v battery

Feature List:
- Simple, fun and versatile cxp ssb high frequency transceiver with built-in dsp and sdr capabilities
-Eer e-stage drive ssb launch phase
- 13.8V power supply about 10w ssb pep output
- Filter:4000,2500,1700,500,200,100,50hz passband
-Filter:4000,2500,1700,500,200,100,50hz passband
-dspFunction:Control automatic gain (agc), noise reduction (nr), voice trigger, voice trigger xmit, attenuator rx (att), tx noise gate, tx drive control, volume control, dbm/s-meter
- Ssb reverse sideband/carrier suppression transmission:Better than -45dbc, imd3 (dual tone) -33dbc, receiving:Better than -50dbc
-Multi-band support, continuously adjustable in the frequency range of 160m-10m (loss of 20kHz performance).. 99MHz
- Open-source firmware, built into IDE; allows experimentation, new features can be added, contributions can be shared via github, software complexity: 2000 lines of code
V-based software can be used for fast and complete rogue operations (qsk and semi-qsk), or assisted execution in digital mode (no cat or ptt interfaces) for rx/tx switching, with tx/pa delay control, external ptt output - simple installation and modification, 8 component changes and 8 lines
Lightweight, low-cost transceiver: Thanks to the eer electronic level transmitter,It has high power efficiency (no bulky heatsink required) and a simple design (no complex balanced linear power amplifier required).
SSB transmitter phases are entirely digital and software-based.Controls the phase of the si5351 PLL (by small i2c frequency changes over 800kbit/s) and the amplitude of the PA (by going from pwm to pwm) to test the microphone input and reconstruct the SSB signalPA)
- All-digital and software-based SDR receiver level (optional):I/Q signals (complex numbers) are sampled from a quadrature sample detector digital mixer, where a 90-degree phase shift (Silber transform) software is performed and sidebands are added or removed

Three switchable analog governors independent of the front receiver

0db,-13db,-20db,-33db,-53db,-60db,-73db

-Mds receiver noise level:-135dbm (200hz bw) at 28mhz

- Front receiver selectivity:Steep frequency adjustment - 45db/ten rolls off +/- 2kHz

- Blocking dynamic range:20KHz offset 123dB, 2KHz offset 78dB

-CW decoder, direct/iambic lattice -a /b keying -Vfo a/b + rit and crossover, as well as switching corresponding relays with filters via i2c-Cat support (TS480 subset), audio can be streamed via CAT, keys and display text

This is probably the most e****mical and easiest stand-alone SDR/SSB transceiver to build. Greater simplification simplifies the original QCX circuit (i.e. 50% fewer mounting components, 50% fewer mounting components, no need for complex transformer windings, no need for wire alignment programs), and greater versatility

Port introduction:

-Charging: Built-in lithium battery charging port, only the included charger can be used! Other chargers are prohibited!

-Switch: Off, Bat: Built-in battery power, 13.8: External power supply

-DC13.8v/3a: External power interface

-Key: automaticKey body connection (a, b, single bond)

-Pa: external power amplifier, ptt signal

-Mic: External microphone interface

-Uart: Serial communication (TS-480 compatible instructions)

-Spk: External speakers