1 * Three in one screw
Advantage:
1. It is very important to have power and Tsukuba SWR indication
2. Large battery capacity: 6000mah!!
3. The cw tone can be adjusted!!
4. The volume of cw sidetone can be adjusted!
5. The power mos tube is not bs170! Not easy to break!
6. Exquisite aluminum oxide shell!
7. Side ptt! Built in mic! It can be used by hand!
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 pocket 8-band SSB/CW QRP transceiver with built-in lithium battery, built-in microphone, PTT button and extremely 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 1602 screens, built-in battery, charger, built-in microphone, speaker, and can be connected to automatic buttons or CW decoding.
Product features:
1. IRF series transmitting tubes are used, which are durable.
2. It can be used to connect antenna (instrument base).
3. Aluminum laser shell marking, all aluminum button, translucent silicone button.
4. The original qcx circuit is greatly simplified, and the installed components are reduced by 50%. No complex transformer windings or wiring procedures are required, which is most cost-effective and easy to construct. (Turn green and turn red)
5: 8-band. Radio digital display! Maximum external power 13.8v 10w! Built in 12.6v battery
Function list:
-Simple, interesting and multi-functional cxp ssb high-frequency transceiver, with built-in dsp and sdr functions
-Eer e level drive ssb launch phase
-13.8v power supply about 10w ssb pep output
-Filter: 4000, 2500, 1700, 500, 200, 100, 50 hz passband
-Filter: 4000, 2500, 1700, 500, 200, 100, 50 hz passband
-Dsp functions: 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, reception: better than - 50dbc
-Multi band support, continuously adjustable in 160m-10m frequency range (loss of 20khz performance).. 99mhz
-Open source firmware, built into the ide; Allow experiments, add new functions, and share contributions through github. Software complexity: 2000 lines of code
-V-based software can be used for fast and complete rogue operations (qsk and semi qsk), or it can be executed in digital mode (without cat or ptt interface) for rx/tx switches, with tx/pa delay to control external ptt output - simple installation and modification, 8 component changes and 8 lines
-Lightweight and low-cost transceiver: thanks to the eer electronic liquid level transmitter, it has high power efficiency (no huge radiator) and simple design (no complex balanced linear power amplifier)
-The SSB transmitter phase is completely based on digital and software: control the phase of the si5351 PLL (through a small i2c frequency change of more than 800kbit/s) and the amplitude of the PA (through pwm to pwm) to test the microphone input and reconstruct the SSB signal. Key shaping circuit PA)
-All digital and software based SDR receiver stage (optional): I/Q signals (complex) are sampled from the quadrature sampling detector digital mixer, where 90 degree phase shifting (Hilbert transform) software is performed and sidebands are removed by adding
-Three Switchable Analog Regulators Independent of the Front Receiver
0db¡¢-13db¡¢-20db¡¢-33db¡¢-53db¡¢-60db¡¢-73db
-Noise level of Mds receiver: - 135dbm (200hz bw) at 28mhz
-Front receiver selectivity: steep frequency adjustment - 45db/ten roll down+/- 2khz
-Blocking dynamic range: 20khz offset 123db, 2khz offset 78db
-CW decoder, direct/negative yangge-a/b keying - Vfo a/b+rit and frequency division, and switching of corresponding relays with filters through i2c Cat support (TS480 subset) can stream audio, keys and display text through CAT
-This is probably the most economical and easiest to build independent sdr/ssb transceiver. Greater simplification simplifies the original qcx circuit (that is, 50% fewer installed components, 50% fewer installed components, no complex transformer windings, no wiring procedures), and more versatile
Port introduction:
-Charging: Built in lithium battery charging port, only the attached charger can be used! Do not use other chargers!
-Switch: off, Bat: built-in battery power supply, 13.8: external power supply
-DC13.8v/3a: External power interface
-Key: automatic key body connection (a, b, single key)
-Pa: external power amplifier, ptt signal
-Mic: external microphone interface
-Uart: serial communication (TS-480 compatible command)
-Spk: external speaker
Packing list:
1 * Host
1 * hand microphone
1 * Power supply
1 * Three in one screw