This is a HF band QRP SSB / CW transceiver.
Built in speaker, support to connect to PC, use FT8, jt65, FT4 and other digital modes, support CW mode, software control, and support CW automatic decoding.
4-band coverage 10/15/20/40M 4 Band (modified based on the source program and different from the source program)
Excellent PCB design and excellent circuit performance.Using 13.8V power supply, the power can be up to 3-5w in three bands, and the SOT-223 packaging pad required for upgrading is reserved.
High launch efficiency, with 40m / 20m efficiency higher than 80% and 15m efficiency higher than 60%. (Note: transmission is prohibited in non 40m / 20m / 15m / 10m band and can only be used for reception)Ultra small volume and weight: 160 x50 x 20MM (excluding protruding parts), body weight 340g, very suitable for mountaineering.

Multiple interface - cat, MIC / key, audio (headset supporting Android adaptation).
100V or 250V cog / NPO capacitors are used for LPF.
Use Omron magnetic holding relay.
Use ne5532 operational amplifier chip.
Built in high-quality speakers.
BNC antenna interface.
Specification:
Frequency Range:
Receiving: 0.5MHz ~ 30MHz (theoretically it can reach the limit of SI5351)
Transmission: 1.8~30MHz
Working mode: CW, AM, SSB
Minimum step: 10Hz
Antenna Impedance: 50Ω
Operating temperature range: 0℃~+50℃
Power supply voltage: 10.5 ~ 16V DC, the negative pole is grounded.
Current consumption:
Receive: 100mA@Max
Launch: 1A@Max
Body size: 50 x 20 x 180mm (W x H x L) (excluding protrusions)
Weight: about 340g (main unit only)
RF output power: 0.1-5W (SSB/CW)
0.1-5W(AM carrier) @13.8VDC
Battery capacity:built-in1100mAh rechargeable battery(The reception mode can be used for about 10 hours)
Plug Type:EU Plug,it applie