8 Tracks Covering 80m/60m/40m/30m/20m/17m/15m/10m. Excellent Pcb Layout Design In Line With High-Frequency Circuit Design Principles To Ensure Excellent Performance. Whether Using The Built-In Battery Or An External 13.8v Power Supply, It Can Reach 8 Levels Of 3-5w Power, And The Necessary To-220 Pack Pad Is Reserved For Upgrades. High Emission Efficiency, The 80m/60m/40m/30m/20m Efficiency Is Greater Than 80%, The 17m Efficiency Is Greater Than 70%, And The 15m/10m Efficiency Is Greater Than 60%. Frequency Accuracy Is Better Than 1ppm, And Frequency Stability Is Better Than 0.5ppm. ; Super Small Size: 88x39x124mm (Excluding Protruding Parts). Rich Interfaces (Cat, Ptt Out, Mic/Key, K-Head Mic). All Lpf Parts Use 100v C0g/Np0 Capacitors. Use for Omron Magnetic Locking Relays. Use A Lower Specific Noise Op Amp Chip. Built-In Speaker With Cavity. Bnc Antenna Interface. Plug Type:US Plug,it applies to Canada, India,Mexico, Thailand, the United States, the Philippines,Taiwan and so on. Voltage: AC100-240V Description: 1. Supports All Modes: Usb, Lsb, Cw, Am, Fm (Ssb Mode Has Good Reception Effect, But Poor Transmission Effect. Am And Fm Modes Are Free And Have Poor Effect) 2. Filter Dsp Filter: 4000, 2500, 1700, 500, 200, 100, 50hz Passband 3. Function Dsp Functions: Automatic Gain Control (Agc), Noise Reduction (Nr), Xmit Voice Trigger (Vox), Rx Attenuator (Att), Tx Noise Gate, Tx Unit Control, Volume Control, Dbm/S Meter. 4. Sidebar/Carrier Suppression Ssssb Transmit: Better Than -45dbc, Imd3 (Dual Tone) -33dbc, Receive: Better Than -50dbc 5. Support Multi-Band Support, Continuously Adjustable 10m Within The 80m Frequency Range (From 20khz..99mhz, Loss Performance) 6. Open Source Firmware, Built Using for Arduino Ide; Allows Experimentation, Features Can Be Added, Contributions Can Be Shared Through 7