This product is not only an antenna tuner, but also a power meter, and standing wavemeter, support to display standingwave value, forward power, and reverse power. Two modes of operation are supported: manual tuning and automatic tuning. Supports 13 parameter configurations, suitable for senior players' depth customization, such as automatic storage number, tuning speed, starting power, starting standingwave, power calibration, standingwave calibration, signal testing, relay testing, and other functions, customize your tuning system. No need for professional data cable, suitable for most radio stations and antennas in the market. Features: Small and Portable: This product is small in size, compact in appearance, strong and solid metal housing, but the weight is only 400g, with high portability. Antenna Tuner & Standing Wavemeter 2in1 Design: This product is not only an antenna tuner, but also a power meter, and standing wavemeter, support to display standingwave value, forward power, and reverse power. The power meter mode supports a maximum display of 150W SSB/CW in an untuned state. Please calibrate the standingwave power value of the equipment when using or replacing the radio for the first time. Powerful Tuning Ability: Built-in large capacitors and inductance value combinations, greatly improve tuning success rate and reduce the trouble of repeated antenna feed adjustment. The maximum combined value of capacitor is up to 3869pF, and the maximum combined value of inductor is up to 17.21uH. Morse Code Exerciser: This product has a 3.5mm headphone jack on the back panel and supports external single-paddle buttons, so you can easily practice Morse code in your spare time. No need to buy a separate Morse trainer, one device does it all. Manual Tuning and Automatic Tuning: Two modes of operation are supported: manual tuning and automatic tuning. In automatic mode, if the standingwave exceeds the set value (default 1.80) while monitoring the radio signal, the lowest standingwave is automatically triggered. In manual mode, the capacitance or inductance values can be adjusted to very low standingwave ratios by manually increasing or decreasing the values after automatic tuning or directly. High Power Resistance: The product uses wide signal wire, magnetic powderring, fine quality copper wire, rated power resistance of 100W (SSB), and instantaneous peaking power resistance of 120W (SSB mode). It can withstand different power at different frequencies or in different modes, please refer to the manual for details. 6 Kinds of State Interfaces: Supports 6 status interfaces, including user storage interface, bar power standingwave meter interface, large font interface, standingwave curve interface, power curve interface, relay, and battery voltage status interface. Built-in Professional Settings: Supports 13 parameter configurations, suitable for senior players' depth customization, such as automatic storage number, tuning speed, starting power, starting standingwave, power calibration, standingwave calibration, signal testing, relay testing, and other functions, customize your tuning system. Built-in Lithium Battery: The use of a large capacity 3300mAh polymer lithium battery with an untuned standby time of up to 150-200 hours and a tuned average standby time of about 15 hours is very suitable for portable operation while supporting charging via the Type-C interface. The system interface displays the battery voltage and remaining power in real-time, so you can use it outdoors without worrying about running out of power. The number of relays operated at different tuning levels will affect the battery lifespan. Built-in Buzzer: Built-in high-power active buzzer, when the standingwave exceeds the set value of the automatic sound "drop -" ringing, timely reminds the user to pay attention to the current standingwave, and the product is hung on the tree antenna feed, the sound is still clear. Wide Applications: Support various radio stations and antennas, no need for professional data cable, suitable for most radio stations and antennas in the market. Attention: 1. Please fully read the product manual and precautions before using the equipment; 2. Before using its own tuning, be sure to adjust the radio power to the lowest power, prevents the damage to the radio or tuning; 3. When using or replacing the radio for the first time, it is necessary to recalibrate the standingwave power value of the equipment. When the standingwave power value displayed by the radio and the equipment is inconsistent, the radio shall prevail; 4. Please use the USB Type-C charging cable included with this product for charging; 5. Keys are not included in the shipp