1111MicrosoftInternetExplorer402DocumentNotSpecified7 8 磅Normal0Features 1 The shortwave automatic antenna tuner contains a set of 7 capacitors and 7 inductors which allows it with the largest configuration to work effectively in a wide frequency band overlapping the amateur radio HF band of 1 8 30MHz 2 Made of quality material wear resistance with stable and reliable performance 3 Built in lithium battery 3 7V 1600mAh you can use Type Ccable to recharge it 4 Equipped with 0 91inch OLED display you can see the data clearly 5 Automatically tuned no human and control wires are required and it is suitable for most radio stations 6 One button to on off easy to use very convenient Instructions Connect the radio ATU antenna tuner and antenna For the first use please set the output power of the radio or power amplifier between 20 30W or the high power tuning can easily damage the antenna tuner Set the radio mode use frequency modulation mode Choose the antenna band to use use 20 30W power in frequency modulation mode press the radio PTT observe the PWR and SWR of ATU antenna tuner ATU button TUNE use short press less than 1 second ATU button it is in reset state long press more than 1 second ATU button is in tuning state If the SWR display of the ATU antenna tuner in the transmitting state is 2 0 it means that the antenna is detuned 6 You need to use an antenna tuner Press and hold the ATU button tune to tune and observe the SWR value If the S
