Yes, Most modern radios have an internal antenna tuner and there is nothing wrong to use a tuner to match the output of your radio to an impedance seen at the end of the coaxial cable. EFHW antennas might have elevated SWR readings on some bands due to the different position, height above ground or impact from nearby objects. When SWR is higher than 2:1 or antenna is used on the non-resonant frequency of the wire radiator, power reduction is recommended due to additional mismatch losses and the possibility to overheat the transformer. If the power up to 100W is used there is no need to adjust power on any of our EFHW antenna models. Just press the “TUNE” button on your radio and enjoy.