I recently purchased an ICOM IC-R8600 radio. I would like to have information concerning which is the most suitable antenna for use in this radio to be able to receive and hear well the transmissions of shortwave stations from other countries. I have already the following antenna: ICOM AH-8000 discone antenna. I need to know if I need a dipole antenna for shortwave listening to accomplish my goal. If so, which antenna would you recommend for this radio? Thank you!