My existing configuration ( for education purpose) of radiated emission test is connect the EMCO bi-conical antenna, Model 3110B( 30M to 300MHz) antenna directly to the amplifier and then to the spectrum analyzer, I read some books it should include the Balun when feed into the antenna, is there anyone know where to buy or how to build the Balun, and any negative effect if without balun, thanks advance for any help.
Derek Leung.
