Does the terminator (balancing network) create losses?
No, it does not create losses. It dissipates losses from the ever present lack of perfect antenna efficiency. No antenna is a perfect radiator. In transmit mode, the terminator absorbs energy that did not get radiated out of the antenna. In most antenna systems, this gets carried back to the rig where it can do serious damage. For a terminator to create losses, it would have to have a low impedance. Our unit has a high impedance.