Jps,
At the end of the day, your bookshelf stereo isn't going to have the capability of a really good reciever no matter what you put on the end of it.
Generally they are made to a price and the "front-end" of the reciever often generates more noise than the antenna can provide, let alone immunity from other nearby noise sources.
I have a problem at the moment with my 2m (144MHz) transciever knocking out all of the AM Broadcast band on my neighbours radio, its not harmonic or sub-harmonic, it's just the fact that the RF Amp on thier radio was so poorly designed.
I can listen to mine no worries at all.
