Once the tuner receives a strong enough signal to go into what is called "full quieting", it is pretty much up to the tuner from there. This is taking into account that it is receiving a direct signal and not something loaded with multipath reflections. As such, almost ANY outdoor antenna can pull in a reasonable signal so long as you are not a million miles from the transmitter.
To prove the point, how many times have you been able to listen to a station in your car with a factory installed stereo and then gone into the house and NOT been able to get the station in near as good using a wire dipole, amplified indoor antenna, rabbit ears, etc... ??? Do you think that the difference was that the "cheezy" car stereo had a better tuner section in it than your "hi-fi" grade tuner or was it the fact that the ( much shorter ) car antenna was outside ????
While i am a BIG fan of proper antenna systems, they become FAR more important at distance OR when you are nearfield with a lot of tall buildings or structures that will deflect the signal. You can actually run into problems by having TOO much antenna when the receiver is located relatively close to the transmitter. This is called "front end overload" and can be quite a problem in big cities.
As to Marv / Fanfare's comments, Quad used to do very similar tests / demo's when they came out with their FM-4. They even went so far as to bring a small transmitter being fed via vinyl to their "big" dealers and demo this for them and the interested customers. Switching between the vinyl being fed directly into the audio system and then listening to the same record via the signal being transmitted and then received by the FM-4 resulted in no discernable difference ( other than the delay ) under those conditions. Sean
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