A very good system return loss may not
necessarily be a result of an excellent antenna; it could be a faulty cable with too much
insertion loss and an antenna out of specification. This would result in a larger than expected
signal drop and once the signal reaches the antenna, a great portion of the signal is now
reflected since the match is worse than expected. The end result is that the transmitted signal
is lower than needed and the overall coverage area is now affected. In other words, if your
system return loss is too good, it is not always a good thing.