MFJ ANTENNA ANALYZER
Here you will find several choices of Antenna Analyzers, for use in tuning your antennas. This is truly a miracle device. An antenna analyzer allows you to bench tune your antenna without transmitting. It's also good to check the broad capability of the antenna. This is a great way to tune your antenna for "the center of the band" point that you choose. This allows you to detail the antenna's tuning within the areas you talk the most.
As you may expect, one of the most popular models is the MFJ Antenna Analyzer. I have personally read several good reports on these units. A good way to check the reliability of such products is to look for reviews before making a purchase. This is the perfect way to get the right device for you.