Antennas are used for signal reception. There are different companies that provide various different models of commercial antenna that can help you specifically for your use. Commercial antenna is build for commercial use that can stand different weather condition and still have great signal reception. With these antennas, the focus is to help the common people make use of the best of wireless technologies. There are a lot of different companies that build such antennas for use. If you have a specific demand that needs to be met, there are agencies that deliver tailor made designs of antennas specifically as per your demands, needs and preferences.
Generally, antenna do not require you to be so choosy as all you really need to care about is the fact that they should have a strong signal reception system in place and should be successful in giving you quality picture all throughout the year without any performance drop.