On occasion, the necessity for a 2-bay antenna arises, particularly when addressing second adjacent channel interference concerns. Within myLPFM, the [Potential Waiver] function can provide a list of antennas suitable for your proposed locatio
Yes, employing a directional antenna can potentially be a solution to address a second adjacent channel waiver issue. Directional antennas are designed to focus the radiation pattern of the transmitted signal in specific directions while reducing it in others. By carefully configuring a directional antenna, it may be possible to minimize interference with neighboring stations on second adjacent channels, thus improving the chances of obtaining a waiver for such a setup. However, the feasibility and success of this approach would depend on various technical and regulatory factors, and it may require consultation with experts and relevant authorities.
No, it does not mean that circularly polarized antennas like the Penetrator are illegal. LPFM stations are allowed to use circularly polarized antennas, as specified in §73.816(a) of the FCC rules. This regulation permits LPFM stations to use antennas with horizontal only polarization, vertical only polarization, circular polarization, or elliptical polarization. Therefore, you can use circularly polarized antennas like the Penetrator without violating the rules.