Thank you for the information. I assume that you have received some sort of violation notice and you are asking if you have legal recourse. In October 1996 the Federal Government passed a law, which the FTC enforces, that limits the ability of an HOA to restrict devices, like satellite dishes, from being installed by homeowners. However, there are technical restrictions in the law as to size and ownership of the area the device is installed on. The law does allow certain rules, but does not allow unreasonable rules.
The regulations are somewhat lengthy though and I cannot copy this here. However, you can read them in detail at the following link: https://www.fcc.gov/media/over-air-reception-devices-rule
Assuming that you are in compliance with the law, may be in acting in violation of the law by restricting you. In that case, you could provide them with the citation to the law and, if they did not cease and desist, you could have a local attorney contact them and let them know you will exercise your right to obtain an injunction if they persist. However, if they are acting within the law, there is nothing, from a legal perspective you can do to avoid their rules, even if they are just now enforcing them. In other words, there would be no grandfather clause.
Please feel free to ask for clarification after you have read the law and information at the FTC site. If you have no questions, then if you could take a moment to leave a positive rating in the ratings box above, I will receive credit for assisting you today. Thank you