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Greetings folks. I have a question for the folks with more knowledge and experience than I. In my vehicle. I have a couple of pieces of radio equipment. Suggested power input is 13.6v to 13.8v. I have both engine power and solar/Lifepo to work with. Issues; As we already know; engine power is variable in most vehicles. Even more so with down step alternators in today’s vehicles. When alternator is operating, getting 13.8 to 14.6 volts is easy. Once engine is off, we are left at the mercy of most batteries, bleeding charge down to 12.2v or lower over time. With Solar; In light I charge up to 14.2v. At night my Lithium batteries maintain 13.2 to 13.0 Volts (depending on length of night). So once again this voltage is variable between 13.0 to 14.2 volts. So enough of the word vomit. What have folks done to regulate voltage around the 13.6 voltage range? I have seen folks who simply use cheap voltage regulators/inverters. But I have concerns about dirty power, especially as from time to time the construction is questionable, creating a number of radio issues. So I am curious as to what other solutions are available/recommended, or would a cheap voltage regulator/inverter be sufficient? Looking forward to input Thanks folks.

History: Purchased Baofeng to listen to police radio - can't as its encrypted and digital. Looked into getting HAM License, looks too hard and my family members worn't ever take the test - since I only want to converse with family members found GMRS. Paid for license and did range test with my son (he has another Baofeng) and only got half a mile. Live in Bluffton, SC with no GMRS Repeaters at all. Questions: 1) Can Ham repeaters be set up to dually support a GMRS frequency if I ask nicely? Or can they only repeat one frequency at a time? 2) What needs to happen so I can talk to my family 10 miles away? 3) If I only use my 5 watt Baofeng to chat on GMRS channels and only listen to HAM channels is that OK legally? Thanks all! I'm happy to be part of this forum! Nick WRFF874